301Description

301.01 DESCRIPTION. Furnish and place class I roadway and shoulder

base courses on a subgrade layer conforming to Section 305 in accordance with these specifications and in conformance with the lines, grades, thicknesses, and typical cross sections shown on the plans or established. Control the selection, placement , mixing, and compaction of materials so that the completed base course is uniform and conforms to plan dimensions and other acceptance requirements. Quality assurance requirements shall be as specified in the latest edition of the Department’s publication titled Application of Quality Assurance Specifications for Embankments and Base Course. When not specified, any of the following types may be used:

301.02 MATERIALS. Materials shall com ply with the following sections

and subsections and requirements: Asphalt Concrete Section 502 Portland Cement Concrete Section 901 Portland Cement 1001.01 Blended Hydraulic Cement 1001.02 Emulsified Asphalt Section 1002 Asphalt Materials Section 1002 Crushed Stone 1003.01 & 1003.03.1 Recycled Portland Cement Concrete 1003.01 & 1003.03.2 Water 1018.01 Blended Calcium Sulfate 1003.01 & 1003.03.3

301.02.1 Soils for Soil Cement: Soils for soil cement base course

shall consist of materials that will stabilize with cement in accordance with DOTD TR 432. Such materials are those soils classified as A -1-a, A-1-b, A-2-4, A-2-6, A-4, and A -6 in accordance with DOTD TR 423. Do not use soil with a Liquid Limit greater than 35, a Plasticity Index greater than 12, or an organic content greater than 2 percent. Determine Liquid Limit and Plasticity Index in accordance with DOTD TR 428. Determine org anic content in accordance with DOTD TR 413. Do not use soil with over 79 percent sand or 60 percent silt when tested in accordance with DOTD TR 407. Do not blend or treat soils which do not meet any of these requirements. Do not use topsoil. Obtain th e material to be stabilized from outside right -of-way limits except as provided in 106.02.3 . The engineer will take samples from the roadway or the stockpile in accordance with the Material Sampling Manual.

301.02.2 Portland Cement: Use Type I or II portland cement. The

quantity of cement used shall be supported by proof of deliv ery.

301.02.3 Blended Hydraulic Cement: The cement shall be Type

IP. The quantity of cement used shall be supported by proof of delivery.

301.02.4 Asphalt Concrete Base Course : The material

requirements for asphalt concrete base course shall be as described in The Department will identify dust -sensitive areas in the plans. In these specific areas, the dust control plan must also include environmental requirements.

301.02 MATERIALS. Materials shall com ply with the following sections

and subsections and requirements: Asphalt Concrete Section 502 Portland Cement Concrete Section 901 Portland Cement 1001.01 Blended Hydraulic Cement 1001.02 Emulsified Asphalt Section 1002 Asphalt Materials Section 1002 Crushed Stone 1003.01 & 1003.03.1 Recycled Portland Cement Concrete 1003.01 & 1003.03.2 Water 1018.01 Blended Calcium Sulfate 1003.01 & 1003.03.3

301.02.1 Soils for Soil Cement: Soils for soil cement base course

shall consist of materials that will stabilize with cement in accordance with DOTD TR 432. Such materials are those soils classified as A -1-a, A-1-b, A-2-4, A-2-6, A-4, and A -6 in accordance with DOTD TR 423. Do not use soil with a Liquid Limit greater than 35, a Plasticity Index greater than 12, or an organic content greater than 2 percent. Determine Liquid Limit and Plasticity Index in accordance with DOTD TR 428. Determine org anic content in accordance with DOTD TR 413. Do not use soil with over 79 percent sand or 60 percent silt when tested in accordance with DOTD TR 407. Do not blend or treat soils which do not meet any of these requirements. Do not use topsoil. Obtain th e material to be stabilized from outside right -of-way limits except as provided in 106.02.3 . The engineer will take samples from the roadway or the stockpile in accordance with the Material Sampling Manual.

301.02.2 Portland Cement: Use Type I or II portland cement. The

quantity of cement used shall be supported by proof of deliv ery.

301.02.3 Blended Hydraulic Cement: The cement shall be Type

IP. The quantity of cement used shall be supported by proof of delivery.

301.02.4 Asphalt Concrete Base Course : The material

requirements for asphalt concrete base course shall be as described in The Department will identify dust -sensitive areas in the plans. In these specific areas, the dust control plan must also include environmental requirements.

301.02 MATERIALS. Materials shall com ply with the following sections

and subsections and requirements: Asphalt Concrete Section 502 Portland Cement Concrete Section 901 Portland Cement 1001.01 Blended Hydraulic Cement 1001.02 Emulsified Asphalt Section 1002 Asphalt Materials Section 1002 Crushed Stone 1003.01 & 1003.03.1 Recycled Portland Cement Concrete 1003.01 & 1003.03.2 Water 1018.01 Blended Calcium Sulfate 1003.01 & 1003.03.3

301.02.1 Soils for Soil Cement: Soils for soil cement base course

shall consist of materials that will stabilize with cement in accordance with DOTD TR 432. Such materials are those soils classified as A -1-a, A-1-b, A-2-4, A-2-6, A-4, and A -6 in accordance with DOTD TR 423. Do not use soil with a Liquid Limit greater than 35, a Plasticity Index greater than 12, or an organic content greater than 2 percent. Determine Liquid Limit and Plasticity Index in accordance with DOTD TR 428. Determine org anic content in accordance with DOTD TR 413. Do not use soil with over 79 percent sand or 60 percent silt when tested in accordance with DOTD TR 407. Do not blend or treat soils which do not meet any of these requirements. Do not use topsoil. Obtain th e material to be stabilized from outside right -of-way limits except as provided in 106.02.3 . The engineer will take samples from the roadway or the stockpile in accordance with the Material Sampling Manual.

301.02.2 Portland Cement: Use Type I or II portland cement. The

quantity of cement used shall be supported by proof of deliv ery.

301.02.3 Blended Hydraulic Cement: The cement shall be Type

IP. The quantity of cement used shall be supported by proof of delivery.

301.02.4 Asphalt Concrete Base Course : The material

requirements for asphalt concrete base course shall be as described in The Department will identify dust -sensitive areas in the plans. In these specific areas, the dust control plan must also include environmental requirements.

301.02 MATERIALS. Materials shall com ply with the following sections

and subsections and requirements: Asphalt Concrete Section 502 Portland Cement Concrete Section 901 Portland Cement 1001.01 Blended Hydraulic Cement 1001.02 Emulsified Asphalt Section 1002 Asphalt Materials Section 1002 Crushed Stone 1003.01 & 1003.03.1 Recycled Portland Cement Concrete 1003.01 & 1003.03.2 Water 1018.01 Blended Calcium Sulfate 1003.01 & 1003.03.3

301.02.1 Soils for Soil Cement: Soils for soil cement base course

shall consist of materials that will stabilize with cement in accordance with DOTD TR 432. Such materials are those soils classified as A -1-a, A-1-b, A-2-4, A-2-6, A-4, and A -6 in accordance with DOTD TR 423. Do not use soil with a Liquid Limit greater than 35, a Plasticity Index greater than 12, or an organic content greater than 2 percent. Determine Liquid Limit and Plasticity Index in accordance with DOTD TR 428. Determine org anic content in accordance with DOTD TR 413. Do not use soil with over 79 percent sand or 60 percent silt when tested in accordance with DOTD TR 407. Do not blend or treat soils which do not meet any of these requirements. Do not use topsoil. Obtain th e material to be stabilized from outside right -of-way limits except as provided in 106.02.3 . The engineer will take samples from the roadway or the stockpile in accordance with the Material Sampling Manual.

301.02.2 Portland Cement: Use Type I or II portland cement. The

quantity of cement used shall be supported by proof of deliv ery.

301.02.3 Blended Hydraulic Cement: The cement shall be Type

IP. The quantity of cement used shall be supported by proof of delivery.

301.02.4 Asphalt Concrete Base Course : The material

requirements for asphalt concrete base course shall be as described in The Department will identify dust -sensitive areas in the plans. In these specific areas, the dust control plan must also include environmental requirements.

301.02 MATERIALS. Materials shall com ply with the following sections

and subsections and requirements: Asphalt Concrete Section 502 Portland Cement Concrete Section 901 Portland Cement 1001.01 Blended Hydraulic Cement 1001.02 Emulsified Asphalt Section 1002 Asphalt Materials Section 1002 Crushed Stone 1003.01 & 1003.03.1 Recycled Portland Cement Concrete 1003.01 & 1003.03.2 Water 1018.01 Blended Calcium Sulfate 1003.01 & 1003.03.3

301.02.1 Soils for Soil Cement: Soils for soil cement base course

shall consist of materials that will stabilize with cement in accordance with DOTD TR 432. Such materials are those soils classified as A -1-a, A-1-b, A-2-4, A-2-6, A-4, and A -6 in accordance with DOTD TR 423. Do not use soil with a Liquid Limit greater than 35, a Plasticity Index greater than 12, or an organic content greater than 2 percent. Determine Liquid Limit and Plasticity Index in accordance with DOTD TR 428. Determine org anic content in accordance with DOTD TR 413. Do not use soil with over 79 percent sand or 60 percent silt when tested in accordance with DOTD TR 407. Do not blend or treat soils which do not meet any of these requirements. Do not use topsoil. Obtain th e material to be stabilized from outside right -of-way limits except as provided in 106.02.3 . The engineer will take samples from the roadway or the stockpile in accordance with the Material Sampling Manual.

301.02.2 Portland Cement: Use Type I or II portland cement. The

quantity of cement used shall be supported by proof of deliv ery.

301.02.3 Blended Hydraulic Cement: The cement shall be Type

IP. The quantity of cement used shall be supported by proof of delivery.

301.02.4 Asphalt Concrete Base Course : The material

requirements for asphalt concrete base course shall be as described in The Department will identify dust -sensitive areas in the plans. In these specific areas, the dust control plan must also include environmental requirements.

301.02 MATERIALS. Materials shall com ply with the following sections

and subsections and requirements: Asphalt Concrete Section 502 Portland Cement Concrete Section 901 Portland Cement 1001.01 Blended Hydraulic Cement 1001.02 Emulsified Asphalt Section 1002 Asphalt Materials Section 1002 Crushed Stone 1003.01 & 1003.03.1 Recycled Portland Cement Concrete 1003.01 & 1003.03.2 Water 1018.01 Blended Calcium Sulfate 1003.01 & 1003.03.3

301.02.1 Soils for Soil Cement: Soils for soil cement base course

shall consist of materials that will stabilize with cement in accordance with DOTD TR 432. Such materials are those soils classified as A -1-a, A-1-b, A-2-4, A-2-6, A-4, and A -6 in accordance with DOTD TR 423. Do not use soil with a Liquid Limit greater than 35, a Plasticity Index greater than 12, or an organic content greater than 2 percent. Determine Liquid Limit and Plasticity Index in accordance with DOTD TR 428. Determine org anic content in accordance with DOTD TR 413. Do not use soil with over 79 percent sand or 60 percent silt when tested in accordance with DOTD TR 407. Do not blend or treat soils which do not meet any of these requirements. Do not use topsoil. Obtain th e material to be stabilized from outside right -of-way limits except as provided in 106.02.3 . The engineer will take samples from the roadway or the stockpile in accordance with the Material Sampling Manual.

301.02.2 Portland Cement: Use Type I or II portland cement. The

quantity of cement used shall be supported by proof of deliv ery.

301.02.3 Blended Hydraulic Cement: The cement shall be Type

IP. The quantity of cement used shall be supported by proof of delivery.

301.02.4 Asphalt Concrete Base Course : The material

requirements for asphalt concrete base course shall be as described in Section 502 . The top half of the base thickness shall be asphalt concrete and the remaining thickness shall be the same type and construction as the top layer of embankment, treated layer, or subgrade.

301.02.5 Treated Layer Under Asphalt Concrete Base

Course: The treated l ayer under asphalt concrete shall consist of the same material and treatment as the top layer of embankment, including the prime coat requirements. Do not place raw, untreated material between a treated embankment and the asphalt concrete.

301.03 EQUIPMENT. Obtain approval of equipment prior to use.

301.03.1 Soil Cement:

301.03.1 1 General: Obtain certification for central mix plants in

accordance with current Department procedures. Central mix plants may be either batch or continuous mix process and shall proportion aggregates, soils, and additives in a manner that will meet specification requirements. Provide safe, convenient facilities for sampling mixture components prior to their introduction into the weigh hopper or pugmill. Mixing units shall have no dead areas which all ow materials to remain unmixed or which permit improperly mixed materials to be discharged into hauling or storage units. The minimum capacity shall be 100 tons per hour. Provide a control system that will automatically stop plant operations when the material in any storage facility or working bin becomes empty or interrupts the flow of material. Do not permit the plant to operate unless this automatic control system is in good working order. When this control system malfunctions during production, d iscontinue operations immediately. Interlock the soil or aggregate feeder system with the feeder system for cement, additives, and water such that the proportions of the components of the approved mix design maintain continuously. The complete process, including the plant with necessary auxiliary equipment and controls, operating procedures, and sampling and testing methods , require approval by the Department prior to use. Any modifications to plant equipment or operations shall be approved prior to use. Provide plant site and project site laboratories conforming to Section 722 at no direct pay. Section 502 . The top half of the base thickness shall be asphalt concrete and the remaining thickness shall be the same type and construction as the top layer of embankment, treated layer, or subgrade.

301.02.5 Treated Layer Under Asphalt Concrete Base

Course: The treated l ayer under asphalt concrete shall consist of the same material and treatment as the top layer of embankment, including the prime coat requirements. Do not place raw, untreated material between a treated embankment and the asphalt concrete.

301.03 EQUIPMENT. Obtain approval of equipment prior to use.

301.03.1 Soil Cement:

301.03.1 1 General: Obtain certification for central mix plants in

accordance with current Department procedures. Central mix plants may be either batch or continuous mix process and shall proportion aggregates, soils, and additives in a manner that will meet specification requirements. Provide safe, convenient facilities for sampling mixture components prior to their introduction into the weigh hopper or pugmill. Mixing units shall have no dead areas which all ow materials to remain unmixed or which permit improperly mixed materials to be discharged into hauling or storage units. The minimum capacity shall be 100 tons per hour. Provide a control system that will automatically stop plant operations when the material in any storage facility or working bin becomes empty or interrupts the flow of material. Do not permit the plant to operate unless this automatic control system is in good working order. When this control system malfunctions during production, d iscontinue operations immediately. Interlock the soil or aggregate feeder system with the feeder system for cement, additives, and water such that the proportions of the components of the approved mix design maintain continuously. The complete process, including the plant with necessary auxiliary equipment and controls, operating procedures, and sampling and testing methods , require approval by the Department prior to use. Any modifications to plant equipment or operations shall be approved prior to use. Provide plant site and project site laboratories conforming to Section 722 at no direct pay. Section 502 . The top half of the base thickness shall be asphalt concrete and the remaining thickness shall be the same type and construction as the top layer of embankment, treated layer, or subgrade.

301.02.5 Treated Layer Under Asphalt Concrete Base

Course: The treated l ayer under asphalt concrete shall consist of the same material and treatment as the top layer of embankment, including the prime coat requirements. Do not place raw, untreated material between a treated embankment and the asphalt concrete.

301.03 EQUIPMENT. Obtain approval of equipment prior to use.

301.03.1 Soil Cement:

301.03.1 1 General: Obtain certification for central mix plants in

accordance with current Department procedures. Central mix plants may be either batch or continuous mix process and shall proportion aggregates, soils, and additives in a manner that will meet specification requirements. Provide safe, convenient facilities for sampling mixture components prior to their introduction into the weigh hopper or pugmill. Mixing units shall have no dead areas which all ow materials to remain unmixed or which permit improperly mixed materials to be discharged into hauling or storage units. The minimum capacity shall be 100 tons per hour. Provide a control system that will automatically stop plant operations when the material in any storage facility or working bin becomes empty or interrupts the flow of material. Do not permit the plant to operate unless this automatic control system is in good working order. When this control system malfunctions during production, d iscontinue operations immediately. Interlock the soil or aggregate feeder system with the feeder system for cement, additives, and water such that the proportions of the components of the approved mix design maintain continuously. The complete process, including the plant with necessary auxiliary equipment and controls, operating procedures, and sampling and testing methods , require approval by the Department prior to use. Any modifications to plant equipment or operations shall be approved prior to use. Provide plant site and project site laboratories conforming to Section 722 at no direct pay. Section 502 . The top half of the base thickness shall be asphalt concrete and the remaining thickness shall be the same type and construction as the top layer of embankment, treated layer, or subgrade.

301.02.5 Treated Layer Under Asphalt Concrete Base

Course: The treated l ayer under asphalt concrete shall consist of the same material and treatment as the top layer of embankment, including the prime coat requirements. Do not place raw, untreated material between a treated embankment and the asphalt concrete.

301.03 EQUIPMENT. Obtain approval of equipment prior to use.

301.03.1 Soil Cement:

301.03.1 1 General: Obtain certification for central mix plants in

accordance with current Department procedures. Central mix plants may be either batch or continuous mix process and shall proportion aggregates, soils, and additives in a manner that will meet specification requirements. Provide safe, convenient facilities for sampling mixture components prior to their introduction into the weigh hopper or pugmill. Mixing units shall have no dead areas which all ow materials to remain unmixed or which permit improperly mixed materials to be discharged into hauling or storage units. The minimum capacity shall be 100 tons per hour. Provide a control system that will automatically stop plant operations when the material in any storage facility or working bin becomes empty or interrupts the flow of material. Do not permit the plant to operate unless this automatic control system is in good working order. When this control system malfunctions during production, d iscontinue operations immediately. Interlock the soil or aggregate feeder system with the feeder system for cement, additives, and water such that the proportions of the components of the approved mix design maintain continuously. The complete process, including the plant with necessary auxiliary equipment and controls, operating procedures, and sampling and testing methods , require approval by the Department prior to use. Any modifications to plant equipment or operations shall be approved prior to use. Provide plant site and project site laboratories conforming to Section 722 at no direct pay. Section 502 . The top half of the base thickness shall be asphalt concrete and the remaining thickness shall be the same type and construction as the top layer of embankment, treated layer, or subgrade.

301.02.5 Treated Layer Under Asphalt Concrete Base

Course: The treated l ayer under asphalt concrete shall consist of the same material and treatment as the top layer of embankment, including the prime coat requirements. Do not place raw, untreated material between a treated embankment and the asphalt concrete.

301.03 EQUIPMENT. Obtain approval of equipment prior to use.

301.03.1 Soil Cement:

301.03.1 1 General: Obtain certification for central mix plants in

accordance with current Department procedures. Central mix plants may be either batch or continuous mix process and shall proportion aggregates, soils, and additives in a manner that will meet specification requirements. Provide safe, convenient facilities for sampling mixture components prior to their introduction into the weigh hopper or pugmill. Mixing units shall have no dead areas which all ow materials to remain unmixed or which permit improperly mixed materials to be discharged into hauling or storage units. The minimum capacity shall be 100 tons per hour. Provide a control system that will automatically stop plant operations when the material in any storage facility or working bin becomes empty or interrupts the flow of material. Do not permit the plant to operate unless this automatic control system is in good working order. When this control system malfunctions during production, d iscontinue operations immediately. Interlock the soil or aggregate feeder system with the feeder system for cement, additives, and water such that the proportions of the components of the approved mix design maintain continuously. The complete process, including the plant with necessary auxiliary equipment and controls, operating procedures, and sampling and testing methods , require approval by the Department prior to use. Any modifications to plant equipment or operations shall be approved prior to use. Provide plant site and project site laboratories conforming to Section 722 at no direct pay. Measuring devices shall be subject to approval and shall be tested, inspected and certified by an approved independent scale service or the Weights and Measures Division, Louisiana Department of Agriculture and Forestry, at no direct pay, every 90 days or as often as deemed necessary to ensure their accuracy. Scales shall be accurate to ±0.5 percent throughout the range of use. Maximum graduation on scales shall be 0.1 percent of the rated scale capacity. Equip the cement, soil and aggregate feeders, and water measuring devices with devices by which the rate of feed can be de termined while the plant is in operation. Water measuring devices shall be accurate to 1 percent of the metered quantity. Water meters shall have a maximum graduation of 1 gallon. Methods and equipment for adding liquid additives shall be approved. Equip ment for metering additives shall be capable of measuring the component to an accuracy of 3 percent of the required weight.

301.03.1 2 Batch Process: When using a batch mixing process,

equip the mixer with a timing device, which will indicate by an obvious signal the completion of the mixing period. The time of mixing a batch shall begin after all components are in the mixer and shall continue until uniformly blended. The mixing time shall be approved. Weigh cement for each batch on scales separate from those we ighing other components and meeting the requirements of this subsection.

301.03.1 3 Continuous Mix Process: When controlling a

continuous mix operation by weight, provide belt scales for conveyor systems for all components except water.

301.03.1 4 Hauling Equipment: Haul the mixture from the plant

in approved covered trucks that will maintain the moisture content and prevent segregation and the loss of fine material. The cover shall be waterproof, shall completely cover the bed of the truck, shall be equipped with tie dow ns, and shall not have any rips, tears, or holes.

301.03.1 5 Compaction Equipment: Compaction equipment

shall be conventional sheepsfoot type roller or a self -propelled tamping foot compactor -type roller for initial compaction. The spikes shall be sufficient in s ize and number to provide uniform compaction for the full width and depth of the base course. Finish rolling shall be with a pneumatic tire roller.

301.03.2 Asphalt Concrete: Equipment for asphalt concrete shall

conform to Section 503 . Measuring devices shall be subject to approval and shall be tested, inspected and certified by an approved independent scale service or the Weights and Measures Division, Louisiana Department of Agriculture and Forestry, at no direct pay, every 90 days or as often as deemed necessary to ensure their accuracy. Scales shall be accurate to ±0.5 percent throughout the range of use. Maximum graduation on scales shall be 0.1 percent of the rated scale capacity. Equip the cement, soil and aggregate feeders, and water measuring devices with devices by which the rate of feed can be de termined while the plant is in operation. Water measuring devices shall be accurate to 1 percent of the metered quantity. Water meters shall have a maximum graduation of 1 gallon. Methods and equipment for adding liquid additives shall be approved. Equip ment for metering additives shall be capable of measuring the component to an accuracy of 3 percent of the required weight.

301.03.1 2 Batch Process: When using a batch mixing process,

equip the mixer with a timing device, which will indicate by an obvious signal the completion of the mixing period. The time of mixing a batch shall begin after all components are in the mixer and shall continue until uniformly blended. The mixing time shall be approved. Weigh cement for each batch on scales separate from those we ighing other components and meeting the requirements of this subsection.

301.03.1 3 Continuous Mix Process: When controlling a

continuous mix operation by weight, provide belt scales for conveyor systems for all components except water.

301.03.1 4 Hauling Equipment: Haul the mixture from the plant

in approved covered trucks that will maintain the moisture content and prevent segregation and the loss of fine material. The cover shall be waterproof, shall completely cover the bed of the truck, shall be equipped with tie dow ns, and shall not have any rips, tears, or holes.

301.03.1 5 Compaction Equipment: Compaction equipment

shall be conventional sheepsfoot type roller or a self -propelled tamping foot compactor -type roller for initial compaction. The spikes shall be sufficient in s ize and number to provide uniform compaction for the full width and depth of the base course. Finish rolling shall be with a pneumatic tire roller.

301.03.2 Asphalt Concrete: Equipment for asphalt concrete shall

conform to Section 503 . Measuring devices shall be subject to approval and shall be tested, inspected and certified by an approved independent scale service or the Weights and Measures Division, Louisiana Department of Agriculture and Forestry, at no direct pay, every 90 days or as often as deemed necessary to ensure their accuracy. Scales shall be accurate to ±0.5 percent throughout the range of use. Maximum graduation on scales shall be 0.1 percent of the rated scale capacity. Equip the cement, soil and aggregate feeders, and water measuring devices with devices by which the rate of feed can be de termined while the plant is in operation. Water measuring devices shall be accurate to 1 percent of the metered quantity. Water meters shall have a maximum graduation of 1 gallon. Methods and equipment for adding liquid additives shall be approved. Equip ment for metering additives shall be capable of measuring the component to an accuracy of 3 percent of the required weight.

301.03.1 2 Batch Process: When using a batch mixing process,

equip the mixer with a timing device, which will indicate by an obvious signal the completion of the mixing period. The time of mixing a batch shall begin after all components are in the mixer and shall continue until uniformly blended. The mixing time shall be approved. Weigh cement for each batch on scales separate from those we ighing other components and meeting the requirements of this subsection.

301.03.1 3 Continuous Mix Process: When controlling a

continuous mix operation by weight, provide belt scales for conveyor systems for all components except water.

301.03.1 4 Hauling Equipment: Haul the mixture from the plant

in approved covered trucks that will maintain the moisture content and prevent segregation and the loss of fine material. The cover shall be waterproof, shall completely cover the bed of the truck, shall be equipped with tie dow ns, and shall not have any rips, tears, or holes.

301.03.1 5 Compaction Equipment: Compaction equipment

shall be conventional sheepsfoot type roller or a self -propelled tamping foot compactor -type roller for initial compaction. The spikes shall be sufficient in s ize and number to provide uniform compaction for the full width and depth of the base course. Finish rolling shall be with a pneumatic tire roller.

301.03.2 Asphalt Concrete: Equipment for asphalt concrete shall

conform to Section 503 . Measuring devices shall be subject to approval and shall be tested, inspected and certified by an approved independent scale service or the Weights and Measures Division, Louisiana Department of Agriculture and Forestry, at no direct pay, every 90 days or as often as deemed necessary to ensure their accuracy. Scales shall be accurate to ±0.5 percent throughout the range of use. Maximum graduation on scales shall be 0.1 percent of the rated scale capacity. Equip the cement, soil and aggregate feeders, and water measuring devices with devices by which the rate of feed can be de termined while the plant is in operation. Water measuring devices shall be accurate to 1 percent of the metered quantity. Water meters shall have a maximum graduation of 1 gallon. Methods and equipment for adding liquid additives shall be approved. Equip ment for metering additives shall be capable of measuring the component to an accuracy of 3 percent of the required weight.

301.03.1 2 Batch Process: When using a batch mixing process,

equip the mixer with a timing device, which will indicate by an obvious signal the completion of the mixing period. The time of mixing a batch shall begin after all components are in the mixer and shall continue until uniformly blended. The mixing time shall be approved. Weigh cement for each batch on scales separate from those we ighing other components and meeting the requirements of this subsection.

301.03.1 3 Continuous Mix Process: When controlling a

continuous mix operation by weight, provide belt scales for conveyor systems for all components except water.

301.03.1 4 Hauling Equipment: Haul the mixture from the plant

in approved covered trucks that will maintain the moisture content and prevent segregation and the loss of fine material. The cover shall be waterproof, shall completely cover the bed of the truck, shall be equipped with tie dow ns, and shall not have any rips, tears, or holes.

301.03.1 5 Compaction Equipment: Compaction equipment

shall be conventional sheepsfoot type roller or a self -propelled tamping foot compactor -type roller for initial compaction. The spikes shall be sufficient in s ize and number to provide uniform compaction for the full width and depth of the base course. Finish rolling shall be with a pneumatic tire roller.

301.03.2 Asphalt Concrete: Equipment for asphalt concrete shall

conform to Section 503 . Measuring devices shall be subject to approval and shall be tested, inspected and certified by an approved independent scale service or the Weights and Measures Division, Louisiana Department of Agriculture and Forestry, at no direct pay, every 90 days or as often as deemed necessary to ensure their accuracy. Scales shall be accurate to ±0.5 percent throughout the range of use. Maximum graduation on scales shall be 0.1 percent of the rated scale capacity. Equip the cement, soil and aggregate feeders, and water measuring devices with devices by which the rate of feed can be de termined while the plant is in operation. Water measuring devices shall be accurate to 1 percent of the metered quantity. Water meters shall have a maximum graduation of 1 gallon. Methods and equipment for adding liquid additives shall be approved. Equip ment for metering additives shall be capable of measuring the component to an accuracy of 3 percent of the required weight.

301.03.1 2 Batch Process: When using a batch mixing process,

equip the mixer with a timing device, which will indicate by an obvious signal the completion of the mixing period. The time of mixing a batch shall begin after all components are in the mixer and shall continue until uniformly blended. The mixing time shall be approved. Weigh cement for each batch on scales separate from those we ighing other components and meeting the requirements of this subsection.

301.03.1 3 Continuous Mix Process: When controlling a

continuous mix operation by weight, provide belt scales for conveyor systems for all components except water.

301.03.1 4 Hauling Equipment: Haul the mixture from the plant

in approved covered trucks that will maintain the moisture content and prevent segregation and the loss of fine material. The cover shall be waterproof, shall completely cover the bed of the truck, shall be equipped with tie dow ns, and shall not have any rips, tears, or holes.

301.03.1 5 Compaction Equipment: Compaction equipment

shall be conventional sheepsfoot type roller or a self -propelled tamping foot compactor -type roller for initial compaction. The spikes shall be sufficient in s ize and number to provide uniform compaction for the full width and depth of the base course. Finish rolling shall be with a pneumatic tire roller.

301.03.2 Asphalt Concrete: Equipment for asphalt concrete shall

conform to Section 503 . Measuring devices shall be subject to approval and shall be tested, inspected and certified by an approved independent scale service or the Weights and Measures Division, Louisiana Department of Agriculture and Forestry, at no direct pay, every 90 days or as often as deemed necessary to ensure their accuracy. Scales shall be accurate to ±0.5 percent throughout the range of use. Maximum graduation on scales shall be 0.1 percent of the rated scale capacity. Equip the cement, soil and aggregate feeders, and water measuring devices with devices by which the rate of feed can be de termined while the plant is in operation. Water measuring devices shall be accurate to 1 percent of the metered quantity. Water meters shall have a maximum graduation of 1 gallon. Methods and equipment for adding liquid additives shall be approved. Equip ment for metering additives shall be capable of measuring the component to an accuracy of 3 percent of the required weight.

301.03.1 2 Batch Process: When using a batch mixing process,

equip the mixer with a timing device, which will indicate by an obvious signal the completion of the mixing period. The time of mixing a batch shall begin after all components are in the mixer and shall continue until uniformly blended. The mixing time shall be approved. Weigh cement for each batch on scales separate from those we ighing other components and meeting the requirements of this subsection.

301.03.1 3 Continuous Mix Process: When controlling a

continuous mix operation by weight, provide belt scales for conveyor systems for all components except water.

301.03.1 4 Hauling Equipment: Haul the mixture from the plant

in approved covered trucks that will maintain the moisture content and prevent segregation and the loss of fine material. The cover shall be waterproof, shall completely cover the bed of the truck, shall be equipped with tie dow ns, and shall not have any rips, tears, or holes.

301.03.1 5 Compaction Equipment: Compaction equipment

shall be conventional sheepsfoot type roller or a self -propelled tamping foot compactor -type roller for initial compaction. The spikes shall be sufficient in s ize and number to provide uniform compaction for the full width and depth of the base course. Finish rolling shall be with a pneumatic tire roller.

301.03.2 Asphalt Concrete: Equipment for asphalt concrete shall

conform to Section 503 .

301.03.3 Crushed Stone and Recycled Portland Cement

Concrete: Equipment used to mix crushed stone and recycled portland cement concrete shall produce a uniform blend conforming to the requiremen ts elsewhere herein. When using a central mix plant, it shall conform to 301.03.1 .

301.03.3 1 Hauling Equipment: Haul crushed stone and

recycled portland cement concrete in trucks with tight, smooth beds of sufficient size and condition to prevent segregation and the loss of material.

301.03.3 2 Compaction Equipment: Stone and recycled

portland cement concrete compaction equipment shall be designed for the compaction of these materials and may be static or vibratory. Perform finish rolling with static, smooth steel wheel or pneumatic tire rollers. Pneumatic tires shall have smooth trea d, shall be the same size and ply rating, and shall be inflated to a uniform pressure not varying more than ±5 psi between tires. Wheels shall not wobble and shall be aligned such that gaps between tires on one axle are covered by tires of the other axle.

301.03.4 Automatic Finishing Machine: For all Class I base

courses except asphalt concrete, use an approved automatic finishing machine. The approved automatic finishing machine shall be capable of operating from an erected stringline or Global Positioning Syst em (GPS) and laser system, and be capable of automatically controlling grade and cross slope conforming to 502.08.2.2 .

301.04 Storage and Handling of Materials Prior To

MIXING . Stockpiles of materials shall be uniform; separation into material sizes may be required. Equipment and methods for stockpiling shall be such that no segregation will result. Do not allow foreign material to be incorporated into the stockpiled materials . Do not use contaminated materials. Stockpiles shall be of uniform moisture content and well drained. Stockpile soils and aggregates in dedicated stockpiles. Obtain approval of the stockpiled material prior to mixing with cement. Control the moisture content of the stockpiles so that the blended mixture , when tested in accordance with DOTD TR 403, shall be within ±2.0 percent of the optimum moisture content at the time of compaction. Equip storage facilities containing soil or fine aggregate with vibrators that will effectively vibrate the side walls of the feeder, prevent any accumulation of material , and ensure a constant, uniform supply of material to the mixing unit.

301.03.3 Crushed Stone and Recycled Portland Cement

Concrete: Equipment used to mix crushed stone and recycled portland cement concrete shall produce a uniform blend conforming to the requiremen ts elsewhere herein. When using a central mix plant, it shall conform to 301.03.1 .

301.03.3 1 Hauling Equipment: Haul crushed stone and

recycled portland cement concrete in trucks with tight, smooth beds of sufficient size and condition to prevent segregation and the loss of material.

301.03.3 2 Compaction Equipment: Stone and recycled

portland cement concrete compaction equipment shall be designed for the compaction of these materials and may be static or vibratory. Perform finish rolling with static, smooth steel wheel or pneumatic tire rollers. Pneumatic tires shall have smooth trea d, shall be the same size and ply rating, and shall be inflated to a uniform pressure not varying more than ±5 psi between tires. Wheels shall not wobble and shall be aligned such that gaps between tires on one axle are covered by tires of the other axle.

301.03.4 Automatic Finishing Machine: For all Class I base

courses except asphalt concrete, use an approved automatic finishing machine. The approved automatic finishing machine shall be capable of operating from an erected stringline or Global Positioning Syst em (GPS) and laser system, and be capable of automatically controlling grade and cross slope conforming to 502.08.2.2 .

301.04 Storage and Handling of Materials Prior To

MIXING . Stockpiles of materials shall be uniform; separation into material sizes may be required. Equipment and methods for stockpiling shall be such that no segregation will result. Do not allow foreign material to be incorporated into the stockpiled materials . Do not use contaminated materials. Stockpiles shall be of uniform moisture content and well drained. Stockpile soils and aggregates in dedicated stockpiles. Obtain approval of the stockpiled material prior to mixing with cement. Control the moisture content of the stockpiles so that the blended mixture , when tested in accordance with DOTD TR 403, shall be within ±2.0 percent of the optimum moisture content at the time of compaction. Equip storage facilities containing soil or fine aggregate with vibrators that will effectively vibrate the side walls of the feeder, prevent any accumulation of material , and ensure a constant, uniform supply of material to the mixing unit.

301.03.3 Crushed Stone and Recycled Portland Cement

Concrete: Equipment used to mix crushed stone and recycled portland cement concrete shall produce a uniform blend conforming to the requiremen ts elsewhere herein. When using a central mix plant, it shall conform to 301.03.1 .

301.03.3 1 Hauling Equipment: Haul crushed stone and

recycled portland cement concrete in trucks with tight, smooth beds of sufficient size and condition to prevent segregation and the loss of material.

301.03.3 2 Compaction Equipment: Stone and recycled

portland cement concrete compaction equipment shall be designed for the compaction of these materials and may be static or vibratory. Perform finish rolling with static, smooth steel wheel or pneumatic tire rollers. Pneumatic tires shall have smooth trea d, shall be the same size and ply rating, and shall be inflated to a uniform pressure not varying more than ±5 psi between tires. Wheels shall not wobble and shall be aligned such that gaps between tires on one axle are covered by tires of the other axle.

301.03.4 Automatic Finishing Machine: For all Class I base

courses except asphalt concrete, use an approved automatic finishing machine. The approved automatic finishing machine shall be capable of operating from an erected stringline or Global Positioning Syst em (GPS) and laser system, and be capable of automatically controlling grade and cross slope conforming to 502.08.2.2 .

301.04 Storage and Handling of Materials Prior To

MIXING . Stockpiles of materials shall be uniform; separation into material sizes may be required. Equipment and methods for stockpiling shall be such that no segregation will result. Do not allow foreign material to be incorporated into the stockpiled materials . Do not use contaminated materials. Stockpiles shall be of uniform moisture content and well drained. Stockpile soils and aggregates in dedicated stockpiles. Obtain approval of the stockpiled material prior to mixing with cement. Control the moisture content of the stockpiles so that the blended mixture , when tested in accordance with DOTD TR 403, shall be within ±2.0 percent of the optimum moisture content at the time of compaction. Equip storage facilities containing soil or fine aggregate with vibrators that will effectively vibrate the side walls of the feeder, prevent any accumulation of material , and ensure a constant, uniform supply of material to the mixing unit.

301.03.3 Crushed Stone and Recycled Portland Cement

Concrete: Equipment used to mix crushed stone and recycled portland cement concrete shall produce a uniform blend conforming to the requiremen ts elsewhere herein. When using a central mix plant, it shall conform to 301.03.1 .

301.03.3 1 Hauling Equipment: Haul crushed stone and

recycled portland cement concrete in trucks with tight, smooth beds of sufficient size and condition to prevent segregation and the loss of material.

301.03.3 2 Compaction Equipment: Stone and recycled

portland cement concrete compaction equipment shall be designed for the compaction of these materials and may be static or vibratory. Perform finish rolling with static, smooth steel wheel or pneumatic tire rollers. Pneumatic tires shall have smooth trea d, shall be the same size and ply rating, and shall be inflated to a uniform pressure not varying more than ±5 psi between tires. Wheels shall not wobble and shall be aligned such that gaps between tires on one axle are covered by tires of the other axle.

301.03.4 Automatic Finishing Machine: For all Class I base

courses except asphalt concrete, use an approved automatic finishing machine. The approved automatic finishing machine shall be capable of operating from an erected stringline or Global Positioning Syst em (GPS) and laser system, and be capable of automatically controlling grade and cross slope conforming to 502.08.2.2 .

301.04 Storage and Handling of Materials Prior To

MIXING . Stockpiles of materials shall be uniform; separation into material sizes may be required. Equipment and methods for stockpiling shall be such that no segregation will result. Do not allow foreign material to be incorporated into the stockpiled materials . Do not use contaminated materials. Stockpiles shall be of uniform moisture content and well drained. Stockpile soils and aggregates in dedicated stockpiles. Obtain approval of the stockpiled material prior to mixing with cement. Control the moisture content of the stockpiles so that the blended mixture , when tested in accordance with DOTD TR 403, shall be within ±2.0 percent of the optimum moisture content at the time of compaction. Equip storage facilities containing soil or fine aggregate with vibrators that will effectively vibrate the side walls of the feeder, prevent any accumulation of material , and ensure a constant, uniform supply of material to the mixing unit.

1015.08 Temporary Pavement M Arkings.

1015.08.1 Temporary Tape: Temporary tape shall comply with

ASTM D4592, Type I (removable) or Type II (non -removable) an d shall be from the Approved Materials List.

1015.08.2 Painted Stripe: Paint shall be an approved traffic paint

complying with 1015.12 . Glass beads for drop -on applicati on shall comply with 1015.13.

1015.08.3 Temporary Raised Pavement Markings for Asphalt

Surface Treatment: Temporary raised pavement markers for asphalt surface treatment s hall be flexible reflective tabs having a nominal width of 4 inches. The markers shall be yellow with amber reflective area on both sides. The body of the marker shall consist of a base and vertical wall made of polyurethane or other approved material and shall be capable of maintaining a reasonable vertical position after installation. The initial minimum Coefficient of Luminous Intensity at an entrance angle of -4 degrees and an observation angle of 0.2 degrees shall be 230 mcd/lx when measured in accor dance with ASTM E810. The reflective material shall be protected with an easily removable cover of heat resistant material capable of withstanding and protecting the reflective material from the application of asphalt at temperatures exceeding 325°F.

1015.09 RAISED PAVEMENT MARK ERS. Markers shall be either

non-reflectorized or reflectorized, as specified. Markers shall be from the Approved Materials List.

1015.09.1 Non-Reflectorized Markers:

1015.09.1 1 Description: Non-reflectorized markers shall

consist of an acrylonitrile butadiene styrene polymer or other approved material, and shall be approximately 4 x 6 -inches.

1015.09.1 2 Physical Requirements: Markers shall comply

with the compressive strength requirements of ASTM D4280. The color shall be in accordance with the plans and the MUTCD.

1015.09.2 Reflectorized Markers: Reflectorized markers shall

comply with ASTM D4280, Designation H and Designation F. The type and color shall be in accordance with the plans and the MUTCD. The markers shall be either standard having minim um base dimensions of 3 x 3 - inches and a maximum height of 0.80 inches or low profile having

1015.08 Temporary Pavement M Arkings.

1015.08.1 Temporary Tape: Temporary tape shall comply with

ASTM D4592, Type I (removable) or Type II (non -removable) an d shall be from the Approved Materials List.

1015.08.2 Painted Stripe: Paint shall be an approved traffic paint

complying with 1015.12 . Glass beads for drop -on applicati on shall comply with 1015.13.

1015.08.3 Temporary Raised Pavement Markings for Asphalt

Surface Treatment: Temporary raised pavement markers for asphalt surface treatment s hall be flexible reflective tabs having a nominal width of 4 inches. The markers shall be yellow with amber reflective area on both sides. The body of the marker shall consist of a base and vertical wall made of polyurethane or other approved material and shall be capable of maintaining a reasonable vertical position after installation. The initial minimum Coefficient of Luminous Intensity at an entrance angle of -4 degrees and an observation angle of 0.2 degrees shall be 230 mcd/lx when measured in accor dance with ASTM E810. The reflective material shall be protected with an easily removable cover of heat resistant material capable of withstanding and protecting the reflective material from the application of asphalt at temperatures exceeding 325°F.

1015.09 RAISED PAVEMENT MARK ERS. Markers shall be either

non-reflectorized or reflectorized, as specified. Markers shall be from the Approved Materials List.

1015.09.1 Non-Reflectorized Markers:

1015.09.1 1 Description: Non-reflectorized markers shall

consist of an acrylonitrile butadiene styrene polymer or other approved material, and shall be approximately 4 x 6 -inches.

1015.09.1 2 Physical Requirements: Markers shall comply

with the compressive strength requirements of ASTM D4280. The color shall be in accordance with the plans and the MUTCD.

1015.09.2 Reflectorized Markers: Reflectorized markers shall

comply with ASTM D4280, Designation H and Designation F. The type and color shall be in accordance with the plans and the MUTCD. The markers shall be either standard having minim um base dimensions of 3 x 3 - inches and a maximum height of 0.80 inches or low profile having

1015.08 Temporary Pavement M Arkings.

1015.08.1 Temporary Tape: Temporary tape shall comply with

ASTM D4592, Type I (removable) or Type II (non -removable) an d shall be from the Approved Materials List.

1015.08.2 Painted Stripe: Paint shall be an approved traffic paint

complying with 1015.12 . Glass beads for drop -on applicati on shall comply with 1015.13.

1015.08.3 Temporary Raised Pavement Markings for Asphalt

Surface Treatment: Temporary raised pavement markers for asphalt surface treatment s hall be flexible reflective tabs having a nominal width of 4 inches. The markers shall be yellow with amber reflective area on both sides. The body of the marker shall consist of a base and vertical wall made of polyurethane or other approved material and shall be capable of maintaining a reasonable vertical position after installation. The initial minimum Coefficient of Luminous Intensity at an entrance angle of -4 degrees and an observation angle of 0.2 degrees shall be 230 mcd/lx when measured in accor dance with ASTM E810. The reflective material shall be protected with an easily removable cover of heat resistant material capable of withstanding and protecting the reflective material from the application of asphalt at temperatures exceeding 325°F.

1015.09 RAISED PAVEMENT MARK ERS. Markers shall be either

non-reflectorized or reflectorized, as specified. Markers shall be from the Approved Materials List.

1015.09.1 Non-Reflectorized Markers:

1015.09.1 1 Description: Non-reflectorized markers shall

consist of an acrylonitrile butadiene styrene polymer or other approved material, and shall be approximately 4 x 6 -inches.

1015.09.1 2 Physical Requirements: Markers shall comply

with the compressive strength requirements of ASTM D4280. The color shall be in accordance with the plans and the MUTCD.

1015.09.2 Reflectorized Markers: Reflectorized markers shall

comply with ASTM D4280, Designation H and Designation F. The type and color shall be in accordance with the plans and the MUTCD. The markers shall be either standard having minim um base dimensions of 3 x 3 - inches and a maximum height of 0.80 inches or low profile having

1015.08 Temporary Pavement M Arkings.

1015.08.1 Temporary Tape: Temporary tape shall comply with

ASTM D4592, Type I (removable) or Type II (non -removable) an d shall be from the Approved Materials List.

1015.08.2 Painted Stripe: Paint shall be an approved traffic paint

complying with 1015.12 . Glass beads for drop -on applicati on shall comply with 1015.13.

1015.08.3 Temporary Raised Pavement Markings for Asphalt

Surface Treatment: Temporary raised pavement markers for asphalt surface treatment s hall be flexible reflective tabs having a nominal width of 4 inches. The markers shall be yellow with amber reflective area on both sides. The body of the marker shall consist of a base and vertical wall made of polyurethane or other approved material and shall be capable of maintaining a reasonable vertical position after installation. The initial minimum Coefficient of Luminous Intensity at an entrance angle of -4 degrees and an observation angle of 0.2 degrees shall be 230 mcd/lx when measured in accor dance with ASTM E810. The reflective material shall be protected with an easily removable cover of heat resistant material capable of withstanding and protecting the reflective material from the application of asphalt at temperatures exceeding 325°F.

1015.09 RAISED PAVEMENT MARK ERS. Markers shall be either

non-reflectorized or reflectorized, as specified. Markers shall be from the Approved Materials List.

1015.09.1 Non-Reflectorized Markers:

1015.09.1 1 Description: Non-reflectorized markers shall

consist of an acrylonitrile butadiene styrene polymer or other approved material, and shall be approximately 4 x 6 -inches.

1015.09.1 2 Physical Requirements: Markers shall comply

with the compressive strength requirements of ASTM D4280. The color shall be in accordance with the plans and the MUTCD.

1015.09.2 Reflectorized Markers: Reflectorized markers shall

comply with ASTM D4280, Designation H and Designation F. The type and color shall be in accordance with the plans and the MUTCD. The markers shall be either standard having minim um base dimensions of 3 x 3 - inches and a maximum height of 0.80 inches or low profile having minimum base dimensions of 3 x 2 -inches and a maximum height of 0.60 inches.

1015.09.3 Adhesive:

1015.09.3 1 Epoxy Adhesive: Epoxy adhesive shall be Type I

or II epoxy resin system c omplying with 1017.03 .

1015.09.3 2 Bituminous Adhesive: The adhesive shall

conform to ASTM D4280 (any type) for asphalt surfaces and D4280 Type II or Type III for concrete surfaces and shall be from the Approved Materials List.

1015.10 Thermoplastic Paveme Nt Markings.

1015.10.1 Description: This specification covers hot -sprayed, hot -

extruded, and preformed thermoplastic compound for pavement markings on asphalt or portland cement concrete pavement. Thermoplastic marking material applied to asphalt surfaces shall consist of an alkyd based formulation. Thermoplastic marking material applied to portland cement concrete surfaces shall consist of an alkyd based formulation. Non - preformed mater ial shall be manufactured so as to be applied by spray 40 mils thick or extrusion 90 mils thick or greater to pavement in molten form, with internal and surface application of glass spheres, and upon cooling to normal pavement temperature, shall produce an adherent, reflectorized pavement marking of specified thickness and width, capable of resisting deformation. Preformed thermoplastic shall be a minimum of 125 mils thick prior to application. Black thermoplastic pavement markings shall require skid -resist ant filler in lieu of glass beads. For yellow thermoplastic material, the type and amount of yellow pigment shall be at the option of the manufacturer, providing all other requirements of this specification are met. However, the pigment for yellow therm oplastic shall be lead free and shall meet the regulatory level of non - hazardous waste as defined by 40 CFR § 261.24 when tested in accordance with EPA Method 1311, Toxicity Characteristics Leaching Procedures. The manufacturer shall provide certification that the material provided meets these requirements.

1015.10.2 Suitability for Application: Thermoplastic material

shall be a product especially compounded for pavement markings. Markings shall maintain their original dimension and placement and shall not smear or spread under normal traffic at temperatures below 140°F. Markings shall have a uniform cross section. Glass beads shall be minimum base dimensions of 3 x 2 -inches and a maximum height of 0.60 inches.

1015.09.3 Adhesive:

1015.09.3 1 Epoxy Adhesive: Epoxy adhesive shall be Type I

or II epoxy resin system c omplying with 1017.03 .

1015.09.3 2 Bituminous Adhesive: The adhesive shall

conform to ASTM D4280 (any type) for asphalt surfaces and D4280 Type II or Type III for concrete surfaces and shall be from the Approved Materials List.

1015.10 Thermoplastic Paveme Nt Markings.

1015.10.1 Description: This specification covers hot -sprayed, hot -

extruded, and preformed thermoplastic compound for pavement markings on asphalt or portland cement concrete pavement. Thermoplastic marking material applied to asphalt surfaces shall consist of an alkyd based formulation. Thermoplastic marking material applied to portland cement concrete surfaces shall consist of an alkyd based formulation. Non - preformed mater ial shall be manufactured so as to be applied by spray 40 mils thick or extrusion 90 mils thick or greater to pavement in molten form, with internal and surface application of glass spheres, and upon cooling to normal pavement temperature, shall produce an adherent, reflectorized pavement marking of specified thickness and width, capable of resisting deformation. Preformed thermoplastic shall be a minimum of 125 mils thick prior to application. Black thermoplastic pavement markings shall require skid -resist ant filler in lieu of glass beads. For yellow thermoplastic material, the type and amount of yellow pigment shall be at the option of the manufacturer, providing all other requirements of this specification are met. However, the pigment for yellow therm oplastic shall be lead free and shall meet the regulatory level of non - hazardous waste as defined by 40 CFR § 261.24 when tested in accordance with EPA Method 1311, Toxicity Characteristics Leaching Procedures. The manufacturer shall provide certification that the material provided meets these requirements.

1015.10.2 Suitability for Application: Thermoplastic material

shall be a product especially compounded for pavement markings. Markings shall maintain their original dimension and placement and shall not smear or spread under normal traffic at temperatures below 140°F. Markings shall have a uniform cross section. Glass beads shall be minimum base dimensions of 3 x 2 -inches and a maximum height of 0.60 inches.

1015.09.3 Adhesive:

1015.09.3 1 Epoxy Adhesive: Epoxy adhesive shall be Type I

or II epoxy resin system c omplying with 1017.03 .

1015.09.3 2 Bituminous Adhesive: The adhesive shall

conform to ASTM D4280 (any type) for asphalt surfaces and D4280 Type II or Type III for concrete surfaces and shall be from the Approved Materials List.

1015.10 Thermoplastic Paveme Nt Markings.

1015.10.1 Description: This specification covers hot -sprayed, hot -

extruded, and preformed thermoplastic compound for pavement markings on asphalt or portland cement concrete pavement. Thermoplastic marking material applied to asphalt surfaces shall consist of an alkyd based formulation. Thermoplastic marking material applied to portland cement concrete surfaces shall consist of an alkyd based formulation. Non - preformed mater ial shall be manufactured so as to be applied by spray 40 mils thick or extrusion 90 mils thick or greater to pavement in molten form, with internal and surface application of glass spheres, and upon cooling to normal pavement temperature, shall produce an adherent, reflectorized pavement marking of specified thickness and width, capable of resisting deformation. Preformed thermoplastic shall be a minimum of 125 mils thick prior to application. Black thermoplastic pavement markings shall require skid -resist ant filler in lieu of glass beads. For yellow thermoplastic material, the type and amount of yellow pigment shall be at the option of the manufacturer, providing all other requirements of this specification are met. However, the pigment for yellow therm oplastic shall be lead free and shall meet the regulatory level of non - hazardous waste as defined by 40 CFR § 261.24 when tested in accordance with EPA Method 1311, Toxicity Characteristics Leaching Procedures. The manufacturer shall provide certification that the material provided meets these requirements.

1015.10.2 Suitability for Application: Thermoplastic material

shall be a product especially compounded for pavement markings. Markings shall maintain their original dimension and placement and shall not smear or spread under normal traffic at temperatures below 140°F. Markings shall have a uniform cross section. Glass beads shall be minimum base dimensions of 3 x 2 -inches and a maximum height of 0.60 inches.

1015.09.3 Adhesive:

1015.09.3 1 Epoxy Adhesive: Epoxy adhesive shall be Type I

or II epoxy resin system c omplying with 1017.03 .

1015.09.3 2 Bituminous Adhesive: The adhesive shall

conform to ASTM D4280 (any type) for asphalt surfaces and D4280 Type II or Type III for concrete surfaces and shall be from the Approved Materials List.

1015.10 Thermoplastic Paveme Nt Markings.

1015.10.1 Description: This specification covers hot -sprayed, hot -

extruded, and preformed thermoplastic compound for pavement markings on asphalt or portland cement concrete pavement. Thermoplastic marking material applied to asphalt surfaces shall consist of an alkyd based formulation. Thermoplastic marking material applied to portland cement concrete surfaces shall consist of an alkyd based formulation. Non - preformed mater ial shall be manufactured so as to be applied by spray 40 mils thick or extrusion 90 mils thick or greater to pavement in molten form, with internal and surface application of glass spheres, and upon cooling to normal pavement temperature, shall produce an adherent, reflectorized pavement marking of specified thickness and width, capable of resisting deformation. Preformed thermoplastic shall be a minimum of 125 mils thick prior to application. Black thermoplastic pavement markings shall require skid -resist ant filler in lieu of glass beads. For yellow thermoplastic material, the type and amount of yellow pigment shall be at the option of the manufacturer, providing all other requirements of this specification are met. However, the pigment for yellow therm oplastic shall be lead free and shall meet the regulatory level of non - hazardous waste as defined by 40 CFR § 261.24 when tested in accordance with EPA Method 1311, Toxicity Characteristics Leaching Procedures. The manufacturer shall provide certification that the material provided meets these requirements.

1015.10.2 Suitability for Application: Thermoplastic material

shall be a product especially compounded for pavement markings. Markings shall maintain their original dimension and placement and shall not smear or spread under normal traffic at temperatures below 140°F. Markings shall have a uniform cross section. Glass beads shall be minimum base dimensions of 3 x 2 -inches and a maximum height of 0.60 inches.

1015.09.3 Adhesive:

1015.09.3 1 Epoxy Adhesive: Epoxy adhesive shall be Type I

or II epoxy resin system c omplying with 1017.03 .

1015.09.3 2 Bituminous Adhesive: The adhesive shall

conform to ASTM D4280 (any type) for asphalt surfaces and D4280 Type II or Type III for concrete surfaces and shall be from the Approved Materials List.

1015.10 Thermoplastic Paveme Nt Markings.

1015.10.1 Description: This specification covers hot -sprayed, hot -

extruded, and preformed thermoplastic compound for pavement markings on asphalt or portland cement concrete pavement. Thermoplastic marking material applied to asphalt surfaces shall consist of an alkyd based formulation. Thermoplastic marking material applied to portland cement concrete surfaces shall consist of an alkyd based formulation. Non - preformed mater ial shall be manufactured so as to be applied by spray 40 mils thick or extrusion 90 mils thick or greater to pavement in molten form, with internal and surface application of glass spheres, and upon cooling to normal pavement temperature, shall produce an adherent, reflectorized pavement marking of specified thickness and width, capable of resisting deformation. Preformed thermoplastic shall be a minimum of 125 mils thick prior to application. Black thermoplastic pavement markings shall require skid -resist ant filler in lieu of glass beads. For yellow thermoplastic material, the type and amount of yellow pigment shall be at the option of the manufacturer, providing all other requirements of this specification are met. However, the pigment for yellow therm oplastic shall be lead free and shall meet the regulatory level of non - hazardous waste as defined by 40 CFR § 261.24 when tested in accordance with EPA Method 1311, Toxicity Characteristics Leaching Procedures. The manufacturer shall provide certification that the material provided meets these requirements.

1015.10.2 Suitability for Application: Thermoplastic material

shall be a product especially compounded for pavement markings. Markings shall maintain their original dimension and placement and shall not smear or spread under normal traffic at temperatures below 140°F. Markings shall have a uniform cross section. Glass beads shall be minimum base dimensions of 3 x 2 -inches and a maximum height of 0.60 inches.

1015.09.3 Adhesive:

1015.09.3 1 Epoxy Adhesive: Epoxy adhesive shall be Type I

or II epoxy resin system c omplying with 1017.03 .

1015.09.3 2 Bituminous Adhesive: The adhesive shall

conform to ASTM D4280 (any type) for asphalt surfaces and D4280 Type II or Type III for concrete surfaces and shall be from the Approved Materials List.

1015.10 Thermoplastic Paveme Nt Markings.

1015.10.1 Description: This specification covers hot -sprayed, hot -

extruded, and preformed thermoplastic compound for pavement markings on asphalt or portland cement concrete pavement. Thermoplastic marking material applied to asphalt surfaces shall consist of an alkyd based formulation. Thermoplastic marking material applied to portland cement concrete surfaces shall consist of an alkyd based formulation. Non - preformed mater ial shall be manufactured so as to be applied by spray 40 mils thick or extrusion 90 mils thick or greater to pavement in molten form, with internal and surface application of glass spheres, and upon cooling to normal pavement temperature, shall produce an adherent, reflectorized pavement marking of specified thickness and width, capable of resisting deformation. Preformed thermoplastic shall be a minimum of 125 mils thick prior to application. Black thermoplastic pavement markings shall require skid -resist ant filler in lieu of glass beads. For yellow thermoplastic material, the type and amount of yellow pigment shall be at the option of the manufacturer, providing all other requirements of this specification are met. However, the pigment for yellow therm oplastic shall be lead free and shall meet the regulatory level of non - hazardous waste as defined by 40 CFR § 261.24 when tested in accordance with EPA Method 1311, Toxicity Characteristics Leaching Procedures. The manufacturer shall provide certification that the material provided meets these requirements.

1015.10.2 Suitability for Application: Thermoplastic material

shall be a product especially compounded for pavement markings. Markings shall maintain their original dimension and placement and shall not smear or spread under normal traffic at temperatures below 140°F. Markings shall have a uniform cross section. Glass beads shall be minimum base dimensions of 3 x 2 -inches and a maximum height of 0.60 inches.

1015.09.3 Adhesive:

1015.09.3 1 Epoxy Adhesive: Epoxy adhesive shall be Type I

or II epoxy resin system c omplying with 1017.03 .

1015.09.3 2 Bituminous Adhesive: The adhesive shall

conform to ASTM D4280 (any type) for asphalt surfaces and D4280 Type II or Type III for concrete surfaces and shall be from the Approved Materials List.

1015.10 Thermoplastic Paveme Nt Markings.

1015.10.1 Description: This specification covers hot -sprayed, hot -

extruded, and preformed thermoplastic compound for pavement markings on asphalt or portland cement concrete pavement. Thermoplastic marking material applied to asphalt surfaces shall consist of an alkyd based formulation. Thermoplastic marking material applied to portland cement concrete surfaces shall consist of an alkyd based formulation. Non - preformed mater ial shall be manufactured so as to be applied by spray 40 mils thick or extrusion 90 mils thick or greater to pavement in molten form, with internal and surface application of glass spheres, and upon cooling to normal pavement temperature, shall produce an adherent, reflectorized pavement marking of specified thickness and width, capable of resisting deformation. Preformed thermoplastic shall be a minimum of 125 mils thick prior to application. Black thermoplastic pavement markings shall require skid -resist ant filler in lieu of glass beads. For yellow thermoplastic material, the type and amount of yellow pigment shall be at the option of the manufacturer, providing all other requirements of this specification are met. However, the pigment for yellow therm oplastic shall be lead free and shall meet the regulatory level of non - hazardous waste as defined by 40 CFR § 261.24 when tested in accordance with EPA Method 1311, Toxicity Characteristics Leaching Procedures. The manufacturer shall provide certification that the material provided meets these requirements.

1015.10.2 Suitability for Application: Thermoplastic material

shall be a product especially compounded for pavement markings. Markings shall maintain their original dimension and placement and shall not smear or spread under normal traffic at temperatures below 140°F. Markings shall have a uniform cross section. Glass beads shall be uniformly distributed to ensure that the full width of the line is visible at night. Pigment shall be evenly dispersed throughou t the material thickness. The exposed surface shall be free from tack and shall not be slippery when wet. Material shall not lift from pavement in freezing weather. Cold ductility of material shall be such as to permit normal movement with the pavement surfaced without chipping or cracking.

1015.10.3 Standard (Flat) 90 mil or Greater Thermoplastic

Pavement Markings: White and yellow thermoplastic shall be from the Approved Materials List and comply with AASHTO M 249 as modified herein. All other colors are not required to be from the Approved Materials List.

1015.10.3 1 Color:

1015.10.3 1.1 Laboratory Performance: The yellow

thermoplastic shall comply with the requirements of Table 1015 -7 when tested in accordance with ASTM E1349. Table 1015 -7 Color Specification Limits (Daytime) Color 1 2 3 4 X y x y x y x y Yellow 0.4756 0.4517 0.4985 0.4779 0.5222 0.4542 0.4919 0.4354 (The four pairs of chromaticity coordinates determine the acceptable color in terms of the CIE 1931 Standard Colorimetric System measured with Standard 2° Observer and Standard Illuminant D65.)

1015.10.3 1.2 Field Performance: The Department may

take initial daytime color and luminance factor (Y%) readings, as required by the engineer, within 7 to 30 days after installation to verify compliance with ASTM D6628.

1015.10.3 2 Whiteness Index: White thermoplastic shall have a

minimum whiteness index of 40 when tested according to ASTM E313.

1015.10.3 3 Retroreflectivity: All retroreflectivity readings

shall be measured with a geometry of 1.05 degrees observation angle and

301.03.3 Crushed Stone and Recycled Portland Cement

Concrete: Equipment used to mix crushed stone and recycled portland cement concrete shall produce a uniform blend conforming to the requiremen ts elsewhere herein. When using a central mix plant, it shall conform to 301.03.1 .

301.03.3 1 Hauling Equipment: Haul crushed stone and

recycled portland cement concrete in trucks with tight, smooth beds of sufficient size and condition to prevent segregation and the loss of material.

301.03.3 2 Compaction Equipment: Stone and recycled

portland cement concrete compaction equipment shall be designed for the compaction of these materials and may be static or vibratory. Perform finish rolling with static, smooth steel wheel or pneumatic tire rollers. Pneumatic tires shall have smooth trea d, shall be the same size and ply rating, and shall be inflated to a uniform pressure not varying more than ±5 psi between tires. Wheels shall not wobble and shall be aligned such that gaps between tires on one axle are covered by tires of the other axle.

301.03.4 Automatic Finishing Machine: For all Class I base

courses except asphalt concrete, use an approved automatic finishing machine. The approved automatic finishing machine shall be capable of operating from an erected stringline or Global Positioning Syst em (GPS) and laser system, and be capable of automatically controlling grade and cross slope conforming to 502.08.2.2 .

301.04 Storage and Handling of Materials Prior To

MIXING . Stockpiles of materials shall be uniform; separation into material sizes may be required. Equipment and methods for stockpiling shall be such that no segregation will result. Do not allow foreign material to be incorporated into the stockpiled materials . Do not use contaminated materials. Stockpiles shall be of uniform moisture content and well drained. Stockpile soils and aggregates in dedicated stockpiles. Obtain approval of the stockpiled material prior to mixing with cement. Control the moisture content of the stockpiles so that the blended mixture , when tested in accordance with DOTD TR 403, shall be within ±2.0 percent of the optimum moisture content at the time of compaction. Equip storage facilities containing soil or fine aggregate with vibrators that will effectively vibrate the side walls of the feeder, prevent any accumulation of material , and ensure a constant, uniform supply of material to the mixing unit.

301.03.3 Crushed Stone and Recycled Portland Cement

Concrete: Equipment used to mix crushed stone and recycled portland cement concrete shall produce a uniform blend conforming to the requiremen ts elsewhere herein. When using a central mix plant, it shall conform to 301.03.1 .

301.03.3 1 Hauling Equipment: Haul crushed stone and

recycled portland cement concrete in trucks with tight, smooth beds of sufficient size and condition to prevent segregation and the loss of material.

301.03.3 2 Compaction Equipment: Stone and recycled

portland cement concrete compaction equipment shall be designed for the compaction of these materials and may be static or vibratory. Perform finish rolling with static, smooth steel wheel or pneumatic tire rollers. Pneumatic tires shall have smooth trea d, shall be the same size and ply rating, and shall be inflated to a uniform pressure not varying more than ±5 psi between tires. Wheels shall not wobble and shall be aligned such that gaps between tires on one axle are covered by tires of the other axle.

301.03.4 Automatic Finishing Machine: For all Class I base

courses except asphalt concrete, use an approved automatic finishing machine. The approved automatic finishing machine shall be capable of operating from an erected stringline or Global Positioning Syst em (GPS) and laser system, and be capable of automatically controlling grade and cross slope conforming to 502.08.2.2 .

301.04 Storage and Handling of Materials Prior To

MIXING . Stockpiles of materials shall be uniform; separation into material sizes may be required. Equipment and methods for stockpiling shall be such that no segregation will result. Do not allow foreign material to be incorporated into the stockpiled materials . Do not use contaminated materials. Stockpiles shall be of uniform moisture content and well drained. Stockpile soils and aggregates in dedicated stockpiles. Obtain approval of the stockpiled material prior to mixing with cement. Control the moisture content of the stockpiles so that the blended mixture , when tested in accordance with DOTD TR 403, shall be within ±2.0 percent of the optimum moisture content at the time of compaction. Equip storage facilities containing soil or fine aggregate with vibrators that will effectively vibrate the side walls of the feeder, prevent any accumulation of material , and ensure a constant, uniform supply of material to the mixing unit.

301.04.1 Storage of Cement: Transport cement in watertight

conveyances and store in watertight buildings, silos, or other approved facilities to protect the cement from dampness or water intrusion. Cement that is contaminated, partially set, or contains lumps of caked cement will be rejected. Cement shall be certified by the manufacturer in accordance with the Department’s current procedure. Keep accurate records of cement deliveries and its use. Copies of these records shall be supplied to the engineer as required.

301.04.2 Soils for Soil Cement: Soils for soil cement shall be of

one or more components, each meeting the requirements of 301.02.1 .

301.04.3 Asphalt Concrete: Store and handle asphalt concrete in

accordance with Section 502 .

301.04.4 Crushed Ston e and Recycled Portland Cement

Concrete: Sample, test, and obtain approval of crushed stone and recycled portland cement concrete base courses from dedicated stockpiles prior to placement on the subgrade.

301.05 GENERAL CONSTRUCTION REQUIREMENTS. Place

Class I base courses on a subgrade layer prepared in accordance with Section 305 . Finished lift thickness shall be 9 inches maximum. The department may allow single l ift construction for depths over 9 inches up to 12 inches based on a rolling pattern that obtains the required density.

301.05.1 Cement Stabilized Base Course : Mix all cement

stabilized base courses in a central mix plant conforming to 301.03 . Determine the percentage of cement for soil cement in accordance with DOTD TR 432 prior to mixing. Obtain samples for determination of the percent cement from material in stock p iles. Depending on the type of cement and soil or soil -aggregate to be used, normal testing time to determine suitability of the soil and the required cement content may require up to 21 calendar days.

301.05.2 Asphalt Concrete: Construct asphalt concrete base c ourse

in accordance with Section 502 . Construct the treated layer under asphalt concrete base course in accordance with Section 305 .

301.05.3 Crushed Stone, Recycled Portland Cement

Concrete, and Blended Calcium Sulfate: Do not permit crushed stone, recycled portland cement concrete, and blended calcium sulfate base

301.04.1 Storage of Cement: Transport cement in watertight

conveyances and store in watertight buildings, silos, or other approved facilities to protect the cement from dampness or water intrusion. Cement that is contaminated, partially set, or contains lumps of caked cement will be rejected. Cement shall be certified by the manufacturer in accordance with the Department’s current procedure. Keep accurate records of cement deliveries and its use. Copies of these records shall be supplied to the engineer as required.

301.04.2 Soils for Soil Cement: Soils for soil cement shall be of

one or more components, each meeting the requirements of 301.02.1 .

301.04.3 Asphalt Concrete: Store and handle asphalt concrete in

accordance with Section 502 .

301.04.4 Crushed Ston e and Recycled Portland Cement

Concrete: Sample, test, and obtain approval of crushed stone and recycled portland cement concrete base courses from dedicated stockpiles prior to placement on the subgrade.

301.05 GENERAL CONSTRUCTION REQUIREMENTS. Place

Class I base courses on a subgrade layer prepared in accordance with Section 305 . Finished lift thickness shall be 9 inches maximum. The department may allow single l ift construction for depths over 9 inches up to 12 inches based on a rolling pattern that obtains the required density.

301.05.1 Cement Stabilized Base Course : Mix all cement

stabilized base courses in a central mix plant conforming to 301.03 . Determine the percentage of cement for soil cement in accordance with DOTD TR 432 prior to mixing. Obtain samples for determination of the percent cement from material in stock p iles. Depending on the type of cement and soil or soil -aggregate to be used, normal testing time to determine suitability of the soil and the required cement content may require up to 21 calendar days.

301.05.2 Asphalt Concrete: Construct asphalt concrete base c ourse

in accordance with Section 502 . Construct the treated layer under asphalt concrete base course in accordance with Section 305 .

301.05.3 Crushed Stone, Recycled Portland Cement

Concrete, and Blended Calcium Sulfate: Do not permit crushed stone, recycled portland cement concrete, and blended calcium sulfate base

301.04.1 Storage of Cement: Transport cement in watertight

conveyances and store in watertight buildings, silos, or other approved facilities to protect the cement from dampness or water intrusion. Cement that is contaminated, partially set, or contains lumps of caked cement will be rejected. Cement shall be certified by the manufacturer in accordance with the Department’s current procedure. Keep accurate records of cement deliveries and its use. Copies of these records shall be supplied to the engineer as required.

301.04.2 Soils for Soil Cement: Soils for soil cement shall be of

one or more components, each meeting the requirements of 301.02.1 .

301.04.3 Asphalt Concrete: Store and handle asphalt concrete in

accordance with Section 502 .

301.04.4 Crushed Ston e and Recycled Portland Cement

Concrete: Sample, test, and obtain approval of crushed stone and recycled portland cement concrete base courses from dedicated stockpiles prior to placement on the subgrade.

301.05 GENERAL CONSTRUCTION REQUIREMENTS. Place

Class I base courses on a subgrade layer prepared in accordance with Section 305 . Finished lift thickness shall be 9 inches maximum. The department may allow single l ift construction for depths over 9 inches up to 12 inches based on a rolling pattern that obtains the required density.

301.05.1 Cement Stabilized Base Course : Mix all cement

stabilized base courses in a central mix plant conforming to 301.03 . Determine the percentage of cement for soil cement in accordance with DOTD TR 432 prior to mixing. Obtain samples for determination of the percent cement from material in stock p iles. Depending on the type of cement and soil or soil -aggregate to be used, normal testing time to determine suitability of the soil and the required cement content may require up to 21 calendar days.

301.05.2 Asphalt Concrete: Construct asphalt concrete base c ourse

in accordance with Section 502 . Construct the treated layer under asphalt concrete base course in accordance with Section 305 .

301.05.3 Crushed Stone, Recycled Portland Cement

Concrete, and Blended Calcium Sulfate: Do not permit crushed stone, recycled portland cement concrete, and blended calcium sulfate base

301.04.1 Storage of Cement: Transport cement in watertight

conveyances and store in watertight buildings, silos, or other approved facilities to protect the cement from dampness or water intrusion. Cement that is contaminated, partially set, or contains lumps of caked cement will be rejected. Cement shall be certified by the manufacturer in accordance with the Department’s current procedure. Keep accurate records of cement deliveries and its use. Copies of these records shall be supplied to the engineer as required.

301.04.2 Soils for Soil Cement: Soils for soil cement shall be of

one or more components, each meeting the requirements of 301.02.1 .

301.04.3 Asphalt Concrete: Store and handle asphalt concrete in

accordance with Section 502 .

301.04.4 Crushed Ston e and Recycled Portland Cement

Concrete: Sample, test, and obtain approval of crushed stone and recycled portland cement concrete base courses from dedicated stockpiles prior to placement on the subgrade.

301.05 GENERAL CONSTRUCTION REQUIREMENTS. Place

Class I base courses on a subgrade layer prepared in accordance with Section 305 . Finished lift thickness shall be 9 inches maximum. The department may allow single l ift construction for depths over 9 inches up to 12 inches based on a rolling pattern that obtains the required density.

301.05.1 Cement Stabilized Base Course : Mix all cement

stabilized base courses in a central mix plant conforming to 301.03 . Determine the percentage of cement for soil cement in accordance with DOTD TR 432 prior to mixing. Obtain samples for determination of the percent cement from material in stock p iles. Depending on the type of cement and soil or soil -aggregate to be used, normal testing time to determine suitability of the soil and the required cement content may require up to 21 calendar days.

301.05.2 Asphalt Concrete: Construct asphalt concrete base c ourse

in accordance with Section 502 . Construct the treated layer under asphalt concrete base course in accordance with Section 305 .

301.05.3 Crushed Stone, Recycled Portland Cement

Concrete, and Blended Calcium Sulfate: Do not permit crushed stone, recycled portland cement concrete, and blended calcium sulfate base

301.04.1 Storage of Cement: Transport cement in watertight

conveyances and store in watertight buildings, silos, or other approved facilities to protect the cement from dampness or water intrusion. Cement that is contaminated, partially set, or contains lumps of caked cement will be rejected. Cement shall be certified by the manufacturer in accordance with the Department’s current procedure. Keep accurate records of cement deliveries and its use. Copies of these records shall be supplied to the engineer as required.

301.04.2 Soils for Soil Cement: Soils for soil cement shall be of

one or more components, each meeting the requirements of 301.02.1 .

301.04.3 Asphalt Concrete: Store and handle asphalt concrete in

accordance with Section 502 .

301.04.4 Crushed Ston e and Recycled Portland Cement

Concrete: Sample, test, and obtain approval of crushed stone and recycled portland cement concrete base courses from dedicated stockpiles prior to placement on the subgrade.

301.05 GENERAL CONSTRUCTION REQUIREMENTS. Place

Class I base courses on a subgrade layer prepared in accordance with Section 305 . Finished lift thickness shall be 9 inches maximum. The department may allow single l ift construction for depths over 9 inches up to 12 inches based on a rolling pattern that obtains the required density.

301.05.1 Cement Stabilized Base Course : Mix all cement

stabilized base courses in a central mix plant conforming to 301.03 . Determine the percentage of cement for soil cement in accordance with DOTD TR 432 prior to mixing. Obtain samples for determination of the percent cement from material in stock p iles. Depending on the type of cement and soil or soil -aggregate to be used, normal testing time to determine suitability of the soil and the required cement content may require up to 21 calendar days.

301.05.2 Asphalt Concrete: Construct asphalt concrete base c ourse

in accordance with Section 502 . Construct the treated layer under asphalt concrete base course in accordance with Section 305 .

301.05.3 Crushed Stone, Recycled Portland Cement

Concrete, and Blended Calcium Sulfate: Do not permit crushed stone, recycled portland cement concrete, and blended calcium sulfate base

301.04.1 Storage of Cement: Transport cement in watertight

conveyances and store in watertight buildings, silos, or other approved facilities to protect the cement from dampness or water intrusion. Cement that is contaminated, partially set, or contains lumps of caked cement will be rejected. Cement shall be certified by the manufacturer in accordance with the Department’s current procedure. Keep accurate records of cement deliveries and its use. Copies of these records shall be supplied to the engineer as required.

301.04.2 Soils for Soil Cement: Soils for soil cement shall be of

one or more components, each meeting the requirements of 301.02.1 .

301.04.3 Asphalt Concrete: Store and handle asphalt concrete in

accordance with Section 502 .

301.04.4 Crushed Ston e and Recycled Portland Cement

Concrete: Sample, test, and obtain approval of crushed stone and recycled portland cement concrete base courses from dedicated stockpiles prior to placement on the subgrade.

301.05 GENERAL CONSTRUCTION REQUIREMENTS. Place

Class I base courses on a subgrade layer prepared in accordance with Section 305 . Finished lift thickness shall be 9 inches maximum. The department may allow single l ift construction for depths over 9 inches up to 12 inches based on a rolling pattern that obtains the required density.

301.05.1 Cement Stabilized Base Course : Mix all cement

stabilized base courses in a central mix plant conforming to 301.03 . Determine the percentage of cement for soil cement in accordance with DOTD TR 432 prior to mixing. Obtain samples for determination of the percent cement from material in stock p iles. Depending on the type of cement and soil or soil -aggregate to be used, normal testing time to determine suitability of the soil and the required cement content may require up to 21 calendar days.

301.05.2 Asphalt Concrete: Construct asphalt concrete base c ourse

in accordance with Section 502 . Construct the treated layer under asphalt concrete base course in accordance with Section 305 .

301.05.3 Crushed Stone, Recycled Portland Cement

Concrete, and Blended Calcium Sulfate: Do not permit crushed stone, recycled portland cement concrete, and blended calcium sulfate base

301.04.1 Storage of Cement: Transport cement in watertight

conveyances and store in watertight buildings, silos, or other approved facilities to protect the cement from dampness or water intrusion. Cement that is contaminated, partially set, or contains lumps of caked cement will be rejected. Cement shall be certified by the manufacturer in accordance with the Department’s current procedure. Keep accurate records of cement deliveries and its use. Copies of these records shall be supplied to the engineer as required.

301.04.2 Soils for Soil Cement: Soils for soil cement shall be of

one or more components, each meeting the requirements of 301.02.1 .

301.04.3 Asphalt Concrete: Store and handle asphalt concrete in

accordance with Section 502 .

301.04.4 Crushed Ston e and Recycled Portland Cement

Concrete: Sample, test, and obtain approval of crushed stone and recycled portland cement concrete base courses from dedicated stockpiles prior to placement on the subgrade.

301.05 GENERAL CONSTRUCTION REQUIREMENTS. Place

Class I base courses on a subgrade layer prepared in accordance with Section 305 . Finished lift thickness shall be 9 inches maximum. The department may allow single l ift construction for depths over 9 inches up to 12 inches based on a rolling pattern that obtains the required density.

301.05.1 Cement Stabilized Base Course : Mix all cement

stabilized base courses in a central mix plant conforming to 301.03 . Determine the percentage of cement for soil cement in accordance with DOTD TR 432 prior to mixing. Obtain samples for determination of the percent cement from material in stock p iles. Depending on the type of cement and soil or soil -aggregate to be used, normal testing time to determine suitability of the soil and the required cement content may require up to 21 calendar days.

301.05.2 Asphalt Concrete: Construct asphalt concrete base c ourse

in accordance with Section 502 . Construct the treated layer under asphalt concrete base course in accordance with Section 305 .

301.05.3 Crushed Stone, Recycled Portland Cement

Concrete, and Blended Calcium Sulfate: Do not permit crushed stone, recycled portland cement concrete, and blended calcium sulfate base

301.04.1 Storage of Cement: Transport cement in watertight

conveyances and store in watertight buildings, silos, or other approved facilities to protect the cement from dampness or water intrusion. Cement that is contaminated, partially set, or contains lumps of caked cement will be rejected. Cement shall be certified by the manufacturer in accordance with the Department’s current procedure. Keep accurate records of cement deliveries and its use. Copies of these records shall be supplied to the engineer as required.

301.04.2 Soils for Soil Cement: Soils for soil cement shall be of

one or more components, each meeting the requirements of 301.02.1 .

301.04.3 Asphalt Concrete: Store and handle asphalt concrete in

accordance with Section 502 .

301.04.4 Crushed Ston e and Recycled Portland Cement

Concrete: Sample, test, and obtain approval of crushed stone and recycled portland cement concrete base courses from dedicated stockpiles prior to placement on the subgrade.

301.05 GENERAL CONSTRUCTION REQUIREMENTS. Place

Class I base courses on a subgrade layer prepared in accordance with Section 305 . Finished lift thickness shall be 9 inches maximum. The department may allow single l ift construction for depths over 9 inches up to 12 inches based on a rolling pattern that obtains the required density.

301.05.1 Cement Stabilized Base Course : Mix all cement

stabilized base courses in a central mix plant conforming to 301.03 . Determine the percentage of cement for soil cement in accordance with DOTD TR 432 prior to mixing. Obtain samples for determination of the percent cement from material in stock p iles. Depending on the type of cement and soil or soil -aggregate to be used, normal testing time to determine suitability of the soil and the required cement content may require up to 21 calendar days.

301.05.2 Asphalt Concrete: Construct asphalt concrete base c ourse

in accordance with Section 502 . Construct the treated layer under asphalt concrete base course in accordance with Section 305 .

301.05.3 Crushed Stone, Recycled Portland Cement

Concrete, and Blended Calcium Sulfate: Do not permit crushed stone, recycled portland cement concrete, and blended calcium sulfate base

301.04.1 Storage of Cement: Transport cement in watertight

conveyances and store in watertight buildings, silos, or other approved facilities to protect the cement from dampness or water intrusion. Cement that is contaminated, partially set, or contains lumps of caked cement will be rejected. Cement shall be certified by the manufacturer in accordance with the Department’s current procedure. Keep accurate records of cement deliveries and its use. Copies of these records shall be supplied to the engineer as required.

301.04.2 Soils for Soil Cement: Soils for soil cement shall be of

one or more components, each meeting the requirements of 301.02.1 .

301.04.3 Asphalt Concrete: Store and handle asphalt concrete in

accordance with Section 502 .

301.04.4 Crushed Ston e and Recycled Portland Cement

Concrete: Sample, test, and obtain approval of crushed stone and recycled portland cement concrete base courses from dedicated stockpiles prior to placement on the subgrade.

301.05 GENERAL CONSTRUCTION REQUIREMENTS. Place

Class I base courses on a subgrade layer prepared in accordance with Section 305 . Finished lift thickness shall be 9 inches maximum. The department may allow single l ift construction for depths over 9 inches up to 12 inches based on a rolling pattern that obtains the required density.

301.05.1 Cement Stabilized Base Course : Mix all cement

stabilized base courses in a central mix plant conforming to 301.03 . Determine the percentage of cement for soil cement in accordance with DOTD TR 432 prior to mixing. Obtain samples for determination of the percent cement from material in stock p iles. Depending on the type of cement and soil or soil -aggregate to be used, normal testing time to determine suitability of the soil and the required cement content may require up to 21 calendar days.

301.05.2 Asphalt Concrete: Construct asphalt concrete base c ourse

in accordance with Section 502 . Construct the treated layer under asphalt concrete base course in accordance with Section 305 .

301.05.3 Crushed Stone, Recycled Portland Cement

Concrete, and Blended Calcium Sulfate: Do not permit crushed stone, recycled portland cement concrete, and blended calcium sulfate base courses to segre gate during construction. Do not allow water added for facilitating compaction to cause moisture damage to the subgrade layer. Do not use blended calcium sulfate in areas needed to facilitate traffic control. Do not place blended calcium sulfate within 10 feet of metal drainage structures. The contractor will be allowed to substitute any untreated Class I base course material listed in 301.01 . Use flowable fill under Section 710 , or other approv ed backfill material in Section 701 to backfill the drainage structure.

301.06 MIXING OF SOIL CEMENT. Mix soil cement materials in a

central mix plant by either batch or continuous mixing process. Soils, aggregates, additives, and water may be proportioned by either weight or volume. Calibrate the plant by weight and equip with a means to readily verify the quantity of each component. The time and points at which introducing each component into the mixing process must be approved. Combine and mix the components to produce a uniform, well -blended mixture. The total quantity of materials introduced into the mixing unit shall not exceed the approved capacity of the mixer. When using a continuous mix process, draw the soils and aggregates from the storage area by a feeder or feeders that continuously supply the correct amount of soil or aggregate in proportion to the cement. Arrange the soil and aggregate storage areas or feed bins so that the proportion of each size can be separately adjusted if using more than one size . Blend individual aggregates and soils within 2 percent of the individual weight of that component. The total weight of aggregate and soils shall be within 1 percent of the required weight of the total material. Incorporate cement within 1.0 percent of the required weight of cement. Determine optimum moisture of the mixture in accordance with DOTD TR 415 or TR 418. Do not allow the percentage of moisture in the mixture, based on dry weight, to vary from optimum moisture by more than ±2.0 percent at the time of compaction. Control moisture content at the time of mixing so that these tolerances are met. When these tolerances are not met and satisfactory control adjustments are not being made, discontinue operations until proper adjustments and uniform operations are established. courses to segre gate during construction. Do not allow water added for facilitating compaction to cause moisture damage to the subgrade layer. Do not use blended calcium sulfate in areas needed to facilitate traffic control. Do not place blended calcium sulfate within 10 feet of metal drainage structures. The contractor will be allowed to substitute any untreated Class I base course material listed in 301.01 . Use flowable fill under Section 710 , or other approv ed backfill material in Section 701 to backfill the drainage structure.

301.06 MIXING OF SOIL CEMENT. Mix soil cement materials in a

central mix plant by either batch or continuous mixing process. Soils, aggregates, additives, and water may be proportioned by either weight or volume. Calibrate the plant by weight and equip with a means to readily verify the quantity of each component. The time and points at which introducing each component into the mixing process must be approved. Combine and mix the components to produce a uniform, well -blended mixture. The total quantity of materials introduced into the mixing unit shall not exceed the approved capacity of the mixer. When using a continuous mix process, draw the soils and aggregates from the storage area by a feeder or feeders that continuously supply the correct amount of soil or aggregate in proportion to the cement. Arrange the soil and aggregate storage areas or feed bins so that the proportion of each size can be separately adjusted if using more than one size . Blend individual aggregates and soils within 2 percent of the individual weight of that component. The total weight of aggregate and soils shall be within 1 percent of the required weight of the total material. Incorporate cement within 1.0 percent of the required weight of cement. Determine optimum moisture of the mixture in accordance with DOTD TR 415 or TR 418. Do not allow the percentage of moisture in the mixture, based on dry weight, to vary from optimum moisture by more than ±2.0 percent at the time of compaction. Control moisture content at the time of mixing so that these tolerances are met. When these tolerances are not met and satisfactory control adjustments are not being made, discontinue operations until proper adjustments and uniform operations are established.

301.07 QUALITY CONTROL OF PLANT OPERATIONS. Provide a

Certified Soil and Base Course Technician at the plant at all times when the plant is producing material for the Department. The Certified Soil and Base Course Technician shall be capable of conducting any test or analysis necessary to put the plant into operation and producing cement stabilized mixtures conforming to the specifications. Do not begin daily plant operations without the Certified Soil and Base Course Technician present. The Soil and Base Course Technician certification will be awarded by the Department upon satisfactory completion of the Department’s requirements.

301.07.1 Soil Cement: Implement and maintain quality control of

materials during handling, storing, blending, mixing, and transport. Adjust equipment to provide the approved percent of each component in the mixture at optimum moisture content. Provide suitable equipment for the determination of moisture co ntent, gradation, proper pulverization, and proper combination of components as required. Build and maintain stockpiles of soils and aggregates in accordance with

301.04 and perform testing as necessary to ensure that materials delivered to

the plant site meet the Department’ s specifications prior to requesting acceptance sampling and testing. Maintain the quality of materials placed in dedicated stockpiles already approved for use. When inspection by the Department indicates contamination or segregation of dedicated stockpiles, the affected materials will be rejected. Remove the rejected materials from the dedicated stockpile. Materials shall be sampled, tested, and approved by the Department prior to inclusion in an approved dedicated stockpile. Incorporate water into the mixing chamber through a multi nozzle spray bar capable of spraying water uniformly, leaving no wet or dry areas. Add water after mix ing soils, soil aggregates, and cement.

301.07 QUALITY CONTROL OF PLANT OPERATIONS. Provide a

Certified Soil and Base Course Technician at the plant at all times when the plant is producing material for the Department. The Certified Soil and Base Course Technician shall be capable of conducting any test or analysis necessary to put the plant into operation and producing cement stabilized mixtures conforming to the specifications. Do not begin daily plant operations without the Certified Soil and Base Course Technician present. The Soil and Base Course Technician certification will be awarded by the Department upon satisfactory completion of the Department’s requirements.

301.07.1 Soil Cement: Implement and maintain quality control of

materials during handling, storing, blending, mixing, and transport. Adjust equipment to provide the approved percent of each component in the mixture at optimum moisture content. Provide suitable equipment for the determination of moisture co ntent, gradation, proper pulverization, and proper combination of components as required. Build and maintain stockpiles of soils and aggregates in accordance with

301.04 and perform testing as necessary to ensure that materials delivered to

the plant site meet the Department’ s specifications prior to requesting acceptance sampling and testing. Maintain the quality of materials placed in dedicated stockpiles already approved for use. When inspection by the Department indicates contamination or segregation of dedicated stockpiles, the affected materials will be rejected. Remove the rejected materials from the dedicated stockpile. Materials shall be sampled, tested, and approved by the Department prior to inclusion in an approved dedicated stockpile. Incorporate water into the mixing chamber through a multi nozzle spray bar capable of spraying water uniformly, leaving no wet or dry areas. Add water after mix ing soils, soil aggregates, and cement.

301.07 QUALITY CONTROL OF PLANT OPERATIONS. Provide a

Certified Soil and Base Course Technician at the plant at all times when the plant is producing material for the Department. The Certified Soil and Base Course Technician shall be capable of conducting any test or analysis necessary to put the plant into operation and producing cement stabilized mixtures conforming to the specifications. Do not begin daily plant operations without the Certified Soil and Base Course Technician present. The Soil and Base Course Technician certification will be awarded by the Department upon satisfactory completion of the Department’s requirements.

301.07.1 Soil Cement: Implement and maintain quality control of

materials during handling, storing, blending, mixing, and transport. Adjust equipment to provide the approved percent of each component in the mixture at optimum moisture content. Provide suitable equipment for the determination of moisture co ntent, gradation, proper pulverization, and proper combination of components as required. Build and maintain stockpiles of soils and aggregates in accordance with

301.04 and perform testing as necessary to ensure that materials delivered to

the plant site meet the Department’ s specifications prior to requesting acceptance sampling and testing. Maintain the quality of materials placed in dedicated stockpiles already approved for use. When inspection by the Department indicates contamination or segregation of dedicated stockpiles, the affected materials will be rejected. Remove the rejected materials from the dedicated stockpile. Materials shall be sampled, tested, and approved by the Department prior to inclusion in an approved dedicated stockpile. Incorporate water into the mixing chamber through a multi nozzle spray bar capable of spraying water uniformly, leaving no wet or dry areas. Add water after mix ing soils, soil aggregates, and cement. The contractor’s Certified Soil and Base Course Technician shall continually monitor plant operations to ensure that systems function properly and that the proportions of materials are correct. At the beginning of e ach day’s operation, check the percent cement being incorporated into the mixture, and then against the plant’s print -out of cumulative totals every two hours. The contractor’s Certified Soil and Base Course Technician shall test for moisture content of t he soil or aggregate components in accordance with DOTD TR 403 at the beginning of each day’s operations and at least twice per day during continuous operation. The contractor’s Certified Soil and Base Course Technician shall test the moisture content of the mixture including the cement, as needed, to control the finished product within specification requirements. When specifying a composite gradation for the soil or aggregate material, check the gradation at least twice per day in accordance with DOTD TR 112 and TR 113. Document tests in accordance with the Department’s current procedures. The contractor’s Certified Soil and Base Course Technician shall check the percent pulverization in accordance with DOTD TR 431 at least twice per day. At least 80 per cent shall pass the No. 4 sieve. When any quality control test does not meet the applicable specifications, make immediate corrections and notify Department personnel of the change, or otherwise the operations shall be discontinued.

301.07.2 Asphalt Concrete: Asphalt concrete plant operations

shall conform to Section 502 .

301.08 Loading, Transporting, and Placing On

SUBGRADE. Do not allow base course materials to segregate d uring loading. Cover soil cement mixtures immediately with an approved waterproof cover to prevent loss of moisture, fines, or exposure to the The contractor’s Certified Soil and Base Course Technician shall continually monitor plant operations to ensure that systems function properly and that the proportions of materials are correct. At the beginning of e ach day’s operation, check the percent cement being incorporated into the mixture, and then against the plant’s print -out of cumulative totals every two hours. The contractor’s Certified Soil and Base Course Technician shall test for moisture content of t he soil or aggregate components in accordance with DOTD TR 403 at the beginning of each day’s operations and at least twice per day during continuous operation. The contractor’s Certified Soil and Base Course Technician shall test the moisture content of the mixture including the cement, as needed, to control the finished product within specification requirements. When specifying a composite gradation for the soil or aggregate material, check the gradation at least twice per day in accordance with DOTD TR 112 and TR 113. Document tests in accordance with the Department’s current procedures. The contractor’s Certified Soil and Base Course Technician shall check the percent pulverization in accordance with DOTD TR 431 at least twice per day. At least 80 per cent shall pass the No. 4 sieve. When any quality control test does not meet the applicable specifications, make immediate corrections and notify Department personnel of the change, or otherwise the operations shall be discontinued.

301.07.2 Asphalt Concrete: Asphalt concrete plant operations

shall conform to Section 502 .

301.08 Loading, Transporting, and Placing On

SUBGRADE. Do not allow base course materials to segregate d uring loading. Cover soil cement mixtures immediately with an approved waterproof cover to prevent loss of moisture, fines, or exposure to the The contractor’s Certified Soil and Base Course Technician shall continually monitor plant operations to ensure that systems function properly and that the proportions of materials are correct. At the beginning of e ach day’s operation, check the percent cement being incorporated into the mixture, and then against the plant’s print -out of cumulative totals every two hours. The contractor’s Certified Soil and Base Course Technician shall test for moisture content of t he soil or aggregate components in accordance with DOTD TR 403 at the beginning of each day’s operations and at least twice per day during continuous operation. The contractor’s Certified Soil and Base Course Technician shall test the moisture content of the mixture including the cement, as needed, to control the finished product within specification requirements. When specifying a composite gradation for the soil or aggregate material, check the gradation at least twice per day in accordance with DOTD TR 112 and TR 113. Document tests in accordance with the Department’s current procedures. The contractor’s Certified Soil and Base Course Technician shall check the percent pulverization in accordance with DOTD TR 431 at least twice per day. At least 80 per cent shall pass the No. 4 sieve. When any quality control test does not meet the applicable specifications, make immediate corrections and notify Department personnel of the change, or otherwise the operations shall be discontinued.

301.07.2 Asphalt Concrete: Asphalt concrete plant operations

shall conform to Section 502 .

301.08 Loading, Transporting, and Placing On

SUBGRADE. Do not allow base course materials to segregate d uring loading. Cover soil cement mixtures immediately with an approved waterproof cover to prevent loss of moisture, fines, or exposure to the elements. Tie the cover securely in place and do not remove until placement of the mixture. Do not allow transp ortation, placing , and spreading methods to damage the subgrade. Place and spread sufficient material to obtain required width and compacted thickness within the tolerances set forth in 301.16 . Place and spread soil cement within one hour of mixing cement with the soils or soil aggregates. Do not contaminate base course materials with subgrade layer. Any contamination will requi re retesting and correction of deficiencies. Do not place or spread base course material on portland cement concrete or asphalt concrete pavements. Do not damage pavement surfaces, edges , or joints during construction. Add water or use other suitable means to prevent dust during the transporting and placing of blended calcium sulfate.

301.09 GRADE AND CROSS -SLOPE CONTROL . Unless otherwise

specified, construct Class I Base Courses (except asphalt concrete) to the required grade and cross slope, using an automatic finishing machine controlled from an erected stringline or GPS and laser system conforming to 502.08.2.2 .

301.10 Compacting and Finishing.

301.10.1 Soil Cement: Compact the mixture immediately after

placement. Complete initial compaction with an approved conventional sheepsfoot -type roller or a self -propelled tamping foot compactor -type roller in such a manner that no internal laminations occur in th e completed base course. Use a pneumatic -tire roller for final compaction, operated so that no surface laminations occur. Keep the surface uniformly moist during compaction and shaping. During the compaction and finishing, correct low -riding areas or are as with surface imperfections that need correction using fresh material. Thoroughly scarify the surface before placing and blending new base material. Complete final compaction of the corrected surface within the same time limit applied to the initial pl acement of base materials as outlined in this subsection. elements. Tie the cover securely in place and do not remove until placement of the mixture. Do not allow transp ortation, placing , and spreading methods to damage the subgrade. Place and spread sufficient material to obtain required width and compacted thickness within the tolerances set forth in 301.16 . Place and spread soil cement within one hour of mixing cement with the soils or soil aggregates. Do not contaminate base course materials with subgrade layer. Any contamination will requi re retesting and correction of deficiencies. Do not place or spread base course material on portland cement concrete or asphalt concrete pavements. Do not damage pavement surfaces, edges , or joints during construction. Add water or use other suitable means to prevent dust during the transporting and placing of blended calcium sulfate.

301.09 GRADE AND CROSS -SLOPE CONTROL . Unless otherwise

specified, construct Class I Base Courses (except asphalt concrete) to the required grade and cross slope, using an automatic finishing machine controlled from an erected stringline or GPS and laser system conforming to 502.08.2.2 .

301.10 Compacting and Finishing.

301.10.1 Soil Cement: Compact the mixture immediately after

placement. Complete initial compaction with an approved conventional sheepsfoot -type roller or a self -propelled tamping foot compactor -type roller in such a manner that no internal laminations occur in th e completed base course. Use a pneumatic -tire roller for final compaction, operated so that no surface laminations occur. Keep the surface uniformly moist during compaction and shaping. During the compaction and finishing, correct low -riding areas or are as with surface imperfections that need correction using fresh material. Thoroughly scarify the surface before placing and blending new base material. Complete final compaction of the corrected surface within the same time limit applied to the initial pl acement of base materials as outlined in this subsection. elements. Tie the cover securely in place and do not remove until placement of the mixture. Do not allow transp ortation, placing , and spreading methods to damage the subgrade. Place and spread sufficient material to obtain required width and compacted thickness within the tolerances set forth in 301.16 . Place and spread soil cement within one hour of mixing cement with the soils or soil aggregates. Do not contaminate base course materials with subgrade layer. Any contamination will requi re retesting and correction of deficiencies. Do not place or spread base course material on portland cement concrete or asphalt concrete pavements. Do not damage pavement surfaces, edges , or joints during construction. Add water or use other suitable means to prevent dust during the transporting and placing of blended calcium sulfate.

301.09 GRADE AND CROSS -SLOPE CONTROL . Unless otherwise

specified, construct Class I Base Courses (except asphalt concrete) to the required grade and cross slope, using an automatic finishing machine controlled from an erected stringline or GPS and laser system conforming to 502.08.2.2 .

301.10 Compacting and Finishing.

301.10.1 Soil Cement: Compact the mixture immediately after

placement. Complete initial compaction with an approved conventional sheepsfoot -type roller or a self -propelled tamping foot compactor -type roller in such a manner that no internal laminations occur in th e completed base course. Use a pneumatic -tire roller for final compaction, operated so that no surface laminations occur. Keep the surface uniformly moist during compaction and shaping. During the compaction and finishing, correct low -riding areas or are as with surface imperfections that need correction using fresh material. Thoroughly scarify the surface before placing and blending new base material. Complete final compaction of the corrected surface within the same time limit applied to the initial pl acement of base materials as outlined in this subsection. elements. Tie the cover securely in place and do not remove until placement of the mixture. Do not allow transp ortation, placing , and spreading methods to damage the subgrade. Place and spread sufficient material to obtain required width and compacted thickness within the tolerances set forth in 301.16 . Place and spread soil cement within one hour of mixing cement with the soils or soil aggregates. Do not contaminate base course materials with subgrade layer. Any contamination will requi re retesting and correction of deficiencies. Do not place or spread base course material on portland cement concrete or asphalt concrete pavements. Do not damage pavement surfaces, edges , or joints during construction. Add water or use other suitable means to prevent dust during the transporting and placing of blended calcium sulfate.

301.09 GRADE AND CROSS -SLOPE CONTROL . Unless otherwise

specified, construct Class I Base Courses (except asphalt concrete) to the required grade and cross slope, using an automatic finishing machine controlled from an erected stringline or GPS and laser system conforming to 502.08.2.2 .

301.10 Compacting and Finishing.

301.10.1 Soil Cement: Compact the mixture immediately after

placement. Complete initial compaction with an approved conventional sheepsfoot -type roller or a self -propelled tamping foot compactor -type roller in such a manner that no internal laminations occur in th e completed base course. Use a pneumatic -tire roller for final compaction, operated so that no surface laminations occur. Keep the surface uniformly moist during compaction and shaping. During the compaction and finishing, correct low -riding areas or are as with surface imperfections that need correction using fresh material. Thoroughly scarify the surface before placing and blending new base material. Complete final compaction of the corrected surface within the same time limit applied to the initial pl acement of base materials as outlined in this subsection. Complete compaction and initial finishing within two hours after initial mixing of cement with base course materials. Each lift of base course shall meet the requirements of 301.16 . After compacting the base, uniformly apply water as needed to maintain the proper moisture content for intermediate finishing (tight blading). Thoroughly roll and finish the su rface to grade; remove loosened material from the section. Finish rolling the surface with either a pneumatic -tire or static steel -wheel roller to provide a smooth, tightly knit surface conforming to finish grade or slightly higher. Use an automatic finis hing machine for final finishing and provide a surface free of cracks, ridges, waves, surface laminations, or loose material. Do not allow the cross -slope to vary by more than ±0.003 foot/foot. Do not allow the grade to vary by more than ±0.04 feet from plan grade. In areas inaccessible to the automatic finishing machine, final finishing will not be required, provided the grade and cross -slope satisfies the project engineer. Conduct final finishing far enough in advance to allow the Department to perfor m width and depth check tests. At places inaccessible to rollers, such as edges adjacent to curb and gutter sections, compact the mixture using devices that will obtain the specified density without damage to adjacent structures. Do not operate transport v ehicles and heavy construction equipment on compacted base course for a period of 72 hours after placement.

301.10.2 Asphalt Concrete Base: Compaction and finishing

requirements shall be as follows:

301.10.3 Crushed Stone Recycled Portland Cement

Concrete: Compact and finish the same as specified in 301.10.1 , except that the time limitations will not apply. Do not allow water added to facilitate compaction to damage underlying materials. Do not use vibratory rollers when it detrimental to the underlying layers or in areas with high water table.

301.10.4 Blended Calcium Sulfate: During placement of blended

calcium sulfate, the percentage of moisture in the mixture, by dry weight, shall not vary from the optimum moisture by more than ±2.0 percent. After application of water, allow the moisture to reach equilibrium in the base before applying rolling techniques. Roll blended calcium sulfate to Complete compaction and initial finishing within two hours after initial mixing of cement with base course materials. Each lift of base course shall meet the requirements of 301.16 . After compacting the base, uniformly apply water as needed to maintain the proper moisture content for intermediate finishing (tight blading). Thoroughly roll and finish the su rface to grade; remove loosened material from the section. Finish rolling the surface with either a pneumatic -tire or static steel -wheel roller to provide a smooth, tightly knit surface conforming to finish grade or slightly higher. Use an automatic finis hing machine for final finishing and provide a surface free of cracks, ridges, waves, surface laminations, or loose material. Do not allow the cross -slope to vary by more than ±0.003 foot/foot. Do not allow the grade to vary by more than ±0.04 feet from plan grade. In areas inaccessible to the automatic finishing machine, final finishing will not be required, provided the grade and cross -slope satisfies the project engineer. Conduct final finishing far enough in advance to allow the Department to perfor m width and depth check tests. At places inaccessible to rollers, such as edges adjacent to curb and gutter sections, compact the mixture using devices that will obtain the specified density without damage to adjacent structures. Do not operate transport v ehicles and heavy construction equipment on compacted base course for a period of 72 hours after placement.

301.10.2 Asphalt Concrete Base: Compaction and finishing

requirements shall be as follows:

301.10.3 Crushed Stone Recycled Portland Cement

Concrete: Compact and finish the same as specified in 301.10.1 , except that the time limitations will not apply. Do not allow water added to facilitate compaction to damage underlying materials. Do not use vibratory rollers when it detrimental to the underlying layers or in areas with high water table.

301.10.4 Blended Calcium Sulfate: During placement of blended

calcium sulfate, the percentage of moisture in the mixture, by dry weight, shall not vary from the optimum moisture by more than ±2.0 percent. After application of water, allow the moisture to reach equilibrium in the base before applying rolling techniques. Roll blended calcium sulfate to Complete compaction and initial finishing within two hours after initial mixing of cement with base course materials. Each lift of base course shall meet the requirements of 301.16 . After compacting the base, uniformly apply water as needed to maintain the proper moisture content for intermediate finishing (tight blading). Thoroughly roll and finish the su rface to grade; remove loosened material from the section. Finish rolling the surface with either a pneumatic -tire or static steel -wheel roller to provide a smooth, tightly knit surface conforming to finish grade or slightly higher. Use an automatic finis hing machine for final finishing and provide a surface free of cracks, ridges, waves, surface laminations, or loose material. Do not allow the cross -slope to vary by more than ±0.003 foot/foot. Do not allow the grade to vary by more than ±0.04 feet from plan grade. In areas inaccessible to the automatic finishing machine, final finishing will not be required, provided the grade and cross -slope satisfies the project engineer. Conduct final finishing far enough in advance to allow the Department to perfor m width and depth check tests. At places inaccessible to rollers, such as edges adjacent to curb and gutter sections, compact the mixture using devices that will obtain the specified density without damage to adjacent structures. Do not operate transport v ehicles and heavy construction equipment on compacted base course for a period of 72 hours after placement.

301.10.2 Asphalt Concrete Base: Compaction and finishing

requirements shall be as follows:

301.10.3 Crushed Stone Recycled Portland Cement

Concrete: Compact and finish the same as specified in 301.10.1 , except that the time limitations will not apply. Do not allow water added to facilitate compaction to damage underlying materials. Do not use vibratory rollers when it detrimental to the underlying layers or in areas with high water table.

301.10.4 Blended Calcium Sulfate: During placement of blended

calcium sulfate, the percentage of moisture in the mixture, by dry weight, shall not vary from the optimum moisture by more than ±2.0 percent. After application of water, allow the moisture to reach equilibrium in the base before applying rolling techniques. Roll blended calcium sulfate to Complete compaction and initial finishing within two hours after initial mixing of cement with base course materials. Each lift of base course shall meet the requirements of 301.16 . After compacting the base, uniformly apply water as needed to maintain the proper moisture content for intermediate finishing (tight blading). Thoroughly roll and finish the su rface to grade; remove loosened material from the section. Finish rolling the surface with either a pneumatic -tire or static steel -wheel roller to provide a smooth, tightly knit surface conforming to finish grade or slightly higher. Use an automatic finis hing machine for final finishing and provide a surface free of cracks, ridges, waves, surface laminations, or loose material. Do not allow the cross -slope to vary by more than ±0.003 foot/foot. Do not allow the grade to vary by more than ±0.04 feet from plan grade. In areas inaccessible to the automatic finishing machine, final finishing will not be required, provided the grade and cross -slope satisfies the project engineer. Conduct final finishing far enough in advance to allow the Department to perfor m width and depth check tests. At places inaccessible to rollers, such as edges adjacent to curb and gutter sections, compact the mixture using devices that will obtain the specified density without damage to adjacent structures. Do not operate transport v ehicles and heavy construction equipment on compacted base course for a period of 72 hours after placement.

301.10.2 Asphalt Concrete Base: Compaction and finishing

requirements shall be as follows:

301.10.3 Crushed Stone Recycled Portland Cement

Concrete: Compact and finish the same as specified in 301.10.1 , except that the time limitations will not apply. Do not allow water added to facilitate compaction to damage underlying materials. Do not use vibratory rollers when it detrimental to the underlying layers or in areas with high water table.

301.10.4 Blended Calcium Sulfate: During placement of blended

calcium sulfate, the percentage of moisture in the mixture, by dry weight, shall not vary from the optimum moisture by more than ±2.0 percent. After application of water, allow the moisture to reach equilibrium in the base before applying rolling techniques. Roll blended calcium sulfate to the edge of the embankment or subgrade. Compact each layer to at least 95 percent of maximum dry density before the next layer is placed. Determine optimum moisture and maximum density in accordance with DOTD TR 418 Method G modified to include a maximum drying temperature of 140°F. Test all bl ended calcium sulfate base by proof rolling immediately prior to placement of surfacing material, including asphalt binder. Correct any irregularities or soft spots prior to placement of the surfacing material. Proof roll by using a load of 25 tons in a 12 to 14 cubic yard tandem dump truck with ten wheels or approved loaded truck determined by the project engineer. Proof rolling shall be a minimum of 5 passes in each direction at the same locations and at a maximum vehicle speed of 3 mph . Any rain event on the project site between the proof rolling and placement of the surfacing will require an additional proof rolling , as noted above.

301.11 Quality Control of Roadway Operations.

Control the selection, placement, compaction, moisture content, density, thickness, width, surface finish, and grade so that the completed base course is uniform and conforms to plan dimensions and other acceptance requirements as provided herein. Construct the base course so that contamination, segregation, soft spots, wet sp ots, laminations, and other deficiencies are prevented. Do not damage the subgrade layer during compaction operations. Perform tests to control moisture content, thickness, width and density.

301.12 Protection and Curing.

301.12.1 Soil Cement and Treated Layer Under Asphalt

Concrete: Upon completion of intermediate finishing, immediately protect the base course against drying by applying an asphalt curing membrane in accordance with Section 506 . Place asphalt curing membrane on the same day as treatment. Maintain complete coverage of curing membrane from initial application until the placement of the next course. When allowing traffic, including construction equipment, on the base course, place at least the first lift of surfacing within 30 calendar days unless otherwise directed.

301.12.2 Crushed Stone, Recycled Portland Cement

Concrete, and Blended Calcium Sulfate: Cover the completed base course with asphalt prime coat in acco rdance with Section 505 as soon as practical to prevent water infiltration due to rainfall. Maintain complete the edge of the embankment or subgrade. Compact each layer to at least 95 percent of maximum dry density before the next layer is placed. Determine optimum moisture and maximum density in accordance with DOTD TR 418 Method G modified to include a maximum drying temperature of 140°F. Test all bl ended calcium sulfate base by proof rolling immediately prior to placement of surfacing material, including asphalt binder. Correct any irregularities or soft spots prior to placement of the surfacing material. Proof roll by using a load of 25 tons in a 12 to 14 cubic yard tandem dump truck with ten wheels or approved loaded truck determined by the project engineer. Proof rolling shall be a minimum of 5 passes in each direction at the same locations and at a maximum vehicle speed of 3 mph . Any rain event on the project site between the proof rolling and placement of the surfacing will require an additional proof rolling , as noted above.

301.11 Quality Control of Roadway Operations.

Control the selection, placement, compaction, moisture content, density, thickness, width, surface finish, and grade so that the completed base course is uniform and conforms to plan dimensions and other acceptance requirements as provided herein. Construct the base course so that contamination, segregation, soft spots, wet sp ots, laminations, and other deficiencies are prevented. Do not damage the subgrade layer during compaction operations. Perform tests to control moisture content, thickness, width and density.

301.12 Protection and Curing.

301.12.1 Soil Cement and Treated Layer Under Asphalt

Concrete: Upon completion of intermediate finishing, immediately protect the base course against drying by applying an asphalt curing membrane in accordance with Section 506 . Place asphalt curing membrane on the same day as treatment. Maintain complete coverage of curing membrane from initial application until the placement of the next course. When allowing traffic, including construction equipment, on the base course, place at least the first lift of surfacing within 30 calendar days unless otherwise directed.

301.12.2 Crushed Stone, Recycled Portland Cement

Concrete, and Blended Calcium Sulfate: Cover the completed base course with asphalt prime coat in acco rdance with Section 505 as soon as practical to prevent water infiltration due to rainfall. Maintain complete the edge of the embankment or subgrade. Compact each layer to at least 95 percent of maximum dry density before the next layer is placed. Determine optimum moisture and maximum density in accordance with DOTD TR 418 Method G modified to include a maximum drying temperature of 140°F. Test all bl ended calcium sulfate base by proof rolling immediately prior to placement of surfacing material, including asphalt binder. Correct any irregularities or soft spots prior to placement of the surfacing material. Proof roll by using a load of 25 tons in a 12 to 14 cubic yard tandem dump truck with ten wheels or approved loaded truck determined by the project engineer. Proof rolling shall be a minimum of 5 passes in each direction at the same locations and at a maximum vehicle speed of 3 mph . Any rain event on the project site between the proof rolling and placement of the surfacing will require an additional proof rolling , as noted above.

301.11 Quality Control of Roadway Operations.

Control the selection, placement, compaction, moisture content, density, thickness, width, surface finish, and grade so that the completed base course is uniform and conforms to plan dimensions and other acceptance requirements as provided herein. Construct the base course so that contamination, segregation, soft spots, wet sp ots, laminations, and other deficiencies are prevented. Do not damage the subgrade layer during compaction operations. Perform tests to control moisture content, thickness, width and density.

301.12 Protection and Curing.

301.12.1 Soil Cement and Treated Layer Under Asphalt

Concrete: Upon completion of intermediate finishing, immediately protect the base course against drying by applying an asphalt curing membrane in accordance with Section 506 . Place asphalt curing membrane on the same day as treatment. Maintain complete coverage of curing membrane from initial application until the placement of the next course. When allowing traffic, including construction equipment, on the base course, place at least the first lift of surfacing within 30 calendar days unless otherwise directed.

301.12.2 Crushed Stone, Recycled Portland Cement

Concrete, and Blended Calcium Sulfate: Cover the completed base course with asphalt prime coat in acco rdance with Section 505 as soon as practical to prevent water infiltration due to rainfall. Maintain complete the edge of the embankment or subgrade. Compact each layer to at least 95 percent of maximum dry density before the next layer is placed. Determine optimum moisture and maximum density in accordance with DOTD TR 418 Method G modified to include a maximum drying temperature of 140°F. Test all bl ended calcium sulfate base by proof rolling immediately prior to placement of surfacing material, including asphalt binder. Correct any irregularities or soft spots prior to placement of the surfacing material. Proof roll by using a load of 25 tons in a 12 to 14 cubic yard tandem dump truck with ten wheels or approved loaded truck determined by the project engineer. Proof rolling shall be a minimum of 5 passes in each direction at the same locations and at a maximum vehicle speed of 3 mph . Any rain event on the project site between the proof rolling and placement of the surfacing will require an additional proof rolling , as noted above.

301.11 Quality Control of Roadway Operations.

Control the selection, placement, compaction, moisture content, density, thickness, width, surface finish, and grade so that the completed base course is uniform and conforms to plan dimensions and other acceptance requirements as provided herein. Construct the base course so that contamination, segregation, soft spots, wet sp ots, laminations, and other deficiencies are prevented. Do not damage the subgrade layer during compaction operations. Perform tests to control moisture content, thickness, width and density.

301.12 Protection and Curing.

301.12.1 Soil Cement and Treated Layer Under Asphalt

Concrete: Upon completion of intermediate finishing, immediately protect the base course against drying by applying an asphalt curing membrane in accordance with Section 506 . Place asphalt curing membrane on the same day as treatment. Maintain complete coverage of curing membrane from initial application until the placement of the next course. When allowing traffic, including construction equipment, on the base course, place at least the first lift of surfacing within 30 calendar days unless otherwise directed.

301.12.2 Crushed Stone, Recycled Portland Cement

Concrete, and Blended Calcium Sulfate: Cover the completed base course with asphalt prime coat in acco rdance with Section 505 as soon as practical to prevent water infiltration due to rainfall. Maintain complete the edge of the embankment or subgrade. Compact each layer to at least 95 percent of maximum dry density before the next layer is placed. Determine optimum moisture and maximum density in accordance with DOTD TR 418 Method G modified to include a maximum drying temperature of 140°F. Test all bl ended calcium sulfate base by proof rolling immediately prior to placement of surfacing material, including asphalt binder. Correct any irregularities or soft spots prior to placement of the surfacing material. Proof roll by using a load of 25 tons in a 12 to 14 cubic yard tandem dump truck with ten wheels or approved loaded truck determined by the project engineer. Proof rolling shall be a minimum of 5 passes in each direction at the same locations and at a maximum vehicle speed of 3 mph . Any rain event on the project site between the proof rolling and placement of the surfacing will require an additional proof rolling , as noted above.

301.11 Quality Control of Roadway Operations.

Control the selection, placement, compaction, moisture content, density, thickness, width, surface finish, and grade so that the completed base course is uniform and conforms to plan dimensions and other acceptance requirements as provided herein. Construct the base course so that contamination, segregation, soft spots, wet sp ots, laminations, and other deficiencies are prevented. Do not damage the subgrade layer during compaction operations. Perform tests to control moisture content, thickness, width and density.

301.12 Protection and Curing.

301.12.1 Soil Cement and Treated Layer Under Asphalt

Concrete: Upon completion of intermediate finishing, immediately protect the base course against drying by applying an asphalt curing membrane in accordance with Section 506 . Place asphalt curing membrane on the same day as treatment. Maintain complete coverage of curing membrane from initial application until the placement of the next course. When allowing traffic, including construction equipment, on the base course, place at least the first lift of surfacing within 30 calendar days unless otherwise directed.

301.12.2 Crushed Stone, Recycled Portland Cement

Concrete, and Blended Calcium Sulfate: Cover the completed base course with asphalt prime coat in acco rdance with Section 505 as soon as practical to prevent water infiltration due to rainfall. Maintain complete coverage of the asphalt prime coat from initial appl ication until the placement of the next course. When allowing traffic, including construction equipment, on the base course, the prime coat application may be delayed. However, place the first lift of surfacing within 30 calendar days unless otherwise di rected.

301.13 CONSTRUCTION JOINTS. On soil cement base courses, tie

each day’s construction into the completed work of the previous day by a straight transverse construction joint. Form the joint by cutting back into the total width of the base to form a tru e vertical face free of loose and broken material at a point where the base conforms to the typical section shown on the plans. Longitudinal joints constructed between parallel lanes or similar joints between lanes and ramps, etc., shall be reasonably vert ical and free of contaminated loose and/or broken material. Construct the base at all joints so that the materials at and adjacent to the joint are stable, uniformly compacted and tightly knit.

301.14 MAINTENANCE OF BASE COURSE. Protect the completed

base course from damage due to public traffic or the contractor’s operations, and satisfactorily maintain the completed base course including the asphalt curing membrane or prime coat. Repair damaged base course at no direct pay. When requiring patching of th e base course, in addition to removing damaged or unsound base course, remove a sufficient width and depth of base course to ensure satisfactory placement of patching material. The engineer must approve the type of patching material before use. Patching or other base course repair shall restore a uniform surface, shall conform to the requirements of the material being used, and shall be completed before paving operations begin. Patch failures detected during paving. When not requiring maintenance of traf fic, allow neither public traffic nor construction traffic on the completed base course during the 72 -hour curing period. When requiring maintenance of traffic and conditions permit, route both public traffic and construction traffic off the completed bas e course onto shoulders or other suitable areas during the 72 -hour curing period. When permitting traffic to use the completed base course subsequent to the 72 -hour curing period and prior to construction of the surface course, further protect the base by additional applications of asphalt curing membrane or prime coat in accordance with 301.12 at no direct pay. coverage of the asphalt prime coat from initial appl ication until the placement of the next course. When allowing traffic, including construction equipment, on the base course, the prime coat application may be delayed. However, place the first lift of surfacing within 30 calendar days unless otherwise di rected.

301.13 CONSTRUCTION JOINTS. On soil cement base courses, tie

each day’s construction into the completed work of the previous day by a straight transverse construction joint. Form the joint by cutting back into the total width of the base to form a tru e vertical face free of loose and broken material at a point where the base conforms to the typical section shown on the plans. Longitudinal joints constructed between parallel lanes or similar joints between lanes and ramps, etc., shall be reasonably vert ical and free of contaminated loose and/or broken material. Construct the base at all joints so that the materials at and adjacent to the joint are stable, uniformly compacted and tightly knit.

301.14 MAINTENANCE OF BASE COURSE. Protect the completed

base course from damage due to public traffic or the contractor’s operations, and satisfactorily maintain the completed base course including the asphalt curing membrane or prime coat. Repair damaged base course at no direct pay. When requiring patching of th e base course, in addition to removing damaged or unsound base course, remove a sufficient width and depth of base course to ensure satisfactory placement of patching material. The engineer must approve the type of patching material before use. Patching or other base course repair shall restore a uniform surface, shall conform to the requirements of the material being used, and shall be completed before paving operations begin. Patch failures detected during paving. When not requiring maintenance of traf fic, allow neither public traffic nor construction traffic on the completed base course during the 72 -hour curing period. When requiring maintenance of traffic and conditions permit, route both public traffic and construction traffic off the completed bas e course onto shoulders or other suitable areas during the 72 -hour curing period. When permitting traffic to use the completed base course subsequent to the 72 -hour curing period and prior to construction of the surface course, further protect the base by additional applications of asphalt curing membrane or prime coat in accordance with 301.12 at no direct pay. coverage of the asphalt prime coat from initial appl ication until the placement of the next course. When allowing traffic, including construction equipment, on the base course, the prime coat application may be delayed. However, place the first lift of surfacing within 30 calendar days unless otherwise di rected.

301.13 CONSTRUCTION JOINTS. On soil cement base courses, tie

each day’s construction into the completed work of the previous day by a straight transverse construction joint. Form the joint by cutting back into the total width of the base to form a tru e vertical face free of loose and broken material at a point where the base conforms to the typical section shown on the plans. Longitudinal joints constructed between parallel lanes or similar joints between lanes and ramps, etc., shall be reasonably vert ical and free of contaminated loose and/or broken material. Construct the base at all joints so that the materials at and adjacent to the joint are stable, uniformly compacted and tightly knit.

301.14 MAINTENANCE OF BASE COURSE. Protect the completed

base course from damage due to public traffic or the contractor’s operations, and satisfactorily maintain the completed base course including the asphalt curing membrane or prime coat. Repair damaged base course at no direct pay. When requiring patching of th e base course, in addition to removing damaged or unsound base course, remove a sufficient width and depth of base course to ensure satisfactory placement of patching material. The engineer must approve the type of patching material before use. Patching or other base course repair shall restore a uniform surface, shall conform to the requirements of the material being used, and shall be completed before paving operations begin. Patch failures detected during paving. When not requiring maintenance of traf fic, allow neither public traffic nor construction traffic on the completed base course during the 72 -hour curing period. When requiring maintenance of traffic and conditions permit, route both public traffic and construction traffic off the completed bas e course onto shoulders or other suitable areas during the 72 -hour curing period. When permitting traffic to use the completed base course subsequent to the 72 -hour curing period and prior to construction of the surface course, further protect the base by additional applications of asphalt curing membrane or prime coat in accordance with 301.12 at no direct pay. Prior to surface course construction, correct deficie ncies and weak spots, clean the base course surface, repair any damages caused by traffic, and keep surface true to grade and cross -section at no direct pay. Apply additional asphalt curing membrane or prime coat as directed at no direct pay. Complete this work at least 24 hours prior to construction of the next layer. When allowing traffic, including construction equipment, on the asphalt concrete surfacing , place the first lift of surfaci ng within 30 calendar days.

301.15 WEATHER LIMITATIONS. Do not construct the base course

when the subgrade or stockpiles are frozen, when raining, when the ambient air temperature is below 35°F, in the case of cement treated bases, or the temperature is forecasted by the U.S. Weather Service to be 25°F or less wi thin the 24 -hour period following placement.

301.16 ACCEPTANCE REQUIREMENTS. Soils and aggregates will

be sampled and tested for acceptance by the department prior to the addition to a dedicated stockpile. Sampling will be in accordance with the materials sam pling manual. Plant operations will be checked for uniformity and the proportioning of the components. The percent cement will be checked at least twice per day in accordance with DOTD TR 436. The percent cement being incorporated into the mixture shall not be more than 0.1 percent by weight of the total material below the approved percent cement, or operations shall be discontinued until corrections have been made. The moisture content of the soil cement or cement stabilized mixtures will be tested at placement at least twice per day for conformance to optimum moisture content in accordance with DOTD TR 403. When the moisture content is not within specification limits, take immediate corrective actions or operations shall be discontinued. Whe n the moisture content is not within specification limits, the enginee r may require removal of the in -place material. Pulverization of the soil cement or cement stabilized mixtures will be tested in accordance with DOTD TR 431 at the plant at least twice per day. At least 80 percent shall pass the No. 4 sieve. Base courses, except asphalt concrete, will be checked for determining acceptance in incre ments of 1000 linear feet per roadway or 2000 linear feet per shoulder constructed separately. Asphalt concrete base course will be accepted in accordance with Section 502 . Prior to surface course construction, correct deficie ncies and weak spots, clean the base course surface, repair any damages caused by traffic, and keep surface true to grade and cross -section at no direct pay. Apply additional asphalt curing membrane or prime coat as directed at no direct pay. Complete this work at least 24 hours prior to construction of the next layer. When allowing traffic, including construction equipment, on the asphalt concrete surfacing , place the first lift of surfaci ng within 30 calendar days.

301.15 WEATHER LIMITATIONS. Do not construct the base course

when the subgrade or stockpiles are frozen, when raining, when the ambient air temperature is below 35°F, in the case of cement treated bases, or the temperature is forecasted by the U.S. Weather Service to be 25°F or less wi thin the 24 -hour period following placement.

301.16 ACCEPTANCE REQUIREMENTS. Soils and aggregates will

be sampled and tested for acceptance by the department prior to the addition to a dedicated stockpile. Sampling will be in accordance with the materials sam pling manual. Plant operations will be checked for uniformity and the proportioning of the components. The percent cement will be checked at least twice per day in accordance with DOTD TR 436. The percent cement being incorporated into the mixture shall not be more than 0.1 percent by weight of the total material below the approved percent cement, or operations shall be discontinued until corrections have been made. The moisture content of the soil cement or cement stabilized mixtures will be tested at placement at least twice per day for conformance to optimum moisture content in accordance with DOTD TR 403. When the moisture content is not within specification limits, take immediate corrective actions or operations shall be discontinued. Whe n the moisture content is not within specification limits, the enginee r may require removal of the in -place material. Pulverization of the soil cement or cement stabilized mixtures will be tested in accordance with DOTD TR 431 at the plant at least twice per day. At least 80 percent shall pass the No. 4 sieve. Base courses, except asphalt concrete, will be checked for determining acceptance in incre ments of 1000 linear feet per roadway or 2000 linear feet per shoulder constructed separately. Asphalt concrete base course will be accepted in accordance with Section 502 . Prior to surface course construction, correct deficie ncies and weak spots, clean the base course surface, repair any damages caused by traffic, and keep surface true to grade and cross -section at no direct pay. Apply additional asphalt curing membrane or prime coat as directed at no direct pay. Complete this work at least 24 hours prior to construction of the next layer. When allowing traffic, including construction equipment, on the asphalt concrete surfacing , place the first lift of surfaci ng within 30 calendar days.

301.15 WEATHER LIMITATIONS. Do not construct the base course

when the subgrade or stockpiles are frozen, when raining, when the ambient air temperature is below 35°F, in the case of cement treated bases, or the temperature is forecasted by the U.S. Weather Service to be 25°F or less wi thin the 24 -hour period following placement.

301.16 ACCEPTANCE REQUIREMENTS. Soils and aggregates will

be sampled and tested for acceptance by the department prior to the addition to a dedicated stockpile. Sampling will be in accordance with the materials sam pling manual. Plant operations will be checked for uniformity and the proportioning of the components. The percent cement will be checked at least twice per day in accordance with DOTD TR 436. The percent cement being incorporated into the mixture shall not be more than 0.1 percent by weight of the total material below the approved percent cement, or operations shall be discontinued until corrections have been made. The moisture content of the soil cement or cement stabilized mixtures will be tested at placement at least twice per day for conformance to optimum moisture content in accordance with DOTD TR 403. When the moisture content is not within specification limits, take immediate corrective actions or operations shall be discontinued. Whe n the moisture content is not within specification limits, the enginee r may require removal of the in -place material. Pulverization of the soil cement or cement stabilized mixtures will be tested in accordance with DOTD TR 431 at the plant at least twice per day. At least 80 percent shall pass the No. 4 sieve. Base courses, except asphalt concrete, will be checked for determining acceptance in incre ments of 1000 linear feet per roadway or 2000 linear feet per shoulder constructed separately. Asphalt concrete base course will be accepted in accordance with Section 502 .

301.16.1 Density Requirements: Upon completion of compaction

operations, base course density, except asphalt concrete, will be determined in accordance with DOTD TR 401. Density requirements of asphalt concrete base course shall be in accordance with Section 502 . Density requirements for Class I base course materials other than asphalt concrete shall be a minimum of 95.0 percent maximum dry density in accordance with DOTD TR 418.

301.16.1 1 Soil Cement and Treated Layer Under Asphalt

Concrete: When the density tes t value for the section falls below 95.0 percent, a payment adjustment will be applied in accordance with Table 301-1. Table 301-1 Density Acceptance and Payment Schedule Density Test Value, (percent) Percent of Contract Unit Price 95.0 & above 100 94.0 to 94.9 90 93.0 to 93.9 75 Below 93.0 50 or Remove 1 1 At the option of the Chief Engineer.

301.16.1 2 Asphalt Concrete: The density requirements for

asphalt concrete base course shall be as specified in Section 502 .

301.16.1 3 Crushed Stone, Recycle Portland Cement

Concrete, and Blended Calcium Sulfate: When any test value is less than 95.0 percent maximum dry density, continue compaction until the density is ob tained. The acceptance requirements for blended calcium sulfate base course shall be the same as stone base course with the following modifications. Upon completion of compaction operations, determine the density in accordance with DOTD TR 401 except that all moisture content determinations for density calculations shall be conducted by oven drying the material for 24 hours at 140°F. A forced draft type oven capable of maintaining the temperature shall be provided by the contractor for field moisture content determination for density control.

301.16.2 Thickness Tolerances: The thickness of the completed

base course will be determined in accordance with DOTD TR 602. The under -thickness tolerances for asphalt concrete base course shall be in accordance with Section 502 .

301.16.1 Density Requirements: Upon completion of compaction

operations, base course density, except asphalt concrete, will be determined in accordance with DOTD TR 401. Density requirements of asphalt concrete base course shall be in accordance with Section 502 . Density requirements for Class I base course materials other than asphalt concrete shall be a minimum of 95.0 percent maximum dry density in accordance with DOTD TR 418.

301.16.1 1 Soil Cement and Treated Layer Under Asphalt

Concrete: When the density tes t value for the section falls below 95.0 percent, a payment adjustment will be applied in accordance with Table 301-1. Table 301-1 Density Acceptance and Payment Schedule Density Test Value, (percent) Percent of Contract Unit Price 95.0 & above 100 94.0 to 94.9 90 93.0 to 93.9 75 Below 93.0 50 or Remove 1 1 At the option of the Chief Engineer.

301.16.1 2 Asphalt Concrete: The density requirements for

asphalt concrete base course shall be as specified in Section 502 .

301.16.1 3 Crushed Stone, Recycle Portland Cement

Concrete, and Blended Calcium Sulfate: When any test value is less than 95.0 percent maximum dry density, continue compaction until the density is ob tained. The acceptance requirements for blended calcium sulfate base course shall be the same as stone base course with the following modifications. Upon completion of compaction operations, determine the density in accordance with DOTD TR 401 except that all moisture content determinations for density calculations shall be conducted by oven drying the material for 24 hours at 140°F. A forced draft type oven capable of maintaining the temperature shall be provided by the contractor for field moisture content determination for density control.

301.16.2 Thickness Tolerances: The thickness of the completed

base course will be determined in accordance with DOTD TR 602. The under -thickness tolerances for asphalt concrete base course shall be in accordance with Section 502 .

301.16.1 Density Requirements: Upon completion of compaction

operations, base course density, except asphalt concrete, will be determined in accordance with DOTD TR 401. Density requirements of asphalt concrete base course shall be in accordance with Section 502 . Density requirements for Class I base course materials other than asphalt concrete shall be a minimum of 95.0 percent maximum dry density in accordance with DOTD TR 418.

301.16.1 1 Soil Cement and Treated Layer Under Asphalt

Concrete: When the density tes t value for the section falls below 95.0 percent, a payment adjustment will be applied in accordance with Table 301-1. Table 301-1 Density Acceptance and Payment Schedule Density Test Value, (percent) Percent of Contract Unit Price 95.0 & above 100 94.0 to 94.9 90 93.0 to 93.9 75 Below 93.0 50 or Remove 1 1 At the option of the Chief Engineer.

301.16.1 2 Asphalt Concrete: The density requirements for

asphalt concrete base course shall be as specified in Section 502 .

301.16.1 3 Crushed Stone, Recycle Portland Cement

Concrete, and Blended Calcium Sulfate: When any test value is less than 95.0 percent maximum dry density, continue compaction until the density is ob tained. The acceptance requirements for blended calcium sulfate base course shall be the same as stone base course with the following modifications. Upon completion of compaction operations, determine the density in accordance with DOTD TR 401 except that all moisture content determinations for density calculations shall be conducted by oven drying the material for 24 hours at 140°F. A forced draft type oven capable of maintaining the temperature shall be provided by the contractor for field moisture content determination for density control.

301.16.2 Thickness Tolerances: The thickness of the completed

base course will be determined in accordance with DOTD TR 602. The under -thickness tolerances for asphalt concrete base course shall be in accordance with Section 502 .

301.16.1 Density Requirements: Upon completion of compaction

operations, base course density, except asphalt concrete, will be determined in accordance with DOTD TR 401. Density requirements of asphalt concrete base course shall be in accordance with Section 502 . Density requirements for Class I base course materials other than asphalt concrete shall be a minimum of 95.0 percent maximum dry density in accordance with DOTD TR 418.

301.16.1 1 Soil Cement and Treated Layer Under Asphalt

Concrete: When the density tes t value for the section falls below 95.0 percent, a payment adjustment will be applied in accordance with Table 301-1. Table 301-1 Density Acceptance and Payment Schedule Density Test Value, (percent) Percent of Contract Unit Price 95.0 & above 100 94.0 to 94.9 90 93.0 to 93.9 75 Below 93.0 50 or Remove 1 1 At the option of the Chief Engineer.

301.16.1 2 Asphalt Concrete: The density requirements for

asphalt concrete base course shall be as specified in Section 502 .

301.16.1 3 Crushed Stone, Recycle Portland Cement

Concrete, and Blended Calcium Sulfate: When any test value is less than 95.0 percent maximum dry density, continue compaction until the density is ob tained. The acceptance requirements for blended calcium sulfate base course shall be the same as stone base course with the following modifications. Upon completion of compaction operations, determine the density in accordance with DOTD TR 401 except that all moisture content determinations for density calculations shall be conducted by oven drying the material for 24 hours at 140°F. A forced draft type oven capable of maintaining the temperature shall be provided by the contractor for field moisture content determination for density control.

301.16.2 Thickness Tolerances: The thickness of the completed

base course will be determined in accordance with DOTD TR 602. The under -thickness tolerances for asphalt concrete base course shall be in accordance with Section 502 .

301.16.1 Density Requirements: Upon completion of compaction

operations, base course density, except asphalt concrete, will be determined in accordance with DOTD TR 401. Density requirements of asphalt concrete base course shall be in accordance with Section 502 . Density requirements for Class I base course materials other than asphalt concrete shall be a minimum of 95.0 percent maximum dry density in accordance with DOTD TR 418.

301.16.1 1 Soil Cement and Treated Layer Under Asphalt

Concrete: When the density tes t value for the section falls below 95.0 percent, a payment adjustment will be applied in accordance with Table 301-1. Table 301-1 Density Acceptance and Payment Schedule Density Test Value, (percent) Percent of Contract Unit Price 95.0 & above 100 94.0 to 94.9 90 93.0 to 93.9 75 Below 93.0 50 or Remove 1 1 At the option of the Chief Engineer.

301.16.1 2 Asphalt Concrete: The density requirements for

asphalt concrete base course shall be as specified in Section 502 .

301.16.1 3 Crushed Stone, Recycle Portland Cement

Concrete, and Blended Calcium Sulfate: When any test value is less than 95.0 percent maximum dry density, continue compaction until the density is ob tained. The acceptance requirements for blended calcium sulfate base course shall be the same as stone base course with the following modifications. Upon completion of compaction operations, determine the density in accordance with DOTD TR 401 except that all moisture content determinations for density calculations shall be conducted by oven drying the material for 24 hours at 140°F. A forced draft type oven capable of maintaining the temperature shall be provided by the contractor for field moisture content determination for density control.

301.16.2 Thickness Tolerances: The thickness of the completed

base course will be determined in accordance with DOTD TR 602. The under -thickness tolerances for asphalt concrete base course shall be in accordance with Section 502 .

301.16.1 Density Requirements: Upon completion of compaction

operations, base course density, except asphalt concrete, will be determined in accordance with DOTD TR 401. Density requirements of asphalt concrete base course shall be in accordance with Section 502 . Density requirements for Class I base course materials other than asphalt concrete shall be a minimum of 95.0 percent maximum dry density in accordance with DOTD TR 418.

301.16.1 1 Soil Cement and Treated Layer Under Asphalt

Concrete: When the density tes t value for the section falls below 95.0 percent, a payment adjustment will be applied in accordance with Table 301-1. Table 301-1 Density Acceptance and Payment Schedule Density Test Value, (percent) Percent of Contract Unit Price 95.0 & above 100 94.0 to 94.9 90 93.0 to 93.9 75 Below 93.0 50 or Remove 1 1 At the option of the Chief Engineer.

301.16.1 2 Asphalt Concrete: The density requirements for

asphalt concrete base course shall be as specified in Section 502 .

301.16.1 3 Crushed Stone, Recycle Portland Cement

Concrete, and Blended Calcium Sulfate: When any test value is less than 95.0 percent maximum dry density, continue compaction until the density is ob tained. The acceptance requirements for blended calcium sulfate base course shall be the same as stone base course with the following modifications. Upon completion of compaction operations, determine the density in accordance with DOTD TR 401 except that all moisture content determinations for density calculations shall be conducted by oven drying the material for 24 hours at 140°F. A forced draft type oven capable of maintaining the temperature shall be provided by the contractor for field moisture content determination for density control.

301.16.2 Thickness Tolerances: The thickness of the completed

base course will be determined in accordance with DOTD TR 602. The under -thickness tolerances for asphalt concrete base course shall be in accordance with Section 502 . Under -thickness of base courses, except asphalt concrete, shall not vary from plan thickness in excess of 1/2 inch. Correct base course thickness defic iencies in excess of this tolerance as specified herein at no direct pay. When using reconstruction as a method of correction, this tolerance shall apply. Over -thickness may be waived at no direct pay when meeting grade requirements. When not meeting grade requirements and not permitting grade adjustments, correct as required at no direct pay. Failing areas will be isolated longitudinally for purposes of correction for the entire width. When using crushed stone base or recycled concrete base over soil cement base, the individual base layer tolerances shall be as noted above, and the total base course under -thickness shall not exceed 3/4 inch.

301.16.2 1 Soil Cement and Treated Layer Under Asphalt

Concrete: When not permitting grade adjustments, correct under - thickness deficiencies by removing and replacing the full depth of base course in deficient areas with one of the following materials:

301.16.2 2 Asphalt Concrete Base Course: When not

Under -thickness of base courses, except asphalt concrete, shall not vary from plan thickness in excess of 1/2 inch. Correct base course thickness defic iencies in excess of this tolerance as specified herein at no direct pay. When using reconstruction as a method of correction, this tolerance shall apply. Over -thickness may be waived at no direct pay when meeting grade requirements. When not meeting grade requirements and not permitting grade adjustments, correct as required at no direct pay. Failing areas will be isolated longitudinally for purposes of correction for the entire width. When using crushed stone base or recycled concrete base over soil cement base, the individual base layer tolerances shall be as noted above, and the total base course under -thickness shall not exceed 3/4 inch.

301.16.2 1 Soil Cement and Treated Layer Under Asphalt

Concrete: When not permitting grade adjustments, correct under - thickness deficiencies by removing and replacing the full depth of base course in deficient areas with one of the following materials:

301.16.2 2 Asphalt Concrete Base Course: When not

Under -thickness of base courses, except asphalt concrete, shall not vary from plan thickness in excess of 1/2 inch. Correct base course thickness defic iencies in excess of this tolerance as specified herein at no direct pay. When using reconstruction as a method of correction, this tolerance shall apply. Over -thickness may be waived at no direct pay when meeting grade requirements. When not meeting grade requirements and not permitting grade adjustments, correct as required at no direct pay. Failing areas will be isolated longitudinally for purposes of correction for the entire width. When using crushed stone base or recycled concrete base over soil cement base, the individual base layer tolerances shall be as noted above, and the total base course under -thickness shall not exceed 3/4 inch.

301.16.2 1 Soil Cement and Treated Layer Under Asphalt

Concrete: When not permitting grade adjustments, correct under - thickness deficiencies by removing and replacing the full depth of base course in deficient areas with one of the following materials:

301.16.2 2 Asphalt Concrete Base Course: When not

permitting grade adjustments, correct under -thickness in excess of the tolerances given in 502.12 to plan thickness by removing and replacing the full depth of base course. When permitting grade adjustments, correct under -thickness by placing and compacting a 11/4 inch thick minimum supp lemental layer of asphalt concrete complying with Section 502 at no direct pay.

301.16.2 3 Crushed Stone and Recycled Portland Cement

Concrete: When permitting grade adjus tments, correct under -thickness in excess of 1/2 inch to plan thickness by furnishing, placing, mixing, reworking, shaping, and compacting an additional thickness of the same type of base course material. When not permitting grade adjustments, remove and replace the base course.

301.16.3 Width Requirements: The width of the completed base

course will be determined in accordance with DOTD TR 602. Roadway base course width shall not vary from plan width in excess of +6 inches. Shoulder base course width shall not vary from plan width in excess of +3 inches. Do not allow underwidths for shoulder or roadway bases. When the base course for both roadway and shoulders are constructed at the same time, the 6 -inch tolerance will be applied. Correct base course widt h deficiencies in excess of the above tolerances as follows at no expense to the Department:

301.16.3 1 Overwidth: Overwidths on all base courses may be

waived at no direct pay.

301.16.3 2 Underwidth : Correct underwidth of all base courses

to plan width by furnishing and placing additional materials; however, the width of widening materials shall be no less than 12 inches. The thickness of the widening shall be plan thickness. Materials for widening deficient base course shall be one of the following:

301.16.4 Correction of Other Deficiencies. Correct deficiencies

in surface finish, grade, contamination, segregation, soft spots, wet spots, laminations, and other deficiencies at no direct pay. Correct these deficiencies by removing and replacing or as directed.

301.16.5 Grade and Cross -Slope: The finished grade shall be

within ±1/2 inch of the established grade. The cross -slope shall not vary by more than ±0.003 foot/fo ot. permitting grade adjustments, correct under -thickness in excess of the tolerances given in 502.12 to plan thickness by removing and replacing the full depth of base course. When permitting grade adjustments, correct under -thickness by placing and compacting a 11/4 inch thick minimum supp lemental layer of asphalt concrete complying with Section 502 at no direct pay.

301.16.2 3 Crushed Stone and Recycled Portland Cement

Concrete: When permitting grade adjus tments, correct under -thickness in excess of 1/2 inch to plan thickness by furnishing, placing, mixing, reworking, shaping, and compacting an additional thickness of the same type of base course material. When not permitting grade adjustments, remove and replace the base course.

301.16.3 Width Requirements: The width of the completed base

course will be determined in accordance with DOTD TR 602. Roadway base course width shall not vary from plan width in excess of +6 inches. Shoulder base course width shall not vary from plan width in excess of +3 inches. Do not allow underwidths for shoulder or roadway bases. When the base course for both roadway and shoulders are constructed at the same time, the 6 -inch tolerance will be applied. Correct base course widt h deficiencies in excess of the above tolerances as follows at no expense to the Department:

301.16.3 1 Overwidth: Overwidths on all base courses may be

waived at no direct pay.

301.16.3 2 Underwidth : Correct underwidth of all base courses

to plan width by furnishing and placing additional materials; however, the width of widening materials shall be no less than 12 inches. The thickness of the widening shall be plan thickness. Materials for widening deficient base course shall be one of the following:

301.16.4 Correction of Other Deficiencies. Correct deficiencies

in surface finish, grade, contamination, segregation, soft spots, wet spots, laminations, and other deficiencies at no direct pay. Correct these deficiencies by removing and replacing or as directed.

301.16.5 Grade and Cross -Slope: The finished grade shall be

within ±1/2 inch of the established grade. The cross -slope shall not vary by more than ±0.003 foot/fo ot. permitting grade adjustments, correct under -thickness in excess of the tolerances given in 502.12 to plan thickness by removing and replacing the full depth of base course. When permitting grade adjustments, correct under -thickness by placing and compacting a 11/4 inch thick minimum supp lemental layer of asphalt concrete complying with Section 502 at no direct pay.

301.16.2 3 Crushed Stone and Recycled Portland Cement

Concrete: When permitting grade adjus tments, correct under -thickness in excess of 1/2 inch to plan thickness by furnishing, placing, mixing, reworking, shaping, and compacting an additional thickness of the same type of base course material. When not permitting grade adjustments, remove and replace the base course.

301.16.3 Width Requirements: The width of the completed base

course will be determined in accordance with DOTD TR 602. Roadway base course width shall not vary from plan width in excess of +6 inches. Shoulder base course width shall not vary from plan width in excess of +3 inches. Do not allow underwidths for shoulder or roadway bases. When the base course for both roadway and shoulders are constructed at the same time, the 6 -inch tolerance will be applied. Correct base course widt h deficiencies in excess of the above tolerances as follows at no expense to the Department:

301.16.3 1 Overwidth: Overwidths on all base courses may be

waived at no direct pay.

301.16.3 2 Underwidth : Correct underwidth of all base courses

to plan width by furnishing and placing additional materials; however, the width of widening materials shall be no less than 12 inches. The thickness of the widening shall be plan thickness. Materials for widening deficient base course shall be one of the following:

301.16.4 Correction of Other Deficiencies. Correct deficiencies

in surface finish, grade, contamination, segregation, soft spots, wet spots, laminations, and other deficiencies at no direct pay. Correct these deficiencies by removing and replacing or as directed.

301.16.5 Grade and Cross -Slope: The finished grade shall be

within ±1/2 inch of the established grade. The cross -slope shall not vary by more than ±0.003 foot/fo ot. permitting grade adjustments, correct under -thickness in excess of the tolerances given in 502.12 to plan thickness by removing and replacing the full depth of base course. When permitting grade adjustments, correct under -thickness by placing and compacting a 11/4 inch thick minimum supp lemental layer of asphalt concrete complying with Section 502 at no direct pay.

301.16.2 3 Crushed Stone and Recycled Portland Cement

Concrete: When permitting grade adjus tments, correct under -thickness in excess of 1/2 inch to plan thickness by furnishing, placing, mixing, reworking, shaping, and compacting an additional thickness of the same type of base course material. When not permitting grade adjustments, remove and replace the base course.

301.16.3 Width Requirements: The width of the completed base

course will be determined in accordance with DOTD TR 602. Roadway base course width shall not vary from plan width in excess of +6 inches. Shoulder base course width shall not vary from plan width in excess of +3 inches. Do not allow underwidths for shoulder or roadway bases. When the base course for both roadway and shoulders are constructed at the same time, the 6 -inch tolerance will be applied. Correct base course widt h deficiencies in excess of the above tolerances as follows at no expense to the Department:

301.16.3 1 Overwidth: Overwidths on all base courses may be

waived at no direct pay.

301.16.3 2 Underwidth : Correct underwidth of all base courses

to plan width by furnishing and placing additional materials; however, the width of widening materials shall be no less than 12 inches. The thickness of the widening shall be plan thickness. Materials for widening deficient base course shall be one of the following:

301.16.4 Correction of Other Deficiencies. Correct deficiencies

in surface finish, grade, contamination, segregation, soft spots, wet spots, laminations, and other deficiencies at no direct pay. Correct these deficiencies by removing and replacing or as directed.

301.16.5 Grade and Cross -Slope: The finished grade shall be

within ±1/2 inch of the established grade. The cross -slope shall not vary by more than ±0.003 foot/fo ot. permitting grade adjustments, correct under -thickness in excess of the tolerances given in 502.12 to plan thickness by removing and replacing the full depth of base course. When permitting grade adjustments, correct under -thickness by placing and compacting a 11/4 inch thick minimum supp lemental layer of asphalt concrete complying with Section 502 at no direct pay.

301.16.2 3 Crushed Stone and Recycled Portland Cement

Concrete: When permitting grade adjus tments, correct under -thickness in excess of 1/2 inch to plan thickness by furnishing, placing, mixing, reworking, shaping, and compacting an additional thickness of the same type of base course material. When not permitting grade adjustments, remove and replace the base course.

301.16.3 Width Requirements: The width of the completed base

course will be determined in accordance with DOTD TR 602. Roadway base course width shall not vary from plan width in excess of +6 inches. Shoulder base course width shall not vary from plan width in excess of +3 inches. Do not allow underwidths for shoulder or roadway bases. When the base course for both roadway and shoulders are constructed at the same time, the 6 -inch tolerance will be applied. Correct base course widt h deficiencies in excess of the above tolerances as follows at no expense to the Department:

301.16.3 1 Overwidth: Overwidths on all base courses may be

waived at no direct pay.

301.16.3 2 Underwidth : Correct underwidth of all base courses

to plan width by furnishing and placing additional materials; however, the width of widening materials shall be no less than 12 inches. The thickness of the widening shall be plan thickness. Materials for widening deficient base course shall be one of the following:

301.16.4 Correction of Other Deficiencies. Correct deficiencies

in surface finish, grade, contamination, segregation, soft spots, wet spots, laminations, and other deficiencies at no direct pay. Correct these deficiencies by removing and replacing or as directed.

301.16.5 Grade and Cross -Slope: The finished grade shall be

within ±1/2 inch of the established grade. The cross -slope shall not vary by more than ±0.003 foot/fo ot. permitting grade adjustments, correct under -thickness in excess of the tolerances given in 502.12 to plan thickness by removing and replacing the full depth of base course. When permitting grade adjustments, correct under -thickness by placing and compacting a 11/4 inch thick minimum supp lemental layer of asphalt concrete complying with Section 502 at no direct pay.

301.16.2 3 Crushed Stone and Recycled Portland Cement

Concrete: When permitting grade adjus tments, correct under -thickness in excess of 1/2 inch to plan thickness by furnishing, placing, mixing, reworking, shaping, and compacting an additional thickness of the same type of base course material. When not permitting grade adjustments, remove and replace the base course.

301.16.3 Width Requirements: The width of the completed base

course will be determined in accordance with DOTD TR 602. Roadway base course width shall not vary from plan width in excess of +6 inches. Shoulder base course width shall not vary from plan width in excess of +3 inches. Do not allow underwidths for shoulder or roadway bases. When the base course for both roadway and shoulders are constructed at the same time, the 6 -inch tolerance will be applied. Correct base course widt h deficiencies in excess of the above tolerances as follows at no expense to the Department:

301.16.3 1 Overwidth: Overwidths on all base courses may be

waived at no direct pay.

301.16.3 2 Underwidth : Correct underwidth of all base courses

to plan width by furnishing and placing additional materials; however, the width of widening materials shall be no less than 12 inches. The thickness of the widening shall be plan thickness. Materials for widening deficient base course shall be one of the following:

301.16.4 Correction of Other Deficiencies. Correct deficiencies

in surface finish, grade, contamination, segregation, soft spots, wet spots, laminations, and other deficiencies at no direct pay. Correct these deficiencies by removing and replacing or as directed.

301.16.5 Grade and Cross -Slope: The finished grade shall be

within ±1/2 inch of the established grade. The cross -slope shall not vary by more than ±0.003 foot/fo ot. permitting grade adjustments, correct under -thickness in excess of the tolerances given in 502.12 to plan thickness by removing and replacing the full depth of base course. When permitting grade adjustments, correct under -thickness by placing and compacting a 11/4 inch thick minimum supp lemental layer of asphalt concrete complying with Section 502 at no direct pay.

301.16.2 3 Crushed Stone and Recycled Portland Cement

Concrete: When permitting grade adjus tments, correct under -thickness in excess of 1/2 inch to plan thickness by furnishing, placing, mixing, reworking, shaping, and compacting an additional thickness of the same type of base course material. When not permitting grade adjustments, remove and replace the base course.

301.16.3 Width Requirements: The width of the completed base

course will be determined in accordance with DOTD TR 602. Roadway base course width shall not vary from plan width in excess of +6 inches. Shoulder base course width shall not vary from plan width in excess of +3 inches. Do not allow underwidths for shoulder or roadway bases. When the base course for both roadway and shoulders are constructed at the same time, the 6 -inch tolerance will be applied. Correct base course widt h deficiencies in excess of the above tolerances as follows at no expense to the Department:

301.16.3 1 Overwidth: Overwidths on all base courses may be

waived at no direct pay.

301.16.3 2 Underwidth : Correct underwidth of all base courses

to plan width by furnishing and placing additional materials; however, the width of widening materials shall be no less than 12 inches. The thickness of the widening shall be plan thickness. Materials for widening deficient base course shall be one of the following:

301.16.4 Correction of Other Deficiencies. Correct deficiencies

in surface finish, grade, contamination, segregation, soft spots, wet spots, laminations, and other deficiencies at no direct pay. Correct these deficiencies by removing and replacing or as directed.

301.16.5 Grade and Cross -Slope: The finished grade shall be

within ±1/2 inch of the established grade. The cross -slope shall not vary by more than ±0.003 foot/fo ot.

301.17 MEASUREMENT. The quantities of Class I base course for

payment will be the design volumes or areas specified in the plans and adjustments thereto. Design quantities are based on the horizontal dimensions and theoretical compacted thickness of the c ompleted base course shown on the plans. Design quantities will be adjusted if the engineer makes changes to adjust to field conditions, plan errors are proven, or design changes are necessary.

301.18 PAYMENT. Payment for Class I base course will be made at t he

contract unit price, adjusted as specified in 301.16 and the following provisions, which include furnishing and placing required base course materials, portland cement, portland -pozzolan cement, water, grade control, asphalt curing membrane, an d prime coat. When the density test value for the section falls below 95.0 percent, a payment adjustment will be applied in accordance with Table 301-1. Failure to add the specified amount of cement in soil cement will result in a payment adjustment in accordance with Table 301-3 below. For materials other than asphalt concrete, payment adjustments that are made for more than one deficiency shall be cumul ative. Any payment adjustment in asphalt concrete shall be in accordance with Section 50 2 and shall apply to the cubic yard total quantity of base course. Table 301 -3 Payment Adjustment Schedule Percent of Contract Unit Price 100 90 80 50 or Remove and Replace 1 Cement content (Percent by dry weight) less than required 0.0 – 0.1 0.2 – 0.4 0.5 – 1.0 more than 1.0 1 At the option of the Chief Engineer.

301.17 MEASUREMENT. The quantities of Class I base course for

payment will be the design volumes or areas specified in the plans and adjustments thereto. Design quantities are based on the horizontal dimensions and theoretical compacted thickness of the c ompleted base course shown on the plans. Design quantities will be adjusted if the engineer makes changes to adjust to field conditions, plan errors are proven, or design changes are necessary.

301.18 PAYMENT. Payment for Class I base course will be made at t he

contract unit price, adjusted as specified in 301.16 and the following provisions, which include furnishing and placing required base course materials, portland cement, portland -pozzolan cement, water, grade control, asphalt curing membrane, an d prime coat. When the density test value for the section falls below 95.0 percent, a payment adjustment will be applied in accordance with Table 301-1. Failure to add the specified amount of cement in soil cement will result in a payment adjustment in accordance with Table 301-3 below. For materials other than asphalt concrete, payment adjustments that are made for more than one deficiency shall be cumul ative. Any payment adjustment in asphalt concrete shall be in accordance with Section 50 2 and shall apply to the cubic yard total quantity of base course. Table 301 -3 Payment Adjustment Schedule Percent of Contract Unit Price 100 90 80 50 or Remove and Replace 1 Cement content (Percent by dry weight) less than required 0.0 – 0.1 0.2 – 0.4 0.5 – 1.0 more than 1.0 1 At the option of the Chief Engineer.

301.17 MEASUREMENT. The quantities of Class I base course for

payment will be the design volumes or areas specified in the plans and adjustments thereto. Design quantities are based on the horizontal dimensions and theoretical compacted thickness of the c ompleted base course shown on the plans. Design quantities will be adjusted if the engineer makes changes to adjust to field conditions, plan errors are proven, or design changes are necessary.

301.18 PAYMENT. Payment for Class I base course will be made at t he

contract unit price, adjusted as specified in 301.16 and the following provisions, which include furnishing and placing required base course materials, portland cement, portland -pozzolan cement, water, grade control, asphalt curing membrane, an d prime coat. When the density test value for the section falls below 95.0 percent, a payment adjustment will be applied in accordance with Table 301-1. Failure to add the specified amount of cement in soil cement will result in a payment adjustment in accordance with Table 301-3 below. For materials other than asphalt concrete, payment adjustments that are made for more than one deficiency shall be cumul ative. Any payment adjustment in asphalt concrete shall be in accordance with Section 50 2 and shall apply to the cubic yard total quantity of base course. Table 301 -3 Payment Adjustment Schedule Percent of Contract Unit Price 100 90 80 50 or Remove and Replace 1 Cement content (Percent by dry weight) less than required 0.0 – 0.1 0.2 – 0.4 0.5 – 1.0 more than 1.0 1 At the option of the Chief Engineer. Payment will be made under: Item No. Pay Item Pay Unit 301-01 Class I Base Course Cubic Yard 301-02 Class I Base Course ____in Thick Square Yard 301-03 Class I Base Course for Shoulders Cubic Yard 301-04 Class I Base Course for Shoulders _____in Thick Square Yard Section 302 Class II Base Course

302.01 DESCRIPTION. Furnish and place Class II roadway and

shoulder base course on a prepared surface in accordance with these specifications, in conformity with the lines, grades, thickness, and typical sections shown on the plans or established. Control the selection, placement, mixing and compaction of materials so that the completed base course is uniform and conforms to plan dimensions and other acceptance requirements. Quality assurance requirements shall be as specified in the latest edition of the Department’ s publication titled Application of Quality Assurance Specifications for Embankment and Base Course. When not specified, any of the following types may be used: