compound for 4 hours ± 5 min. at 375°F ± 3°F and testing in accordance with ASTM E28, the material shall have a minimum softening point of 190°F as measured by the ring and ball method.
1015.10.4 4 Indentation Resistance: The material, when
tested in accordance with ASTM D2240, Shore Durometer, A2, shall not exceed 40 when tested at 115°F ± 3°F.
1015.10.4 5 Retroreflectivity: All retroreflectivity readings
shall be measured with a geometry of 1.05 degrees observation angle and
88.76 degrees entrance angle as detailed in ASTM E1710.
For 40 mil thermoplastic, initial retroreflectance for the in -place marking shall have a minimum of 250 mcd/lux/sq m for white and 175 m cd/lux/sq m for yellow. The Department may take readings before the expiration of the Guarantee Period in accordance with 104.05 . Readings shall be at least 200 mcd/lux/sq m or greater for white and 125 mcd/lux/sq m or greater for yellow .
1015.10.5 Preformed Thermoplastic Pavement Markings:
White and yellow preformed 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 Approved Materials List products.
1015.10.5 1 Color:
1015.10.5 1.1 Laboratory Performance: Yellow
preformed thermoplastic shall comply with the requirements of ASTM D6628.
1015.10.5 1.2 Field Performance: The Department may
take initial daytime color and luminance factor (Y%) readings, as required by the engineer, after 7 days and within 30 days after installation to verify compliance with ASTM D 6628.
1015.10.5 2 Softening Point: After heating the preformed
thermoplastic material and testing in accordanc e with AASHTO T 250, the material shall have a minimum softening point of 200° F.
1015.10.5 3 Skid Resistance: Preformed thermoplastic
markings shall have a minimum initial friction resistance number of 45 BPN when tested in accordance with ASTM E303.
1015.10.5 4 Retroreflectivity: All retroreflectivity readings
shall be measured with a geometry of 1.05 degrees observation angle and
88.76 degrees entrance angle as detailed in ASTM E1710.
In lieu of measurements, the engineer shall determine by visual nighttime inspection that preformed thermoplastic pavement markings have sufficient reflectance.
1015.11 Preformed Plastic Pa Vement Marking Tape.
1015.11.1 General: Preformed plastic pavement marking tape shall
be from the Approved Materials List and shall comply with ASTM D4505 Retroreflectivity Level I or Level II, except as modified herein. The marking tape shall be Class 2 or 3. The type and color shall be in accordance with the plans and the MUTCD.
1015.11.2 Thickness: All preformed plastic pavement marking tape
shall have a minimu m overall thickness of 0.060 inches when tested without the adhesive.
1015.11.3 Friction Resistance: The surface of the
Retroreflectivity Level II preformed plastic pavement marking tape shall provide a minimum friction resistance value of 35 British Polish Numbe r (BPN) when tested according to ASTM E303. The surface of the Retroreflectivity Level I preformed plastic pavement marking tape shall provide a minimum friction resistance value of 45 BPN when tested according to ASTM E303. Friction values will be calcu lated for the Retroreflectivity Level I material with a raised surface pattern as defined in ASTM D4505 by averaging values taken at downweb and at a 45 degrees angle from downweb.
1015.11.4 Retroreflective Requirements: The preformed plastic
pavement marking tap e shall have the minimum initial specific luminance values shown in Table 1015 -8 when measured in accordance with ASTM D4061.
88.76 degrees entrance angle as detailed in ASTM E1710.
In lieu of measurements, the engineer shall determine by visual nighttime inspection that preformed thermoplastic pavement markings have sufficient reflectance.
1015.11 Preformed Plastic Pa Vement Marking Tape.
1015.11.1 General: Preformed plastic pavement marking tape shall
be from the Approved Materials List and shall comply with ASTM D4505 Retroreflectivity Level I or Level II, except as modified herein. The marking tape shall be Class 2 or 3. The type and color shall be in accordance with the plans and the MUTCD.
1015.11.2 Thickness: All preformed plastic pavement marking tape
shall have a minimu m overall thickness of 0.060 inches when tested without the adhesive.
1015.11.3 Friction Resistance: The surface of the
Retroreflectivity Level II preformed plastic pavement marking tape shall provide a minimum friction resistance value of 35 British Polish Numbe r (BPN) when tested according to ASTM E303. The surface of the Retroreflectivity Level I preformed plastic pavement marking tape shall provide a minimum friction resistance value of 45 BPN when tested according to ASTM E303. Friction values will be calcu lated for the Retroreflectivity Level I material with a raised surface pattern as defined in ASTM D4505 by averaging values taken at downweb and at a 45 degrees angle from downweb.
1015.11.4 Retroreflective Requirements: The preformed plastic
pavement marking tap e shall have the minimum initial specific luminance values shown in Table 1015 -8 when measured in accordance with ASTM D4061.
88.76 degrees entrance angle as detailed in ASTM E1710.
In lieu of measurements, the engineer shall determine by visual nighttime inspection that preformed thermoplastic pavement markings have sufficient reflectance.
1015.11 Preformed Plastic Pa Vement Marking Tape.
1015.11.1 General: Preformed plastic pavement marking tape shall
be from the Approved Materials List and shall comply with ASTM D4505 Retroreflectivity Level I or Level II, except as modified herein. The marking tape shall be Class 2 or 3. The type and color shall be in accordance with the plans and the MUTCD.
1015.11.2 Thickness: All preformed plastic pavement marking tape
shall have a minimu m overall thickness of 0.060 inches when tested without the adhesive.
1015.11.3 Friction Resistance: The surface of the
Retroreflectivity Level II preformed plastic pavement marking tape shall provide a minimum friction resistance value of 35 British Polish Numbe r (BPN) when tested according to ASTM E303. The surface of the Retroreflectivity Level I preformed plastic pavement marking tape shall provide a minimum friction resistance value of 45 BPN when tested according to ASTM E303. Friction values will be calcu lated for the Retroreflectivity Level I material with a raised surface pattern as defined in ASTM D4505 by averaging values taken at downweb and at a 45 degrees angle from downweb.
1015.11.4 Retroreflective Requirements: The preformed plastic
pavement marking tap e shall have the minimum initial specific luminance values shown in Table 1015 -8 when measured in accordance with ASTM D4061.
88.76 degrees entrance angle as detailed in ASTM E1710.
In lieu of measurements, the engineer shall determine by visual nighttime inspection that preformed thermoplastic pavement markings have sufficient reflectance.
1015.11 Preformed Plastic Pa Vement Marking Tape.
1015.11.1 General: Preformed plastic pavement marking tape shall
be from the Approved Materials List and shall comply with ASTM D4505 Retroreflectivity Level I or Level II, except as modified herein. The marking tape shall be Class 2 or 3. The type and color shall be in accordance with the plans and the MUTCD.
1015.11.2 Thickness: All preformed plastic pavement marking tape
shall have a minimu m overall thickness of 0.060 inches when tested without the adhesive.
1015.11.3 Friction Resistance: The surface of the
Retroreflectivity Level II preformed plastic pavement marking tape shall provide a minimum friction resistance value of 35 British Polish Numbe r (BPN) when tested according to ASTM E303. The surface of the Retroreflectivity Level I preformed plastic pavement marking tape shall provide a minimum friction resistance value of 45 BPN when tested according to ASTM E303. Friction values will be calcu lated for the Retroreflectivity Level I material with a raised surface pattern as defined in ASTM D4505 by averaging values taken at downweb and at a 45 degrees angle from downweb.
1015.11.4 Retroreflective Requirements: The preformed plastic
pavement marking tap e shall have the minimum initial specific luminance values shown in Table 1015 -8 when measured in accordance with ASTM D4061.
88.76 degrees entrance angle as detailed in ASTM E1710.
In lieu of measurements, the engineer shall determine by visual nighttime inspection that preformed thermoplastic pavement markings have sufficient reflectance.
1015.11 Preformed Plastic Pa Vement Marking Tape.
1015.11.1 General: Preformed plastic pavement marking tape shall
be from the Approved Materials List and shall comply with ASTM D4505 Retroreflectivity Level I or Level II, except as modified herein. The marking tape shall be Class 2 or 3. The type and color shall be in accordance with the plans and the MUTCD.
1015.11.2 Thickness: All preformed plastic pavement marking tape
shall have a minimu m overall thickness of 0.060 inches when tested without the adhesive.
1015.11.3 Friction Resistance: The surface of the
Retroreflectivity Level II preformed plastic pavement marking tape shall provide a minimum friction resistance value of 35 British Polish Numbe r (BPN) when tested according to ASTM E303. The surface of the Retroreflectivity Level I preformed plastic pavement marking tape shall provide a minimum friction resistance value of 45 BPN when tested according to ASTM E303. Friction values will be calcu lated for the Retroreflectivity Level I material with a raised surface pattern as defined in ASTM D4505 by averaging values taken at downweb and at a 45 degrees angle from downweb.
1015.11.4 Retroreflective Requirements: The preformed plastic
pavement marking tap e shall have the minimum initial specific luminance values shown in Table 1015 -8 when measured in accordance with ASTM D4061.
88.76 degrees entrance angle as detailed in ASTM E1710.
In lieu of measurements, the engineer shall determine by visual nighttime inspection that preformed thermoplastic pavement markings have sufficient reflectance.
1015.11 Preformed Plastic Pa Vement Marking Tape.
1015.11.1 General: Preformed plastic pavement marking tape shall
be from the Approved Materials List and shall comply with ASTM D4505 Retroreflectivity Level I or Level II, except as modified herein. The marking tape shall be Class 2 or 3. The type and color shall be in accordance with the plans and the MUTCD.
1015.11.2 Thickness: All preformed plastic pavement marking tape
shall have a minimu m overall thickness of 0.060 inches when tested without the adhesive.
1015.11.3 Friction Resistance: The surface of the
Retroreflectivity Level II preformed plastic pavement marking tape shall provide a minimum friction resistance value of 35 British Polish Numbe r (BPN) when tested according to ASTM E303. The surface of the Retroreflectivity Level I preformed plastic pavement marking tape shall provide a minimum friction resistance value of 45 BPN when tested according to ASTM E303. Friction values will be calcu lated for the Retroreflectivity Level I material with a raised surface pattern as defined in ASTM D4505 by averaging values taken at downweb and at a 45 degrees angle from downweb.
1015.11.4 Retroreflective Requirements: The preformed plastic
pavement marking tap e shall have the minimum initial specific luminance values shown in Table 1015 -8 when measured in accordance with ASTM D4061. Table 1015 -8 Specific Luminance of Preformed Plastic Tape Type Observation Angle, degrees Entrance Angle, degrees Specific Luminance (mcd/sq m/lx) White Yellow Retroreflectivity Level I 1.05 88.76 500 300 Retroreflectivity Level II 1.05 88.76 250 175
1015.11.5 Durability Requirements: The Retroreflectivity Level I
preformed plastic pavement marking tape shall show no appreciable fading, lifting or shrinkage for at least 4 years after placement for longitudinal lines and at least 2 years after placement for symbols and legends. The Retroreflectivity Level I preformed plastic pavement marking tape shall also retain the f ollowing reflectance values for the time period detailed in Table 1015 -9. Table 1015 -9 Retained Specific Luminance for Retroreflectivity Level I Preformed Plastic Pavement Marking Tape Time Observation Angle, degrees Entrance Angle, degrees Specific Luminance (mcd/sq m/lx) White Yellow 1 year 1.05 88.76 400 240 4 years (2 years for symbols and legend) 1.05 88.76 100 100
1015.11.6 Plastic Pavement Marking Tape Guaranty
(Retroreflectivity Level I): If the plastic pavement marking tape fails to comply with these performance and durability requirements within 4 years for Retroreflectivity Level I, the manufacturer shall replace the plastic pavement marking material at no cost to the Department. Table 1015 -8 Specific Luminance of Preformed Plastic Tape Type Observation Angle, degrees Entrance Angle, degrees Specific Luminance (mcd/sq m/lx) White Yellow Retroreflectivity Level I 1.05 88.76 500 300 Retroreflectivity Level II 1.05 88.76 250 175
1015.11.5 Durability Requirements: The Retroreflectivity Level I
preformed plastic pavement marking tape shall show no appreciable fading, lifting or shrinkage for at least 4 years after placement for longitudinal lines and at least 2 years after placement for symbols and legends. The Retroreflectivity Level I preformed plastic pavement marking tape shall also retain the f ollowing reflectance values for the time period detailed in Table 1015 -9. Table 1015 -9 Retained Specific Luminance for Retroreflectivity Level I Preformed Plastic Pavement Marking Tape Time Observation Angle, degrees Entrance Angle, degrees Specific Luminance (mcd/sq m/lx) White Yellow 1 year 1.05 88.76 400 240 4 years (2 years for symbols and legend) 1.05 88.76 100 100
1015.11.6 Plastic Pavement Marking Tape Guaranty
(Retroreflectivity Level I): If the plastic pavement marking tape fails to comply with these performance and durability requirements within 4 years for Retroreflectivity Level I, the manufacturer shall replace the plastic pavement marking material at no cost to the Department. Table 1015 -8 Specific Luminance of Preformed Plastic Tape Type Observation Angle, degrees Entrance Angle, degrees Specific Luminance (mcd/sq m/lx) White Yellow Retroreflectivity Level I 1.05 88.76 500 300 Retroreflectivity Level II 1.05 88.76 250 175
1015.11.5 Durability Requirements: The Retroreflectivity Level I
preformed plastic pavement marking tape shall show no appreciable fading, lifting or shrinkage for at least 4 years after placement for longitudinal lines and at least 2 years after placement for symbols and legends. The Retroreflectivity Level I preformed plastic pavement marking tape shall also retain the f ollowing reflectance values for the time period detailed in Table 1015 -9. Table 1015 -9 Retained Specific Luminance for Retroreflectivity Level I Preformed Plastic Pavement Marking Tape Time Observation Angle, degrees Entrance Angle, degrees Specific Luminance (mcd/sq m/lx) White Yellow 1 year 1.05 88.76 400 240 4 years (2 years for symbols and legend) 1.05 88.76 100 100
1015.11.6 Plastic Pavement Marking Tape Guaranty
(Retroreflectivity Level I): If the plastic pavement marking tape fails to comply with these performance and durability requirements within 4 years for Retroreflectivity Level I, the manufacturer shall replace the plastic pavement marking material at no cost to the Department.
1015.12 TRAFFIC PAINT. The contractor shall use water -borne traffic
paint. Each paint container shall bear a label with the name and address of manufacturer, trade name or trademark, type of paint, number of gallons, batch number and date of manufacture. Paints shall be from the Approved Materials List. Paints shall show no excessive settling, caking or increase in viscosity during 6 months of storage, and shall be a suitable consistency for standard spray gun application . An infrared curve shall be generated in accordance with DOTD TR 610 and compared with the standard curve made during the initial qualification process. For yellow paint material, the manufacturer shall determine the type and the amount of yellow pigment, providing the final product meets all of the requirements of this specification. However, the pigment for yellow paint 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.
1015.12.1 Water Borne Traffic Paint: This material shall be a
rapid setting waterborne compound suitable for use with hot application equipment. The paint shall contain Dow Fastrack HD -21A, Arkema DT - 400 acrylic emulsion, or approved equal. The material shall meet the requirements of Table 1015 -10 and Table 1015 -11.
1015.12 TRAFFIC PAINT. The contractor shall use water -borne traffic
paint. Each paint container shall bear a label with the name and address of manufacturer, trade name or trademark, type of paint, number of gallons, batch number and date of manufacture. Paints shall be from the Approved Materials List. Paints shall show no excessive settling, caking or increase in viscosity during 6 months of storage, and shall be a suitable consistency for standard spray gun application . An infrared curve shall be generated in accordance with DOTD TR 610 and compared with the standard curve made during the initial qualification process. For yellow paint material, the manufacturer shall determine the type and the amount of yellow pigment, providing the final product meets all of the requirements of this specification. However, the pigment for yellow paint 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.
1015.12.1 Water Borne Traffic Paint: This material shall be a
rapid setting waterborne compound suitable for use with hot application equipment. The paint shall contain Dow Fastrack HD -21A, Arkema DT - 400 acrylic emulsion, or approved equal. The material shall meet the requirements of Table 1015 -10 and Table 1015 -11.
1015.12 TRAFFIC PAINT. The contractor shall use water -borne traffic
paint. Each paint container shall bear a label with the name and address of manufacturer, trade name or trademark, type of paint, number of gallons, batch number and date of manufacture. Paints shall be from the Approved Materials List. Paints shall show no excessive settling, caking or increase in viscosity during 6 months of storage, and shall be a suitable consistency for standard spray gun application . An infrared curve shall be generated in accordance with DOTD TR 610 and compared with the standard curve made during the initial qualification process. For yellow paint material, the manufacturer shall determine the type and the amount of yellow pigment, providing the final product meets all of the requirements of this specification. However, the pigment for yellow paint 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.
1015.12.1 Water Borne Traffic Paint: This material shall be a
rapid setting waterborne compound suitable for use with hot application equipment. The paint shall contain Dow Fastrack HD -21A, Arkema DT - 400 acrylic emulsion, or approved equal. The material shall meet the requirements of Table 1015 -10 and Table 1015 -11. Table 1015 -10 Water Borne Traffic Paint Physical Properties Requirements Property Test Method Min. Max. pH ASTM E70 9.9 — Viscosity, at 25°C Krebs Unit ASTM D562 78 95 Drying Time, minutes1 ASTM D711 — 10 Total Solids, % by mass ASTM D2369 73 79 Percent Pigment2 ASTM D3723 55 62 Non-volatiles in Vehicle, % by weight ASTM D215 43 — Weight per Gallon, lb/gal ASTM D1475 — — White 13.7 — Yellow 13.1 — Daylight Reflectance, % ASTM E1349 White 80 — Yellow 50 — Fineness of Grind ASTM D1210 3 — Color 3 Pass Shelf Life, months 12 — Pigment Composition 4 Pass Infrared Spectroscopy (IR) DOTD TR 610 Pass 1Drying time to no track - Paint applied at 15 mils (375 μm) wet on the road surface with paint heated to 120 -150°F (50 -65°C) shall not show tracking when a standard size automobile crosses in a passing maneuver at 3 minutes. 2 Do not apply any theoretical empirical factors in determining the percent of the paint. Do not calculate percent pigment by adding back the burned -off organic constituents of the pigment. 3Color (without glass beads) - Yellow paint shall comply with the requirements of Table 1015 -11 when tested in accordance with ASTM E1349. White shall be a clean, bright, untinted binder. 4The white paint shall contain a minimum of 1.0 pound per gallon (1 20 g/L) of rutile titanium di oxide (Ti02) as determined using DOTD TR 523. The rutile titanium dioxide shall comply with ASTM D476. Table 1015 -11 Water Borne Traffic Paint Color Specification Limits (Daytime) Color 1 2 3 4 x y x y x y x y Yellow 0.493 0.473 0.518 0.464 0.486 0.428 0.469 0.452 (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.)
1015.12.2 Initial Retroreflectivity: All retroreflectivity readings
shall be measured with a geometry of 1.05 degrees observation angle and
88.76 degrees entrance angle as detailed in ASTM E1710.
For traffic paint, initial retroreflectance shall have a minimum of 250 mcd/lux/sq m for white and 17 5 mcd/lux/sq m for yellow. Glass beads shall be uniformly distributed to ensure that the full width of the line is visible at night.
1015.12.3 Initial Daytime Color and Luminance Factor: For
traffic paint, test the initial daytime color and luminance factor (Y%) according to ASTM D6628. The Department may take readings 7 to 30 days after installation to verify compliance with ASTM D6628.
1015.13 GLASS BEADS FOR PAVE MENT MARKINGS. Glass
beads for use with painted traffic striping and flat thermoplastic striping shall c onform to the specification requirements of AASHTO M 247, as modified herein.
1015.13.1 Moisture Resistance - Flow Characteristics: The
beads shall not absorb moisture in storage. They shall remain free of clusters and lumps and shall flow freely from the dispen sing equipment.
1015.13.2 Gradation: Glass beads shall meet the gradation
requirements of AASHTO M 247 for the specified Type, when tested in accordance with ASTM D1214.
1015.13.2 1 Painted Traffic Striping: Glass beads for
permanent painted traffic striping shall meet th e gradation requirements of AASHTO M 247 Type 3. For temporary painted traffic striping, the contractor may determine which beads to use provided the line is reflective for the expected line life. Table 1015 -12, “Gradation of 1.9 Refractive Index Glass Be ads” may be used as an alternate on chip seal. Lime Treatment
304.01 DESCRIPTION. Construct one or more courses of a mixture of
lime, soil, or soil -aggregate, and water in accordance with these specifications and Table 304-2, in conformity with the lines, grades, thickness and sections shown on the plans. Lime treatment will be designated as Type B, C, D, or E. Use Type B for base or subbase. Use Type C for conditioning for cement treatm ent or stabilization. Use Type D for working table treatment under or within an embankment. Use Type E for conditioning and drying of subgrades under a base course.
304.02 MATERIALS. Materials shall comply with the following
sections and subsections: Emulsified Asphalt Section 1002 Water 1018.01 Lime 1018.02 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. Submit a dust control plan to address weather, sight clearance, operational procedures, traffic control , and any other project specific concerns. Failure to maintain sight clearance will result in the engineer stopping contractor operations. The Department will identify dust sensitive areas in the plans. In these specific areas, the dust control plan must also include environmental requirements. In order to meet air quality standards, the contractor may be required to use central plant mixing, lime -slurry, or granular lime in dust sensitive areas at no direct pay.
304.03 EQUIPMENT. Furnish and maintain equipment necessary to
produce a finished product meeting specification requirements. Use an approved in -place mixer meet ing the requirements of 303.03 for Type B and C treatments. Use an approved in -place mixer meeting the Lime Treatment
304.01 DESCRIPTION. Construct one or more courses of a mixture of
lime, soil, or soil -aggregate, and water in accordance with these specifications and Table 304-2, in conformity with the lines, grades, thickness and sections shown on the plans. Lime treatment will be designated as Type B, C, D, or E. Use Type B for base or subbase. Use Type C for conditioning for cement treatm ent or stabilization. Use Type D for working table treatment under or within an embankment. Use Type E for conditioning and drying of subgrades under a base course.
304.02 MATERIALS. Materials shall comply with the following
sections and subsections: Emulsified Asphalt Section 1002 Water 1018.01 Lime 1018.02 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. Submit a dust control plan to address weather, sight clearance, operational procedures, traffic control , and any other project specific concerns. Failure to maintain sight clearance will result in the engineer stopping contractor operations. The Department will identify dust sensitive areas in the plans. In these specific areas, the dust control plan must also include environmental requirements. In order to meet air quality standards, the contractor may be required to use central plant mixing, lime -slurry, or granular lime in dust sensitive areas at no direct pay.
304.03 EQUIPMENT. Furnish and maintain equipment necessary to
produce a finished product meeting specification requirements. Use an approved in -place mixer meet ing the requirements of 303.03 for Type B and C treatments. Use an approved in -place mixer meeting the Lime Treatment
304.01 DESCRIPTION. Construct one or more courses of a mixture of
lime, soil, or soil -aggregate, and water in accordance with these specifications and Table 304-2, in conformity with the lines, grades, thickness and sections shown on the plans. Lime treatment will be designated as Type B, C, D, or E. Use Type B for base or subbase. Use Type C for conditioning for cement treatm ent or stabilization. Use Type D for working table treatment under or within an embankment. Use Type E for conditioning and drying of subgrades under a base course.
304.02 MATERIALS. Materials shall comply with the following
sections and subsections: Emulsified Asphalt Section 1002 Water 1018.01 Lime 1018.02 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. Submit a dust control plan to address weather, sight clearance, operational procedures, traffic control , and any other project specific concerns. Failure to maintain sight clearance will result in the engineer stopping contractor operations. The Department will identify dust sensitive areas in the plans. In these specific areas, the dust control plan must also include environmental requirements. In order to meet air quality standards, the contractor may be required to use central plant mixing, lime -slurry, or granular lime in dust sensitive areas at no direct pay.
304.03 EQUIPMENT. Furnish and maintain equipment necessary to
produce a finished product meeting specification requirements. Use an approved in -place mixer meet ing the requirements of 303.03 for Type B and C treatments. Use an approved in -place mixer meeting the requirements of 303.03 for Types D and E treatments unless the engineer allows other equipment.
304.04 GENERAL CONSTRUCTION REQUIREMENTS. Protect
dry lime from moisture prior to use. Add water as needed during mixing and remixi ng operations, during the curing period, and to keep the cured material uniformly moist until covered. When applying granular quicklime in dry form, take precautions to prevent injury to persons, livestock, and plants. Immediately collect quicklime spilled or deposited outside areas designated for treatment and bury or satisfactorily slake. Do not apply lime on a frozen foundation or when the ambient air temperature is below 35°F.
304.04.1 Type B Treatment: Incorporate lime in the following
sequence: Spread the lime; initially mix; water; seal and mellow for at least 48 hours; and then mix until pulverization requirements are met; compact; finish; and maintain in accordance with 304.09 . Determine the percent of lime for Type B treatment in accordance with DOTD TR 416. After lime treatment, the treated soil shall have a maximum Liquid Limit of 40 and a maximum PI of 10.
304.04.2 Type C Treatment: Incorporate lime in the following
sequence: Spread the lime; initially mix; water; seal and mellow for a minimum of 48 hours; then mix until pulverization requirements are met; compact; finish; and maintain. The percent of lime for Type C treatment will be as required by th e plans or as directed.
304.04.3 Type D Treatment: Spread and mix one increment of
lime with materials to be treated, water as required, and compact to the satisfaction of the engineer. The percent of lime for Type D treatment will be as required by the plans o r as directed.
304.04.4 Type E Treatment: Spread and mix one increment of lime
with materials to be treated and compacted, and finish in accordance with Section 203 . Unl ess specified, determine the percent of lime for Type E treatment in accordance with DOTD TR 416.
304.05 SPREADING AND MIXING. Incorporate the specified
percentage of lime. When not specified, the District Laboratory will requirements of 303.03 for Types D and E treatments unless the engineer allows other equipment.
304.04 GENERAL CONSTRUCTION REQUIREMENTS. Protect
dry lime from moisture prior to use. Add water as needed during mixing and remixi ng operations, during the curing period, and to keep the cured material uniformly moist until covered. When applying granular quicklime in dry form, take precautions to prevent injury to persons, livestock, and plants. Immediately collect quicklime spilled or deposited outside areas designated for treatment and bury or satisfactorily slake. Do not apply lime on a frozen foundation or when the ambient air temperature is below 35°F.
304.04.1 Type B Treatment: Incorporate lime in the following
sequence: Spread the lime; initially mix; water; seal and mellow for at least 48 hours; and then mix until pulverization requirements are met; compact; finish; and maintain in accordance with 304.09 . Determine the percent of lime for Type B treatment in accordance with DOTD TR 416. After lime treatment, the treated soil shall have a maximum Liquid Limit of 40 and a maximum PI of 10.
304.04.2 Type C Treatment: Incorporate lime in the following
sequence: Spread the lime; initially mix; water; seal and mellow for a minimum of 48 hours; then mix until pulverization requirements are met; compact; finish; and maintain. The percent of lime for Type C treatment will be as required by th e plans or as directed.
304.04.3 Type D Treatment: Spread and mix one increment of
lime with materials to be treated, water as required, and compact to the satisfaction of the engineer. The percent of lime for Type D treatment will be as required by the plans o r as directed.
304.04.4 Type E Treatment: Spread and mix one increment of lime
with materials to be treated and compacted, and finish in accordance with Section 203 . Unl ess specified, determine the percent of lime for Type E treatment in accordance with DOTD TR 416.
304.05 SPREADING AND MIXING. Incorporate the specified
percentage of lime. When not specified, the District Laboratory will requirements of 303.03 for Types D and E treatments unless the engineer allows other equipment.
304.04 GENERAL CONSTRUCTION REQUIREMENTS. Protect
dry lime from moisture prior to use. Add water as needed during mixing and remixi ng operations, during the curing period, and to keep the cured material uniformly moist until covered. When applying granular quicklime in dry form, take precautions to prevent injury to persons, livestock, and plants. Immediately collect quicklime spilled or deposited outside areas designated for treatment and bury or satisfactorily slake. Do not apply lime on a frozen foundation or when the ambient air temperature is below 35°F.
304.04.1 Type B Treatment: Incorporate lime in the following
sequence: Spread the lime; initially mix; water; seal and mellow for at least 48 hours; and then mix until pulverization requirements are met; compact; finish; and maintain in accordance with 304.09 . Determine the percent of lime for Type B treatment in accordance with DOTD TR 416. After lime treatment, the treated soil shall have a maximum Liquid Limit of 40 and a maximum PI of 10.
304.04.2 Type C Treatment: Incorporate lime in the following
sequence: Spread the lime; initially mix; water; seal and mellow for a minimum of 48 hours; then mix until pulverization requirements are met; compact; finish; and maintain. The percent of lime for Type C treatment will be as required by th e plans or as directed.
304.04.3 Type D Treatment: Spread and mix one increment of
lime with materials to be treated, water as required, and compact to the satisfaction of the engineer. The percent of lime for Type D treatment will be as required by the plans o r as directed.
304.04.4 Type E Treatment: Spread and mix one increment of lime
with materials to be treated and compacted, and finish in accordance with Section 203 . Unl ess specified, determine the percent of lime for Type E treatment in accordance with DOTD TR 416.
304.05 SPREADING AND MIXING. Incorporate the specified
percentage of lime. When not specified, the District Laboratory will requirements of 303.03 for Types D and E treatments unless the engineer allows other equipment.
304.04 GENERAL CONSTRUCTION REQUIREMENTS. Protect
dry lime from moisture prior to use. Add water as needed during mixing and remixi ng operations, during the curing period, and to keep the cured material uniformly moist until covered. When applying granular quicklime in dry form, take precautions to prevent injury to persons, livestock, and plants. Immediately collect quicklime spilled or deposited outside areas designated for treatment and bury or satisfactorily slake. Do not apply lime on a frozen foundation or when the ambient air temperature is below 35°F.
304.04.1 Type B Treatment: Incorporate lime in the following
sequence: Spread the lime; initially mix; water; seal and mellow for at least 48 hours; and then mix until pulverization requirements are met; compact; finish; and maintain in accordance with 304.09 . Determine the percent of lime for Type B treatment in accordance with DOTD TR 416. After lime treatment, the treated soil shall have a maximum Liquid Limit of 40 and a maximum PI of 10.
304.04.2 Type C Treatment: Incorporate lime in the following
sequence: Spread the lime; initially mix; water; seal and mellow for a minimum of 48 hours; then mix until pulverization requirements are met; compact; finish; and maintain. The percent of lime for Type C treatment will be as required by th e plans or as directed.
304.04.3 Type D Treatment: Spread and mix one increment of
lime with materials to be treated, water as required, and compact to the satisfaction of the engineer. The percent of lime for Type D treatment will be as required by the plans o r as directed.
304.04.4 Type E Treatment: Spread and mix one increment of lime
with materials to be treated and compacted, and finish in accordance with Section 203 . Unl ess specified, determine the percent of lime for Type E treatment in accordance with DOTD TR 416.
304.05 SPREADING AND MIXING. Incorporate the specified
percentage of lime. When not specified, the District Laboratory will requirements of 303.03 for Types D and E treatments unless the engineer allows other equipment.
304.04 GENERAL CONSTRUCTION REQUIREMENTS. Protect
dry lime from moisture prior to use. Add water as needed during mixing and remixi ng operations, during the curing period, and to keep the cured material uniformly moist until covered. When applying granular quicklime in dry form, take precautions to prevent injury to persons, livestock, and plants. Immediately collect quicklime spilled or deposited outside areas designated for treatment and bury or satisfactorily slake. Do not apply lime on a frozen foundation or when the ambient air temperature is below 35°F.
304.04.1 Type B Treatment: Incorporate lime in the following
sequence: Spread the lime; initially mix; water; seal and mellow for at least 48 hours; and then mix until pulverization requirements are met; compact; finish; and maintain in accordance with 304.09 . Determine the percent of lime for Type B treatment in accordance with DOTD TR 416. After lime treatment, the treated soil shall have a maximum Liquid Limit of 40 and a maximum PI of 10.
304.04.2 Type C Treatment: Incorporate lime in the following
sequence: Spread the lime; initially mix; water; seal and mellow for a minimum of 48 hours; then mix until pulverization requirements are met; compact; finish; and maintain. The percent of lime for Type C treatment will be as required by th e plans or as directed.
304.04.3 Type D Treatment: Spread and mix one increment of
lime with materials to be treated, water as required, and compact to the satisfaction of the engineer. The percent of lime for Type D treatment will be as required by the plans o r as directed.
304.04.4 Type E Treatment: Spread and mix one increment of lime
with materials to be treated and compacted, and finish in accordance with Section 203 . Unl ess specified, determine the percent of lime for Type E treatment in accordance with DOTD TR 416.
304.05 SPREADING AND MIXING. Incorporate the specified
percentage of lime. When not specified, the District Laboratory will requirements of 303.03 for Types D and E treatments unless the engineer allows other equipment.
304.04 GENERAL CONSTRUCTION REQUIREMENTS. Protect
dry lime from moisture prior to use. Add water as needed during mixing and remixi ng operations, during the curing period, and to keep the cured material uniformly moist until covered. When applying granular quicklime in dry form, take precautions to prevent injury to persons, livestock, and plants. Immediately collect quicklime spilled or deposited outside areas designated for treatment and bury or satisfactorily slake. Do not apply lime on a frozen foundation or when the ambient air temperature is below 35°F.
304.04.1 Type B Treatment: Incorporate lime in the following
sequence: Spread the lime; initially mix; water; seal and mellow for at least 48 hours; and then mix until pulverization requirements are met; compact; finish; and maintain in accordance with 304.09 . Determine the percent of lime for Type B treatment in accordance with DOTD TR 416. After lime treatment, the treated soil shall have a maximum Liquid Limit of 40 and a maximum PI of 10.
304.04.2 Type C Treatment: Incorporate lime in the following
sequence: Spread the lime; initially mix; water; seal and mellow for a minimum of 48 hours; then mix until pulverization requirements are met; compact; finish; and maintain. The percent of lime for Type C treatment will be as required by th e plans or as directed.
304.04.3 Type D Treatment: Spread and mix one increment of
lime with materials to be treated, water as required, and compact to the satisfaction of the engineer. The percent of lime for Type D treatment will be as required by the plans o r as directed.
304.04.4 Type E Treatment: Spread and mix one increment of lime
with materials to be treated and compacted, and finish in accordance with Section 203 . Unl ess specified, determine the percent of lime for Type E treatment in accordance with DOTD TR 416.
304.05 SPREADING AND MIXING. Incorporate the specified
percentage of lime. When not specified, the District Laboratory will requirements of 303.03 for Types D and E treatments unless the engineer allows other equipment.
304.04 GENERAL CONSTRUCTION REQUIREMENTS. Protect
dry lime from moisture prior to use. Add water as needed during mixing and remixi ng operations, during the curing period, and to keep the cured material uniformly moist until covered. When applying granular quicklime in dry form, take precautions to prevent injury to persons, livestock, and plants. Immediately collect quicklime spilled or deposited outside areas designated for treatment and bury or satisfactorily slake. Do not apply lime on a frozen foundation or when the ambient air temperature is below 35°F.
304.04.1 Type B Treatment: Incorporate lime in the following
sequence: Spread the lime; initially mix; water; seal and mellow for at least 48 hours; and then mix until pulverization requirements are met; compact; finish; and maintain in accordance with 304.09 . Determine the percent of lime for Type B treatment in accordance with DOTD TR 416. After lime treatment, the treated soil shall have a maximum Liquid Limit of 40 and a maximum PI of 10.
304.04.2 Type C Treatment: Incorporate lime in the following
sequence: Spread the lime; initially mix; water; seal and mellow for a minimum of 48 hours; then mix until pulverization requirements are met; compact; finish; and maintain. The percent of lime for Type C treatment will be as required by th e plans or as directed.
304.04.3 Type D Treatment: Spread and mix one increment of
lime with materials to be treated, water as required, and compact to the satisfaction of the engineer. The percent of lime for Type D treatment will be as required by the plans o r as directed.
304.04.4 Type E Treatment: Spread and mix one increment of lime
with materials to be treated and compacted, and finish in accordance with Section 203 . Unl ess specified, determine the percent of lime for Type E treatment in accordance with DOTD TR 416.
304.05 SPREADING AND MIXING. Incorporate the specified
percentage of lime. When not specified, the District Laboratory will determine the required percentage of lime in accordance with DOTD TR 416. Use a unit weight of 35 pounds per cubic foot to compute the required application rate of hydrated lime or granular quicklime regardless of the actual unit weight of the lime used. Furnish lime in bags or bulk and distribute in powder or granular form or as slurry in the required proportion. Prevent dry lime from blowing by adding water or by other suitable means. Uniformly spread lime and mix with the soil to the width and depth shown on the plans or as directed. The Department will determine lime spread rate in accordance with DOTD TR 436. Discontinue any procedure that results in excessive loss or displacement of lime. Process areas on the same day that lime application is made. Reject any lime not processed within 6 hours and lime lost or damaged before incorporation due to rain, wind, or other cause, and deduct from measured quantities. Replace all rejected lime. Payment will not be made more than once for lime treatment of a section of roadway.
304.05.1 Type B Mixing: After the 48 -hour mellowing period, keep
the lime treated mixture moist and manipulate with an in -place mixer until the pulverization requirements of 304.06 have been met.
304.05.2 Type C Mixing: After the 48 -hour mellowing period,
thoroughly manipulate the lime treated mixture with an in -place mixer to the satisfaction of the engineer. The mixture shall meet the pulverization require ments of 304.06 prior to subsequent stabilization or treatment with portland cement.
304.05.3 Types D and E: Mix with an in -place mixer unless the
engineer approves othe r equipment.
304.06 PULVERIZATION. For Types B and C treatment, the pulverized
mixture, when tested in accordance with DOTD TR 431, shall meet the gradation requirements in Table 304 -1. Table 304 -1 Gradation Requirements for Types B & C Lime Treatment
U.S. Sieve, Inches Percent Passing By Weight 3/4 95 No. 4 50 determine the required percentage of lime in accordance with DOTD TR 416. Use a unit weight of 35 pounds per cubic foot to compute the required application rate of hydrated lime or granular quicklime regardless of the actual unit weight of the lime used. Furnish lime in bags or bulk and distribute in powder or granular form or as slurry in the required proportion. Prevent dry lime from blowing by adding water or by other suitable means. Uniformly spread lime and mix with the soil to the width and depth shown on the plans or as directed. The Department will determine lime spread rate in accordance with DOTD TR 436. Discontinue any procedure that results in excessive loss or displacement of lime. Process areas on the same day that lime application is made. Reject any lime not processed within 6 hours and lime lost or damaged before incorporation due to rain, wind, or other cause, and deduct from measured quantities. Replace all rejected lime. Payment will not be made more than once for lime treatment of a section of roadway.
304.05.1 Type B Mixing: After the 48 -hour mellowing period, keep
the lime treated mixture moist and manipulate with an in -place mixer until the pulverization requirements of 304.06 have been met.
304.05.2 Type C Mixing: After the 48 -hour mellowing period,
thoroughly manipulate the lime treated mixture with an in -place mixer to the satisfaction of the engineer. The mixture shall meet the pulverization require ments of 304.06 prior to subsequent stabilization or treatment with portland cement.
304.05.3 Types D and E: Mix with an in -place mixer unless the
engineer approves othe r equipment.
304.06 PULVERIZATION. For Types B and C treatment, the pulverized
mixture, when tested in accordance with DOTD TR 431, shall meet the gradation requirements in Table 304 -1. Table 304 -1 Gradation Requirements for Types B & C Lime Treatment
U.S. Sieve, Inches Percent Passing By Weight 3/4 95 No. 4 50 determine the required percentage of lime in accordance with DOTD TR 416. Use a unit weight of 35 pounds per cubic foot to compute the required application rate of hydrated lime or granular quicklime regardless of the actual unit weight of the lime used. Furnish lime in bags or bulk and distribute in powder or granular form or as slurry in the required proportion. Prevent dry lime from blowing by adding water or by other suitable means. Uniformly spread lime and mix with the soil to the width and depth shown on the plans or as directed. The Department will determine lime spread rate in accordance with DOTD TR 436. Discontinue any procedure that results in excessive loss or displacement of lime. Process areas on the same day that lime application is made. Reject any lime not processed within 6 hours and lime lost or damaged before incorporation due to rain, wind, or other cause, and deduct from measured quantities. Replace all rejected lime. Payment will not be made more than once for lime treatment of a section of roadway.
304.05.1 Type B Mixing: After the 48 -hour mellowing period, keep
the lime treated mixture moist and manipulate with an in -place mixer until the pulverization requirements of 304.06 have been met.
304.05.2 Type C Mixing: After the 48 -hour mellowing period,
thoroughly manipulate the lime treated mixture with an in -place mixer to the satisfaction of the engineer. The mixture shall meet the pulverization require ments of 304.06 prior to subsequent stabilization or treatment with portland cement.
304.05.3 Types D and E: Mix with an in -place mixer unless the
engineer approves othe r equipment.
304.06 PULVERIZATION. For Types B and C treatment, the pulverized
mixture, when tested in accordance with DOTD TR 431, shall meet the gradation requirements in Table 304 -1. Table 304 -1 Gradation Requirements for Types B & C Lime Treatment
U.S. Sieve, Inches Percent Passing By Weight 3/4 95 No. 4 50 determine the required percentage of lime in accordance with DOTD TR 416. Use a unit weight of 35 pounds per cubic foot to compute the required application rate of hydrated lime or granular quicklime regardless of the actual unit weight of the lime used. Furnish lime in bags or bulk and distribute in powder or granular form or as slurry in the required proportion. Prevent dry lime from blowing by adding water or by other suitable means. Uniformly spread lime and mix with the soil to the width and depth shown on the plans or as directed. The Department will determine lime spread rate in accordance with DOTD TR 436. Discontinue any procedure that results in excessive loss or displacement of lime. Process areas on the same day that lime application is made. Reject any lime not processed within 6 hours and lime lost or damaged before incorporation due to rain, wind, or other cause, and deduct from measured quantities. Replace all rejected lime. Payment will not be made more than once for lime treatment of a section of roadway.
304.05.1 Type B Mixing: After the 48 -hour mellowing period, keep
the lime treated mixture moist and manipulate with an in -place mixer until the pulverization requirements of 304.06 have been met.
304.05.2 Type C Mixing: After the 48 -hour mellowing period,
thoroughly manipulate the lime treated mixture with an in -place mixer to the satisfaction of the engineer. The mixture shall meet the pulverization require ments of 304.06 prior to subsequent stabilization or treatment with portland cement.
304.05.3 Types D and E: Mix with an in -place mixer unless the
engineer approves othe r equipment.
304.06 PULVERIZATION. For Types B and C treatment, the pulverized
mixture, when tested in accordance with DOTD TR 431, shall meet the gradation requirements in Table 304 -1. Table 304 -1 Gradation Requirements for Types B & C Lime Treatment
U.S. Sieve, Inches Percent Passing By Weight 3/4 95 No. 4 50 determine the required percentage of lime in accordance with DOTD TR 416. Use a unit weight of 35 pounds per cubic foot to compute the required application rate of hydrated lime or granular quicklime regardless of the actual unit weight of the lime used. Furnish lime in bags or bulk and distribute in powder or granular form or as slurry in the required proportion. Prevent dry lime from blowing by adding water or by other suitable means. Uniformly spread lime and mix with the soil to the width and depth shown on the plans or as directed. The Department will determine lime spread rate in accordance with DOTD TR 436. Discontinue any procedure that results in excessive loss or displacement of lime. Process areas on the same day that lime application is made. Reject any lime not processed within 6 hours and lime lost or damaged before incorporation due to rain, wind, or other cause, and deduct from measured quantities. Replace all rejected lime. Payment will not be made more than once for lime treatment of a section of roadway.
304.05.1 Type B Mixing: After the 48 -hour mellowing period, keep
the lime treated mixture moist and manipulate with an in -place mixer until the pulverization requirements of 304.06 have been met.
304.05.2 Type C Mixing: After the 48 -hour mellowing period,
thoroughly manipulate the lime treated mixture with an in -place mixer to the satisfaction of the engineer. The mixture shall meet the pulverization require ments of 304.06 prior to subsequent stabilization or treatment with portland cement.
304.05.3 Types D and E: Mix with an in -place mixer unless the
engineer approves othe r equipment.
304.06 PULVERIZATION. For Types B and C treatment, the pulverized
mixture, when tested in accordance with DOTD TR 431, shall meet the gradation requirements in Table 304 -1. Table 304 -1 Gradation Requirements for Types B & C Lime Treatment
U.S. Sieve, Inches Percent Passing By Weight 3/4 95 No. 4 50 Meet pulverization requirements for Type B and C treatments prior to final compaction and finishing.
304.07 Compacting and Finishing.
304.07.1 Type B: After meeting the pulverization requirement,
uniformly compact the mixture to at least 95.0 percent of maximum dry density. Determine the maximum dry density in accordance with DOTD TR 415 or TR 418 and in -place density in accordance with DOTD TR 401. Complete compaction and finishing operations within 6 hours after meeting pulverization requirements. The Department will perform one density test per 1000 linear feet of roadway (or 2000 linear feet) of shoulder constructed separately in accordance with DOTD TR 401. At places inaccessible to rollers, such as edges adjacent to curb and gutter sections, compact the mixture using devices that will obtain uniform compaction to required density without damage to adjacent structures. Reconstruct any section not meeting the required density in accordance with these specifications at no direct pay. Reconstruction shall include the addition of the specified amount of lime. The final finish shall meet grade and cross -slope requirements and shall have a smooth, uniform, closely -knit surface, free from ridges, waves, loose material, or laitance.
304.07.2 Type C: Shape and uniformly compact Type C lime
conditioned materials to the required sections. Uniformly compact the mixture to at least 93.0 percent of maximum dry density. Determine the maximum dry density in accordance with DOTD TR 415 or TR 418 and in - place density in accordance with DOTD TR 401. When conditions, such as a yielding subgrade, make this impractical or detrimental, establish an optimum rolling pattern to the satisfaction of the engineer.
304.07.3 Type D: Uniformly compact and finish Type D lime treated
materials to the satisfaction of the engineer. Make reasonable efforts to conform to the compaction requirements of 304.07.1 . When conditions, such as a yielding subgrade, make this impractical or detrimental, establish an optimum rolling pattern to the satisfaction of the e ngineer.
304.07.4 Type E: Compact and finish Type E lime treated materials
in accordance with Section 203 . Meet pulverization requirements for Type B and C treatments prior to final compaction and finishing.
304.07 Compacting and Finishing.
304.07.1 Type B: After meeting the pulverization requirement,
uniformly compact the mixture to at least 95.0 percent of maximum dry density. Determine the maximum dry density in accordance with DOTD TR 415 or TR 418 and in -place density in accordance with DOTD TR 401. Complete compaction and finishing operations within 6 hours after meeting pulverization requirements. The Department will perform one density test per 1000 linear feet of roadway (or 2000 linear feet) of shoulder constructed separately in accordance with DOTD TR 401. At places inaccessible to rollers, such as edges adjacent to curb and gutter sections, compact the mixture using devices that will obtain uniform compaction to required density without damage to adjacent structures. Reconstruct any section not meeting the required density in accordance with these specifications at no direct pay. Reconstruction shall include the addition of the specified amount of lime. The final finish shall meet grade and cross -slope requirements and shall have a smooth, uniform, closely -knit surface, free from ridges, waves, loose material, or laitance.
304.07.2 Type C: Shape and uniformly compact Type C lime
conditioned materials to the required sections. Uniformly compact the mixture to at least 93.0 percent of maximum dry density. Determine the maximum dry density in accordance with DOTD TR 415 or TR 418 and in - place density in accordance with DOTD TR 401. When conditions, such as a yielding subgrade, make this impractical or detrimental, establish an optimum rolling pattern to the satisfaction of the engineer.
304.07.3 Type D: Uniformly compact and finish Type D lime treated
materials to the satisfaction of the engineer. Make reasonable efforts to conform to the compaction requirements of 304.07.1 . When conditions, such as a yielding subgrade, make this impractical or detrimental, establish an optimum rolling pattern to the satisfaction of the e ngineer.
304.07.4 Type E: Compact and finish Type E lime treated materials
in accordance with Section 203 . Meet pulverization requirements for Type B and C treatments prior to final compaction and finishing.
304.07 Compacting and Finishing.
304.07.1 Type B: After meeting the pulverization requirement,
uniformly compact the mixture to at least 95.0 percent of maximum dry density. Determine the maximum dry density in accordance with DOTD TR 415 or TR 418 and in -place density in accordance with DOTD TR 401. Complete compaction and finishing operations within 6 hours after meeting pulverization requirements. The Department will perform one density test per 1000 linear feet of roadway (or 2000 linear feet) of shoulder constructed separately in accordance with DOTD TR 401. At places inaccessible to rollers, such as edges adjacent to curb and gutter sections, compact the mixture using devices that will obtain uniform compaction to required density without damage to adjacent structures. Reconstruct any section not meeting the required density in accordance with these specifications at no direct pay. Reconstruction shall include the addition of the specified amount of lime. The final finish shall meet grade and cross -slope requirements and shall have a smooth, uniform, closely -knit surface, free from ridges, waves, loose material, or laitance.
304.07.2 Type C: Shape and uniformly compact Type C lime
conditioned materials to the required sections. Uniformly compact the mixture to at least 93.0 percent of maximum dry density. Determine the maximum dry density in accordance with DOTD TR 415 or TR 418 and in - place density in accordance with DOTD TR 401. When conditions, such as a yielding subgrade, make this impractical or detrimental, establish an optimum rolling pattern to the satisfaction of the engineer.
304.07.3 Type D: Uniformly compact and finish Type D lime treated
materials to the satisfaction of the engineer. Make reasonable efforts to conform to the compaction requirements of 304.07.1 . When conditions, such as a yielding subgrade, make this impractical or detrimental, establish an optimum rolling pattern to the satisfaction of the e ngineer.
304.07.4 Type E: Compact and finish Type E lime treated materials
in accordance with Section 203 . Meet pulverization requirements for Type B and C treatments prior to final compaction and finishing.
304.07 Compacting and Finishing.
304.07.1 Type B: After meeting the pulverization requirement,
uniformly compact the mixture to at least 95.0 percent of maximum dry density. Determine the maximum dry density in accordance with DOTD TR 415 or TR 418 and in -place density in accordance with DOTD TR 401. Complete compaction and finishing operations within 6 hours after meeting pulverization requirements. The Department will perform one density test per 1000 linear feet of roadway (or 2000 linear feet) of shoulder constructed separately in accordance with DOTD TR 401. At places inaccessible to rollers, such as edges adjacent to curb and gutter sections, compact the mixture using devices that will obtain uniform compaction to required density without damage to adjacent structures. Reconstruct any section not meeting the required density in accordance with these specifications at no direct pay. Reconstruction shall include the addition of the specified amount of lime. The final finish shall meet grade and cross -slope requirements and shall have a smooth, uniform, closely -knit surface, free from ridges, waves, loose material, or laitance.
304.07.2 Type C: Shape and uniformly compact Type C lime
conditioned materials to the required sections. Uniformly compact the mixture to at least 93.0 percent of maximum dry density. Determine the maximum dry density in accordance with DOTD TR 415 or TR 418 and in - place density in accordance with DOTD TR 401. When conditions, such as a yielding subgrade, make this impractical or detrimental, establish an optimum rolling pattern to the satisfaction of the engineer.
304.07.3 Type D: Uniformly compact and finish Type D lime treated
materials to the satisfaction of the engineer. Make reasonable efforts to conform to the compaction requirements of 304.07.1 . When conditions, such as a yielding subgrade, make this impractical or detrimental, establish an optimum rolling pattern to the satisfaction of the e ngineer.
304.07.4 Type E: Compact and finish Type E lime treated materials
in accordance with Section 203 . Meet pulverization requirements for Type B and C treatments prior to final compaction and finishing.
304.07 Compacting and Finishing.
304.07.1 Type B: After meeting the pulverization requirement,
uniformly compact the mixture to at least 95.0 percent of maximum dry density. Determine the maximum dry density in accordance with DOTD TR 415 or TR 418 and in -place density in accordance with DOTD TR 401. Complete compaction and finishing operations within 6 hours after meeting pulverization requirements. The Department will perform one density test per 1000 linear feet of roadway (or 2000 linear feet) of shoulder constructed separately in accordance with DOTD TR 401. At places inaccessible to rollers, such as edges adjacent to curb and gutter sections, compact the mixture using devices that will obtain uniform compaction to required density without damage to adjacent structures. Reconstruct any section not meeting the required density in accordance with these specifications at no direct pay. Reconstruction shall include the addition of the specified amount of lime. The final finish shall meet grade and cross -slope requirements and shall have a smooth, uniform, closely -knit surface, free from ridges, waves, loose material, or laitance.
304.07.2 Type C: Shape and uniformly compact Type C lime
conditioned materials to the required sections. Uniformly compact the mixture to at least 93.0 percent of maximum dry density. Determine the maximum dry density in accordance with DOTD TR 415 or TR 418 and in - place density in accordance with DOTD TR 401. When conditions, such as a yielding subgrade, make this impractical or detrimental, establish an optimum rolling pattern to the satisfaction of the engineer.
304.07.3 Type D: Uniformly compact and finish Type D lime treated
materials to the satisfaction of the engineer. Make reasonable efforts to conform to the compaction requirements of 304.07.1 . When conditions, such as a yielding subgrade, make this impractical or detrimental, establish an optimum rolling pattern to the satisfaction of the e ngineer.
304.07.4 Type E: Compact and finish Type E lime treated materials
in accordance with Section 203 . Meet pulverization requirements for Type B and C treatments prior to final compaction and finishing.
304.07 Compacting and Finishing.
304.07.1 Type B: After meeting the pulverization requirement,
uniformly compact the mixture to at least 95.0 percent of maximum dry density. Determine the maximum dry density in accordance with DOTD TR 415 or TR 418 and in -place density in accordance with DOTD TR 401. Complete compaction and finishing operations within 6 hours after meeting pulverization requirements. The Department will perform one density test per 1000 linear feet of roadway (or 2000 linear feet) of shoulder constructed separately in accordance with DOTD TR 401. At places inaccessible to rollers, such as edges adjacent to curb and gutter sections, compact the mixture using devices that will obtain uniform compaction to required density without damage to adjacent structures. Reconstruct any section not meeting the required density in accordance with these specifications at no direct pay. Reconstruction shall include the addition of the specified amount of lime. The final finish shall meet grade and cross -slope requirements and shall have a smooth, uniform, closely -knit surface, free from ridges, waves, loose material, or laitance.
304.07.2 Type C: Shape and uniformly compact Type C lime
conditioned materials to the required sections. Uniformly compact the mixture to at least 93.0 percent of maximum dry density. Determine the maximum dry density in accordance with DOTD TR 415 or TR 418 and in - place density in accordance with DOTD TR 401. When conditions, such as a yielding subgrade, make this impractical or detrimental, establish an optimum rolling pattern to the satisfaction of the engineer.
304.07.3 Type D: Uniformly compact and finish Type D lime treated
materials to the satisfaction of the engineer. Make reasonable efforts to conform to the compaction requirements of 304.07.1 . When conditions, such as a yielding subgrade, make this impractical or detrimental, establish an optimum rolling pattern to the satisfaction of the e ngineer.
304.07.4 Type E: Compact and finish Type E lime treated materials
in accordance with Section 203 . When traffic conditions warrant, and an adequate rolling pattern has been established that demonstrates density has been achieved, the engineer may reduce density frequency testing requirements to expedite construction. A change in subgrade materials will require testing at the original frequency until a new rolling pattern is established.
304.08 QUALITY CONTROL. Construction methods shall prevent
contamination, segregation, soft spots, wet spots, laminations, and other deficiencies. Perform such tests as necessary to adequately control the work. Construct a completed course that is uniform and conforms to the acceptance requirements.
304.09 PROTECTION, CURING, AND MAINTENANCE. Maintain
these treatments to prevent damage to the lime treated layer as directed. For Type B Treatment, protect the material against rapid drying for 72 hours by applying an asphalt curing membrane, complying with Section 506 , after finishing operations have been completed. Place the application immediately following smooth rolling and maintain it adequately during the curing period. Maintain Type B Lime Treatmen t in accordance with 303.09 .
304.10 Dimensional Tolerances (Type B Treatment).
304.10.1 General: The Department will check thickness and width
of completed lime treated courses for acceptance in accordance with DOTD TR 602. Delineate areas not meeting tolerances specified herein and correct to plan dimensions by scarifying, adding lime, remixing, and recompacting deficient areas at no direct pay.
304.10.2 Thickness Requirements: Do not allow under -thickness
to exceed 3/4 inch and over-thickness to exceed 1 inch.
304.10.3 Width Requirements: Do not allow roadway base course
width to vary from plan width in excess of +6 inches. Shoulder base course width shall not vary from plan width in ex cess of +3 inches. No under -widths are allowed for shoulder or roadway bases. When the base course for roadway and shoulders are constructed at the same time, the 6-inch width tolerance will be applied. Correct base course width deficiencies in excess o f foregoing tolerances at no expense to the Department. When traffic conditions warrant, and an adequate rolling pattern has been established that demonstrates density has been achieved, the engineer may reduce density frequency testing requirements to expedite construction. A change in subgrade materials will require testing at the original frequency until a new rolling pattern is established.
304.08 QUALITY CONTROL. Construction methods shall prevent
contamination, segregation, soft spots, wet spots, laminations, and other deficiencies. Perform such tests as necessary to adequately control the work. Construct a completed course that is uniform and conforms to the acceptance requirements.
304.09 PROTECTION, CURING, AND MAINTENANCE. Maintain
these treatments to prevent damage to the lime treated layer as directed. For Type B Treatment, protect the material against rapid drying for 72 hours by applying an asphalt curing membrane, complying with Section 506 , after finishing operations have been completed. Place the application immediately following smooth rolling and maintain it adequately during the curing period. Maintain Type B Lime Treatmen t in accordance with 303.09 .
304.10 Dimensional Tolerances (Type B Treatment).
304.10.1 General: The Department will check thickness and width
of completed lime treated courses for acceptance in accordance with DOTD TR 602. Delineate areas not meeting tolerances specified herein and correct to plan dimensions by scarifying, adding lime, remixing, and recompacting deficient areas at no direct pay.
304.10.2 Thickness Requirements: Do not allow under -thickness
to exceed 3/4 inch and over-thickness to exceed 1 inch.
304.10.3 Width Requirements: Do not allow roadway base course
width to vary from plan width in excess of +6 inches. Shoulder base course width shall not vary from plan width in ex cess of +3 inches. No under -widths are allowed for shoulder or roadway bases. When the base course for roadway and shoulders are constructed at the same time, the 6-inch width tolerance will be applied. Correct base course width deficiencies in excess o f foregoing tolerances at no expense to the Department. When traffic conditions warrant, and an adequate rolling pattern has been established that demonstrates density has been achieved, the engineer may reduce density frequency testing requirements to expedite construction. A change in subgrade materials will require testing at the original frequency until a new rolling pattern is established.
304.08 QUALITY CONTROL. Construction methods shall prevent
contamination, segregation, soft spots, wet spots, laminations, and other deficiencies. Perform such tests as necessary to adequately control the work. Construct a completed course that is uniform and conforms to the acceptance requirements.
304.09 PROTECTION, CURING, AND MAINTENANCE. Maintain
these treatments to prevent damage to the lime treated layer as directed. For Type B Treatment, protect the material against rapid drying for 72 hours by applying an asphalt curing membrane, complying with Section 506 , after finishing operations have been completed. Place the application immediately following smooth rolling and maintain it adequately during the curing period. Maintain Type B Lime Treatmen t in accordance with 303.09 .
304.10 Dimensional Tolerances (Type B Treatment).
304.10.1 General: The Department will check thickness and width
of completed lime treated courses for acceptance in accordance with DOTD TR 602. Delineate areas not meeting tolerances specified herein and correct to plan dimensions by scarifying, adding lime, remixing, and recompacting deficient areas at no direct pay.
304.10.2 Thickness Requirements: Do not allow under -thickness
to exceed 3/4 inch and over-thickness to exceed 1 inch.
304.10.3 Width Requirements: Do not allow roadway base course
width to vary from plan width in excess of +6 inches. Shoulder base course width shall not vary from plan width in ex cess of +3 inches. No under -widths are allowed for shoulder or roadway bases. When the base course for roadway and shoulders are constructed at the same time, the 6-inch width tolerance will be applied. Correct base course width deficiencies in excess o f foregoing tolerances at no expense to the Department. When traffic conditions warrant, and an adequate rolling pattern has been established that demonstrates density has been achieved, the engineer may reduce density frequency testing requirements to expedite construction. A change in subgrade materials will require testing at the original frequency until a new rolling pattern is established.
304.08 QUALITY CONTROL. Construction methods shall prevent
contamination, segregation, soft spots, wet spots, laminations, and other deficiencies. Perform such tests as necessary to adequately control the work. Construct a completed course that is uniform and conforms to the acceptance requirements.
304.09 PROTECTION, CURING, AND MAINTENANCE. Maintain
these treatments to prevent damage to the lime treated layer as directed. For Type B Treatment, protect the material against rapid drying for 72 hours by applying an asphalt curing membrane, complying with Section 506 , after finishing operations have been completed. Place the application immediately following smooth rolling and maintain it adequately during the curing period. Maintain Type B Lime Treatmen t in accordance with 303.09 .
304.10 Dimensional Tolerances (Type B Treatment).
304.10.1 General: The Department will check thickness and width
of completed lime treated courses for acceptance in accordance with DOTD TR 602. Delineate areas not meeting tolerances specified herein and correct to plan dimensions by scarifying, adding lime, remixing, and recompacting deficient areas at no direct pay.
304.10.2 Thickness Requirements: Do not allow under -thickness
to exceed 3/4 inch and over-thickness to exceed 1 inch.
304.10.3 Width Requirements: Do not allow roadway base course
width to vary from plan width in excess of +6 inches. Shoulder base course width shall not vary from plan width in ex cess of +3 inches. No under -widths are allowed for shoulder or roadway bases. When the base course for roadway and shoulders are constructed at the same time, the 6-inch width tolerance will be applied. Correct base course width deficiencies in excess o f foregoing tolerances at no expense to the Department. When traffic conditions warrant, and an adequate rolling pattern has been established that demonstrates density has been achieved, the engineer may reduce density frequency testing requirements to expedite construction. A change in subgrade materials will require testing at the original frequency until a new rolling pattern is established.
304.08 QUALITY CONTROL. Construction methods shall prevent
contamination, segregation, soft spots, wet spots, laminations, and other deficiencies. Perform such tests as necessary to adequately control the work. Construct a completed course that is uniform and conforms to the acceptance requirements.
304.09 PROTECTION, CURING, AND MAINTENANCE. Maintain
these treatments to prevent damage to the lime treated layer as directed. For Type B Treatment, protect the material against rapid drying for 72 hours by applying an asphalt curing membrane, complying with Section 506 , after finishing operations have been completed. Place the application immediately following smooth rolling and maintain it adequately during the curing period. Maintain Type B Lime Treatmen t in accordance with 303.09 .
304.10 Dimensional Tolerances (Type B Treatment).
304.10.1 General: The Department will check thickness and width
of completed lime treated courses for acceptance in accordance with DOTD TR 602. Delineate areas not meeting tolerances specified herein and correct to plan dimensions by scarifying, adding lime, remixing, and recompacting deficient areas at no direct pay.
304.10.2 Thickness Requirements: Do not allow under -thickness
to exceed 3/4 inch and over-thickness to exceed 1 inch.
304.10.3 Width Requirements: Do not allow roadway base course
width to vary from plan width in excess of +6 inches. Shoulder base course width shall not vary from plan width in ex cess of +3 inches. No under -widths are allowed for shoulder or roadway bases. When the base course for roadway and shoulders are constructed at the same time, the 6-inch width tolerance will be applied. Correct base course width deficiencies in excess o f foregoing tolerances at no expense to the Department. When traffic conditions warrant, and an adequate rolling pattern has been established that demonstrates density has been achieved, the engineer may reduce density frequency testing requirements to expedite construction. A change in subgrade materials will require testing at the original frequency until a new rolling pattern is established.
304.08 QUALITY CONTROL. Construction methods shall prevent
contamination, segregation, soft spots, wet spots, laminations, and other deficiencies. Perform such tests as necessary to adequately control the work. Construct a completed course that is uniform and conforms to the acceptance requirements.
304.09 PROTECTION, CURING, AND MAINTENANCE. Maintain
these treatments to prevent damage to the lime treated layer as directed. For Type B Treatment, protect the material against rapid drying for 72 hours by applying an asphalt curing membrane, complying with Section 506 , after finishing operations have been completed. Place the application immediately following smooth rolling and maintain it adequately during the curing period. Maintain Type B Lime Treatmen t in accordance with 303.09 .
304.10 Dimensional Tolerances (Type B Treatment).
304.10.1 General: The Department will check thickness and width
of completed lime treated courses for acceptance in accordance with DOTD TR 602. Delineate areas not meeting tolerances specified herein and correct to plan dimensions by scarifying, adding lime, remixing, and recompacting deficient areas at no direct pay.
304.10.2 Thickness Requirements: Do not allow under -thickness
to exceed 3/4 inch and over-thickness to exceed 1 inch.
304.10.3 Width Requirements: Do not allow roadway base course
width to vary from plan width in excess of +6 inches. Shoulder base course width shall not vary from plan width in ex cess of +3 inches. No under -widths are allowed for shoulder or roadway bases. When the base course for roadway and shoulders are constructed at the same time, the 6-inch width tolerance will be applied. Correct base course width deficiencies in excess o f foregoing tolerances at no expense to the Department. When traffic conditions warrant, and an adequate rolling pattern has been established that demonstrates density has been achieved, the engineer may reduce density frequency testing requirements to expedite construction. A change in subgrade materials will require testing at the original frequency until a new rolling pattern is established.
304.08 QUALITY CONTROL. Construction methods shall prevent
contamination, segregation, soft spots, wet spots, laminations, and other deficiencies. Perform such tests as necessary to adequately control the work. Construct a completed course that is uniform and conforms to the acceptance requirements.
304.09 PROTECTION, CURING, AND MAINTENANCE. Maintain
these treatments to prevent damage to the lime treated layer as directed. For Type B Treatment, protect the material against rapid drying for 72 hours by applying an asphalt curing membrane, complying with Section 506 , after finishing operations have been completed. Place the application immediately following smooth rolling and maintain it adequately during the curing period. Maintain Type B Lime Treatmen t in accordance with 303.09 .
304.10 Dimensional Tolerances (Type B Treatment).
304.10.1 General: The Department will check thickness and width
of completed lime treated courses for acceptance in accordance with DOTD TR 602. Delineate areas not meeting tolerances specified herein and correct to plan dimensions by scarifying, adding lime, remixing, and recompacting deficient areas at no direct pay.
304.10.2 Thickness Requirements: Do not allow under -thickness
to exceed 3/4 inch and over-thickness to exceed 1 inch.
304.10.3 Width Requirements: Do not allow roadway base course
width to vary from plan width in excess of +6 inches. Shoulder base course width shall not vary from plan width in ex cess of +3 inches. No under -widths are allowed for shoulder or roadway bases. When the base course for roadway and shoulders are constructed at the same time, the 6-inch width tolerance will be applied. Correct base course width deficiencies in excess o f foregoing tolerances at no expense to the Department.
304.11 MEASUREMENT. Lime will be measured by the ton. When
furnishing lime in bags, the number of bags used and the weight per bag will be used for measurement. When furnishing lime in bulk, the contrac tor shall furnish certified weights for each transport load. The quantities of lime treatment for payment will be the design areas as specified on the plans and adjustments thereto. Design quantities are based on the horizontal dimensions of the completed lime treatment shown on the plans. Design quantities will be adjusted if the engineer makes changes to adjust to field conditions, design errors are proven, or design changes are necessary. Water and asphalt curing materials will not be measured for payment.
304.12 PAYMENT. Payment for lime will be made at the contract unit
price per ton. If using quicklime in a slurry, payment will be made at the unit price for hydrated lime after converting the quicklime to the equivalent weight of hydrated lime by mul tiplying the weight of quicklime by 1.32 and then multiplying that product by the purity of the lime. Payment for lime treatment will be made at the contract unit prices per square yard. Type B lime treatment will be adjusted as specified in Section 506 and Section 1002 for specification deviations of asphalt curing membrane . The Materials and Testing Section will provide the payment adjustment percentage for properties of asphalt materials . Payment will be made under: Item No. Pay Item Pay Unit 304-01 Lime Ton 304-02 Lime Treatment (Type B) ___ in Thick Square Yard 304-03 Lime Treatment (Type C) ___ in Thick Square Yard 304-04 Lime Treatment (Type D) ___ in Thick Square Yard 304-05 Lime Treatment (Type E) ___ in Thick Square Yard
304.11 MEASUREMENT. Lime will be measured by the ton. When
furnishing lime in bags, the number of bags used and the weight per bag will be used for measurement. When furnishing lime in bulk, the contrac tor shall furnish certified weights for each transport load. The quantities of lime treatment for payment will be the design areas as specified on the plans and adjustments thereto. Design quantities are based on the horizontal dimensions of the completed lime treatment shown on the plans. Design quantities will be adjusted if the engineer makes changes to adjust to field conditions, design errors are proven, or design changes are necessary. Water and asphalt curing materials will not be measured for payment.
304.12 PAYMENT. Payment for lime will be made at the contract unit
price per ton. If using quicklime in a slurry, payment will be made at the unit price for hydrated lime after converting the quicklime to the equivalent weight of hydrated lime by mul tiplying the weight of quicklime by 1.32 and then multiplying that product by the purity of the lime. Payment for lime treatment will be made at the contract unit prices per square yard. Type B lime treatment will be adjusted as specified in Section 506 and Section 1002 for specification deviations of asphalt curing membrane . The Materials and Testing Section will provide the payment adjustment percentage for properties of asphalt materials . Payment will be made under: Item No. Pay Item Pay Unit 304-01 Lime Ton 304-02 Lime Treatment (Type B) ___ in Thick Square Yard 304-03 Lime Treatment (Type C) ___ in Thick Square Yard 304-04 Lime Treatment (Type D) ___ in Thick Square Yard 304-05 Lime Treatment (Type E) ___ in Thick Square Yard
304.11 MEASUREMENT. Lime will be measured by the ton. When
furnishing lime in bags, the number of bags used and the weight per bag will be used for measurement. When furnishing lime in bulk, the contrac tor shall furnish certified weights for each transport load. The quantities of lime treatment for payment will be the design areas as specified on the plans and adjustments thereto. Design quantities are based on the horizontal dimensions of the completed lime treatment shown on the plans. Design quantities will be adjusted if the engineer makes changes to adjust to field conditions, design errors are proven, or design changes are necessary. Water and asphalt curing materials will not be measured for payment.
304.12 PAYMENT. Payment for lime will be made at the contract unit
price per ton. If using quicklime in a slurry, payment will be made at the unit price for hydrated lime after converting the quicklime to the equivalent weight of hydrated lime by mul tiplying the weight of quicklime by 1.32 and then multiplying that product by the purity of the lime. Payment for lime treatment will be made at the contract unit prices per square yard. Type B lime treatment will be adjusted as specified in Section 506 and Section 1002 for specification deviations of asphalt curing membrane . The Materials and Testing Section will provide the payment adjustment percentage for properties of asphalt materials . Payment will be made under: Item No. Pay Item Pay Unit 304-01 Lime Ton 304-02 Lime Treatment (Type B) ___ in Thick Square Yard 304-03 Lime Treatment (Type C) ___ in Thick Square Yard 304-04 Lime Treatment (Type D) ___ in Thick Square Yard 304-05 Lime Treatment (Type E) ___ in Thick Square Yard Table 304-2 Types of Lime Treatment B Base or Subbase 1. One application of lime
2.Initial mixing
3.48-hour mellowing or aging period
4.Pulverization 1
5.Density control
6.Minimum thickness and width
7.72-hour cure with asphalt curing membrane C Conditioning for Cement Treatment or Stabilization 1. One application of lime
2.Initial mixing
3.48-hour mellowing or aging period
4.Pulverization 1
5.Density control
6.No cure required D Working Table 1. One application of lime
2.Mixing 2
3.Compact to engineer ’s satisfaction
4.No cure required E Conditioning and Drying (Subgrades Under a Base Course) 1. One application of lime per lift
2.Mixing 2
3.Embankment construction requirements including density
4.No cure required 1 In-place mixer shall be required. 2 In-Place mixer shall be required unless the engineer approves other equipment. Section 305 Subgrade Layer
305.01 DESCRIPTION. Subgrade layer is primarily used for new
roadway construction. Treat subgrade soil materials with portland cement, portland -pozzolan blended hydraulic cement, or a combination of portland cement and lime, or construct a subgrade layer of stone, recycled portland cement concrete, blended calcium sulfate, or asphalt concrete in accordance with plan details or as directed. When requiring traffic to be placed on the completed, unsurfaced subgrade layer, or when the subgrade layer falls below natural ground, blended calcium sulfate will not be allowed. When not specified, the subgrade layer may be composed of any of the types of materials listed above, at the option of the contractor. Use the same subgrade layer throughout the project unless otherwise approved by the project engineer. The plans may limit the types of subgrade layer allowed. These specifications set forth the minimum requirements for construction of the subgrade layer; however, construct a subgrade layer that will provide adequate support for construction equipment and processes. 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. Submit a dust control plan to address weather, sight clearance, operational procedures, traffic control, and any other project specific concerns. Failure to maintain sight clearance will result in the engineer stopping contractor operations. The Department will identify the dust-sensitive areas on the plans. In order to meet air quality standards, the contractor may be required to use central plant mixing of cement or cement and lime treated mixtures in dust sensitive areas at no direct pay.
Source: Louisiana Standard Specifications for Roads and Bridges, 2016 Edition. Pages 1091–1095 of 1,145.