SECTION_32_01_17_Pavement_Crack_Seal.docx
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SECTION 32 01 17 PAVEMENT CRACK SEAL
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SECTION 32 01 17
SECTION 32 01 17
PAVEMENT CRACK SEAL
| PART 1 | GENERAL |
| 1.1 | SECTION INCLUDES |
| A. | Filling and sealing cracks in asphalt concrete Pavements. |
| 1.2 | REFERENCES |
| A. | ASTM D 36: Standard Test Method for Softening Point of Bitumen (Ring-and Ball Apparatus) |
| B. | ASTM D 977: Standard Specification for Emulsified Asphalt. |
| C. | ASTM D 1190: Standard Specification for Concrete Joint Sealer, Hot-Poured Elastic Type. |
| D. | ASTM D 2397: Standard Specification for Cationic Emulsifed Asphalt. |
| E. | ASTM D 3381: Standard Specification for Viscosity-Graded Asphalt Cement for Use in Pavement Construction. |
| F. | ASTM D 3405: Standard Specification for Joint Sealants, Hot-Poured, For Concrete and Asphalt Pavements. |
| G. | ASTM D 5078: Standard Specification for Crack Filler for Asphalt Concrete and Portland Cement Concrete Pavements. |
| H. | ASTM D 5329: Standard Test Methods for Sealants and Fillers, Hot-Applied for Joints and Cracks in Asphaltic and Portland Cement Concrete Pavements. |
| 1.3 | DEFINITIONS |
| A. | Crack Filling: The placement of materials into cracks to substantially reduce infiltration of water and to reinforce the adjacent Pavement. The crack receives no special preparation other than cleaning. |
| B. | Crack Sealing: The placement of specialized materials in cracks or above to prevent the intrusion of incompressibles and water into the crack. The crack receives unique crack configuration prepartion. |
| C. | Pothole: Loss of surface material in a Pavement to the extent that a patch is necessary to restore Pavement ride quality. |
| 1.4 | SUBMITTALS |
| A. | Product Data sheets. |
| 1.5 | QUALITY ASSURANCE |
| A. | Do not use crack repair product that has been over-heated, suffered prolonged heating or which ravels or can be pulled out by hand after placement. |
| B. | Do not mix different manufacturer’s brands or different types of crack repair material. |
| C. | Do not depress crack repair product temperature at the wand tip below the manufacturer’s recommended application temperature when loading product into product tank. |
| D. | Rework Defective Work. |
| 1.6 | NOTICE |
| A. | Send written notice to COR at least 3 days before application of new Crack Filling or Crack Sealing material. |
| B. | Indicate application time and when pavement surface can be used. |
| C. | Should work not occur on the specified day, send a new notice. |
| 1.7 | ACCEPTANCE |
| A. | Visually inspect areas for adhesion Failure, damage to crack repair product, missed cracks, foreign objects in the product, or other problems that indicate the Work is not acceptable. |
| PART 2 | PRODUCTS |
| 2.1 | FILLER AND SEALER MATERIAL |
| A. | Crack treatment materials as follows. |
Table 1 – Thermoplastic Filler and Sealer Materials
| Material Type |
| ASTM |
| Application |
Hot-applied Thermoplastic Materials
| Asphalt Rubber |
| D 5078 |
| Sealing |
(possibly filling)
| Rubberized Asphalt |
| D 1190 |
D 3405 Sealing
| Low Modulus Rubberized Asphalt |
| (a) |
| Sealing |
| Asphalt Cement |
| D 3381 |
| Filling |
| Mineral-filled Asphalt Cement |
| D 3381 (b) |
| Filling |
| Fiberized Asphalt Cement |
| D 3381 (b) |
| Filling |
Chemically Cured Thermosetting Materials
| Silicone |
| (c) |
| Sealing |
Cold Applied Thermoplastic Materials
| Asphalt Emulsion |
| D 977 |
D 2397 Filling
Polymer-modified liquid asphalt D 977 D 2397 Filling (possibly sealing)
NOTES
(a) ASTM D 3405 or ASTM D 5078 except as follows.
· Softening point, 85 deg. C. minimum, ASTM D 36.
· Resilience, 30 percent recovery minimum at 25 deg. C plus or minus 1 deg. C, ASTM D 5329.
(b) Additives such as mineral fillers and fibers provide minimal elasticity to asphalt and do not significantly affect temperature susceptibility.
(c) Manufacturer’s recommended specification.
| B. | Selection of Sealer: Hot applied asphalt rubber or hot applied rubberized asphalt, unless specified otherwise. |
| C. | Selection of Filler: Asphalt emulsion, unless specified otherwise. |
| PART 3 | EXECUTION |
| 3.1 | CONSTRUCTION EQUIPMENT |
| A. | Sealant Heating Equipment: Indirect heating using double boiler or circulating hot oil heat transfer for heating the product. Do not use direct heat transfer units (tar pots). Unit must have means of constant agitation. |
| B. | Hot Compressed Air Lance: Provide clean, oil-free compressed air at a volume of 100 cubic feet per minute at a pressure of 120 pounds per square inch at the lance tip. |
| 3.2 | PREPARATION |
| A. | Allow at least one week for repaired cracks to cure and harden before placing thin overlays. |
| B. | Repair Potholes full depth. |
| 3.3 | CRACK FILLING AND SEALING |
| A. | Blow cracks clean. Remove foreign matter, loosened particles, and weeds. |
| B. | Use a hot air lance when surfaces are wet or when air temperature is less than 40 deg. F. Do not burn the surrounding Pavement. Fill cracks immediately after heating with the air lance or reheat. |
| C. | Fill each crack to within 1/4 inch of the existing surface. |
| D. | If a thin Pavement (chip seal, slurry seal, micro-surface) is to be applied, remove crack overfill by squeegee. |
| 3.4 | PROTECTION |
| A. | Place sand on surface of crack repair product if traffic or construction activities are likely to cause pull out. Replace pulled out product at no additional cost to the Government. |
| B. | Repair vehicles or other property damaged by crack repair operation. |
END OF SECTION
PAVEMENT CRACK SEAL Page 1
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