5-03Crack and Joint Sealing

5-03 Crack and Joint Sealing5-03 Crack and Joint Sealing

5-03.1 Description

This Work consists of preparing and sealing cracks and joints in pavement.

5-03.2 Materials

Materials shall meet the requirements of the following sections: Cationic Emulsified Asphalt 9-02.1(6) Hot Poured Sealant for Cement Concrete Pavement 9-04.2(1)A1 Hot Poured Sealant for Bituminous Pavement 9-04.2(1)A2 Sand Slurry for Bituminous Pavement 9-04.2(1)B Polymer Modified Asphalt Mastic 9-04.2(1)C Poured Rubber Joint Sealer 9-04.2(2) Closed Cell Foam Backer Rod 9-04.2(3)A

5-03.3 C onstruction Requirements

5-03.3(1) G eneral

Under no circumstances shall crack or joint sealing materials be placed during times of precipitation, or when the pavement temperature is lower than the minimum allowable pavement placement temperature. The minimum allowable pavement placement temperature shall be whichever of the following is higher: 1.40°F , or 2.T he manufacturer’s recommendation. The Contractor shall ensure that cracks and joints are thoroughly clean, dry, and free of all loose and foreign material immediately prior to being filled. When saw cutting or routing is required, additional cleaning shall be required to remove all remaining dust, debris, and condensate from the joint. Unless there is a direct conflict between the manufacturer’s recommendations and the Contract requirements for crack and joint sealing, the Contractor shall follow the manufacturer’s recommendations. Unless otherwise specified, crack and joint sealing materials shall completely fill the crack to the bottom of the required saw cut, routed slot, or cleaned crack. When backer rod is required, the joint shall not be filled below the backer rod. Care shall be taken to avoid air pockets when placing these materials. The height to which the material shall fill the joint or crack shall be as specified for the application. The material shall be applied in two or more layers, if necessary. The material shall be applied under sufficient pressure to fill the groove from bottom to top. In all cases in which saw cuts or cleaning with a saw are required, the saw cut shall be made with a diamond-embedded saw blade.

5-03.3(2) S ubmittals

In addition to the requirements of Section 1-06, the Contractor shall furnish a Type 2 Working Drawing of the manufacturer’s product information and recommendations to the Engineer prior to the start of Work. The manufacturer’s recommendations shall include the heating time and temperatures, allowable storage time and temperatures after initial heating, allowable reheating criteria, and application temperature range.

5-03.3(3) C rack Sealing Bituminous Pavement

Where shown in the Plans, all cracks in bituminous pavement which are ¼ inch in width and greater shall be sealed. M 41-10 Page 5-19 Crack and Joint Sealing 5-035-03.3(3)A Cleaning, Drying, and Debris Removal When the bituminous pavement temperature in the cracks is above 40°F but less than 50°F (or higher if required by the manufacturer’s recommendations), or there is moisture present in the cracks, the Contractor shall use a hot compressed air lance to dry and warm the pavement surfaces within the crack to 50° F (or higher if required by the manufacturer’s recommendations) immediately prior to sealing the crack. When requested by the Engineer, the Contractor shall demonstrate that the hot compressed air lance is drying and raising the temperature as required. The pavement shall not be overheated. Direct flame dryers shall not be used. Routing cracks in bituminous pavements is not required unless required by the manufacturer’s installation instructions.

5-03.3(3)B Material Selection – Crack Sealing Bituminous Pavement

The material to be used on bituminous pavement for crack sealing shall be selected from the following table based on the width of each crack and the nature of the material that will be placed over the sealed cracks. Crack Sealant or Sealer Material Selection – Cracks In Bituminous Pavement Crack to be SealedMaterial to be Placed Over the Sealed Crack on this Contract HMA BST Nothing Cracks with widths from ¼ inch to 1 inchSand Slurry for Bituminous Pavement

9-04.2(1)BHot Poured Sealant for

Bituminous Pavement

9-04.2(1)A2Hot Poured Sealant for

Bituminous Pavement

9-04 2(1)A2

Cracks with widths greater than 1 inchPolymer Modified Asphalt Mastic

9-04.2(1)CPolymer Modified

Asphalt Mastic

9-04.2(1)CPolymer Modified

Asphalt Mastic

9-04 2(1)C

5-03.3(3)B1 Polymer Modified Asphalt Mastic

The polymer modified asphalt mastic shall be confined within the crack. All overflow of polymer modified asphalt mastic shall be cleaned from the pavement surface. If, in the opinion of the Engineer, the Contractor’s method results in an excessive amount of polymer modified asphalt mastic on the pavement surface, the operation shall be stopped and corrected to eliminate the excess. BST or HMA shall not be placed over polymer modified asphalt mastic until a minimum of 14 calendar days have elapsed following application of the polymer modified asphalt mastic.

5-03.3(3)B2 Sand Slurry for Bituminous Pavement

The sand slurry components shall be thoroughly mixed and the mixture shall be poured into the cracks until full. Additional CSS-1 cationic emulsified asphalt may be added to the sand slurry as needed for workability to ensure the mixture will completely fill the cracks. The Contractor shall strike off the sand slurry flush with the existing pavement surface and allow the mixture to cure. Cracks that were not completely filled shall be topped off with additional sand slurry. Placement of the HMA overlay shall not commence until the slurry has fully cured.

5-03.3(3)B3 Hot Poured Sealant for Bituminous Pavement

The sealant material shall be confined within the crack. All overflow of sealant shall be cleaned from the pavement surface. If, in the opinion of the Engineer, the Contractor’s method results in an excessive amount of sealant on the pavement surface, the operation shall be stopped and corrected to eliminate the excess. BST shall not be placed over hot poured sealant until a minimum of 14 calendar days have elapsed following application. Page 5-20 M 41-10

5-03 Crack and Joint Sealing5-03.3(4) Bridge Paving Joint Seals

The Contractor shall construct the joint seals as specified in the Plans and in accordance with the detail shown in the Standard Plans. If a bridge deck panel joint exceeds 1” in width and no joint details are shown in the Plans, the Contractor shall notify the Engineer. Prior to placing HMA on the bridge deck, alignment points shall be established for locating saw cuts at both ends of the bridge, at interior joints within the bridge deck, and where shown in the Plans, to ensure alignment of the saw cuts for the joint seals are within a tolerance of ± 1∕8 inch of the location shown in the Standard Plans. Saw cut alignment points shall be established in a manner that they remain functional for use in aligning the saw cut after placing the HMA overlay.

5-03.3(4)A HMA Joint Seal at Bridge End

When a bridge is paved with HMA, HMA joint seals at bridge ends shall conform to Details 1 and 2 of Standard Plan A-40.20. When a roadway approach to a bridge is paved with HMA, but the bridge deck is not paved with HMA, HMA joint seals at bridge ends shall conform to Details 3 and 4 of Standard Plan A-40.20. These joints shall be filled with joint sealant meeting the requirements of Section

9-04 2(1)A2, Hot Poured Sealant for Bituminous Pavement. The top of the joint sealant

shall be within flush and -¼ inch of the top of finished pavement.

5-03.3(4)B HMA Joint Seal at Bridge Deck Panel Joint

Unless otherwise shown, when a bridge deck is paved with HMA, HMA joints seals at bridge deck panel joints shall conform to Details 5 and 6 of Standard Plan A-40.20. Prior to placing a waterproofing membrane or placing HMA over a bridge deck panel joint, the joint between concrete deck panels shall be cleaned and sealed as specified in the Plans and in accordance with the detail shown in the Standard Plans and the following:

5-03.3(5) Clean and Seal Bridge Deck Panel Joint

When specified in the plans, bridge deck panel joints shall be cleaned and sealed in accord-ance with Detail 7 of Standard Plan A-40.20. If a bridge deck panel joint exceeds 1” in width and no joint details are shown in the Plans, the Contractor shall notify the Engineer. M 41-10 Page 5-21 Crack and Joint Sealing 5-03The Contractor shall construct the joint seal as specified in the Plans and in accordance with the detail shown in the Standard Plans and the following:

5-03.3(6) Sealing Cement Concrete Pavement

All joints in this section shall be sealed with Hot Poured Sealant for Cement Concrete Pavement, Section 9-04.2(1)A1.

5-03.3(6)A Sealing Existing CCP Random Crack

The Contractor shall route, clean and seal existing random cracks in existing cement concrete pavement at locations shown in the plans or specifications, or otherwise designated by the Engineer. Within those areas, use the following table to determine which cracks require cleaning or routing, and sealing: Routing and Sealing Requirements for Random Cracks in CCP Crack Width WcWork Requirements Wc < 1/8 inch None 1/8 inch <= Wc <= 5/16 inch Route, Clean, and Seal1, 2 5/16 inch < WcClean and Seal2 15/16 inch wide by 1 inch deep. 2All incompressible material shall be completely removed from the crack to a minimum depth of ¾ inch. Immediately prior to sealing, the cracks shall be clean. For all crack widths, the top surface of the sealant shall be from 1/8 inch to ¼ inch below the top surface of the CCP.

5-03.3(6)B Sealing Existing CCP Transverse and Longitudinal Joint

Where shown in the Plans or as marked by the Engineer, the Contractor shall clean and seal existing sawed transverse and longitudinal joints in cement concrete pavement, without regard for whether these are contraction or construction joints. Existing construction joints that are not sawed shall be sawed and sealed. Old sealant and incompressible material shall be completely removed from the joint to a depth of 1.0 inch using a 5/16 inch wide diamond-embedded saw blade. The removed sealant and debris shall become the property of the Contractor and removed from the jobsite. Removal of old sealant below the depth of the new 1 inch saw cut is not required. Joints constructed with joint tape do not require cleaning and sealing. The cured joint sealant shall be between ¼ and ⅝ inch below the top surface of the concrete.

5-03.3(6)C Sealing Contraction Joints in New CCP

Transverse and longitudinal contraction joints shall be constructed in accordance with Section 5-05.3(8) and Standard Plan A-40.10. Page 5-22 M 41-10

5-03 Crack and Joint SealingThe cured joint sealant shall be between ¼ and ⅝ inch below the top surface of the

concrete.

5-03.3(6)D Sawing and Sealing Construction Joints in New CCP

Transverse and longitudinal construction joints, including the longitudinal construction joint between new and existing CCP, shall be constructed in accordance with section

5-05.3(8) and Standard Plan A-40.10. The Contractor may use a hand pushed single blade

saw for sawing construction joints. The cured joint sealant shall be between 1/8 and ¼ inch below the top surface of the concrete.

5-03.3(7) Sealing CCP to HMA Longitudinal Joint

Longitudinal joints created when placing HMA adjacent to cement concrete pavement (from this Contract or a previous contract) shall be constructed as shown on Standard Plan A-40.10. Joint sealant shall meet the requirements of either Section 9-04.2(1)A1 or Section 9-04.2(1)A2. The joint sealant shall be applied under sufficient pressure to fill the groove from bottom to top and the cured joint sealant shall be between 1/8 and ¼ inch below the top surface of the pavement.

5-03.4 Measurement

“Crack Sealing Bit Pvmt ¼ inch to 1 inch- LF” will be measured by the linear foot along the line of the cracks. “Crack Sealing Bit Pvmt Wider than 1 inch - LF” will be measured by the linear foot along the line of the cracks. “Crack Sealing Bit Pvmt-CM” will be measured to the nearest hundredth of a mile along the centerline of the roadway, without regard to the different requirements for crack width. Shoulders, road approaches, gores and irregular shaped areas will be incidental and not measured separately for payment. “Crack Sealing Bit Pvmt-LF” will be measured by the linear foot along the line of the cracks that have been completed. “HMA Joint Seal at Bridge End”, “HMA Joint Seal at Bridge Deck Panel Joint”, and “Clean and Seal Bridge Deck Panel Joint” will be measured by the linear foot along the line and slope of the completed joint seal. “Sealing Existing CCP Random Crack” will be measured by the linear foot along the crack sealed. “Sealing Existing CCP Transv and Longit Joint” will be measured by the linear foot along the line of the completed joint. “Sealing CCP to HMA Longit Joint” will be measured by the linear foot along the line and slope of the completed joint seal.

5-03.5 Payment

Payment will be made for each of the following Bid items that are included in the Proposal: “Crack Sealing Bit Pvmt-FA”, by force account. “Crack Sealing Bit Pvmt-FA” will be paid for by force account as specified in Section

1-09.6 For the purpose of providing a common Proposal for all Bidders, the

Contracting Agency has entered an amount in the Proposal to become a part of the total Bid by the Contractor. “Crack Sealing Bit Pvmt ¼ inch to 1 inch - LF”, per linear foot. M 41-10 Page 5-23 Crack and Joint Sealing 5-03The unit Contract price per linear foot for “Crack Sealing Bit Pvmt ¼ inch to 1 inch - LF” shall be full payment for all costs incurred to perform the Work required in Section

5-03 related to cracks in bituminous pavement that are ¼ inch to 1 inch in width.

“Crack Sealing Bit Pvmt Wider than 1 inch - LF”, per linear foot. The unit Contract price per linear foot for “Sealing Bit Pvmt Wider than 1 inch - LF” shall be full payment for all costs incurred to perform the Work required in Section

5-03 related to cracks in bituminous pavement that are greater than 1 inch in width.

“Crack Sealing Bit Pvmt-CM”, per centerline mile. The unit contract price per centerline mile for “Crack Sealing Bit Pvmt-CM”, shall be full payment for all costs incurred to perform the Work described in Section 5-03 related to cracks in bituminous pavement, including all lanes, paved shoulders, road approaches, gores, irregular shaped areas, and without regard to crack widths. “Crack Sealing Bit Pvmt-LF”, per linear foot. The unit contract price per linear foot for “Crack Sealing Bit Pvmt-LF” shall be full payment for all costs incurred to perform the Work described in Section 5-03, related to cracks in bituminous pavement, and without regard for crack width. “HMA Joint Seal at Bridge End”, per linear foot. The unit Contract price per linear foot for “HMA Joint Seal at Bridge End” shall be full payment for all costs incurred to perform the Work related to and as specified in “HMA Joint Seal at Bridge Deck Panel Joint”, per linear foot. The unit Contract price per linear foot for “HMA Joint Seal at Bridge Deck Panel Joint” shall be full payment for all costs incurred to perform the Work related to and as specified in Section 5-03.3(4)B. “Clean and Seal Bridge Deck Panel Joint”, per linear foot. The unit Contract price per linear foot for “Clean and Seal Bridge Deck Panel Joint” shall be full payment for all costs incurred to perform the Work related to and as specified in Section 5-03.3(5). “Sealing Existing CCP Random Crack”, per linear foot. The unit Contract price per linear foot for “Sealing Existing CCP Random Crack” shall be full payment for all costs incurred to perform the Work related to and as specified in Section 5-03.3(6)A. “Sealing Existing CCP Transv and Longit Joint”, per linear foot. The unit Contract price per linear foot for “Sealing Existing CCP Transv and Longit Joint” shall be full payment for all costs incurred to perform the Work related to and as specified in Section 5-03.3(6)B. “Sealing CCP to HMA Longit Joints”, per linear foot. The unit Contract price per linear foot for “Sealing CCP to HMA Longitudinal Joints” shall be full payment for all costs incurred to construct the longitudinal joint between HMA and cement concrete pavement, related to and as specified in Section 5-03.3(7), when either the HMA side of the joint or the CCP side of the joint, or both, were constructed on a previous contract. When both the HMA and CCP are placed under this Contract, payment shall be considered incidental to and included in the bid price for the HMA. Payment for all costs incurred for the Work related to sawing, cleaning, and sealing contraction joints and construction joints at the following locations shall be considered incidental to and included in the cost of the pavement. Page 5-24 M 41-10

5-03 Crack and Joint Sealing1. In CCP installed on this Contract, as referenced in Section 5-03.3(6)C, Section

5-03.3(6) D, and Section 5-05.3(8).