2021 Crack Sealing and Concrete Joint Sealing Program

For locations details refer the Appendix A1 Crack Sealing Locations documents. Bituminous Street Crack Sealing Routing, Cleaning, and Sealing of Cracks and Joints All cracks and joints, with the exception of edge joints for Priority 2 – 4 streets, are to be sealed according to the following specifications: The routing, cleaning, and sealing of cracks must be conducted on the same day. The routing and cleaning of cracks prior to the day of sealing shall not be permitted. The crack sealing shall not be applied unless the ambient air temperature is 45 °F and rising. All cracks less than or equal to 3/4” wide shall be routed to a width and depth of 3/4". Cracks measuring greater than 3/4” shall be cleaned and sealed without routing. Immediately before placing of the sealant in the routed cracks, the cracks shall be blown clean and dried with an air minimum of 150 psi or other devices approved by the City Engineer. If blowing fails to provide a finished crack with the desired results then wire brushing or sandblasting may be required followed by blowing to provide bonding faces which are free of moisture, dust, and other contaminants. All cracks must be dry, heated with a torch or other approved device, and free of loose particles before sealant is applied. The sealant mixture shall be heated in an applicator designed for this purpose with a temperature controlling device. The sealant material shall be constantly agitated in the applicator dispensing tank in order to maintain a homogeneous mixture. Sealant should be applied as hot as possible consistent with the manufacturer’s recommended pour temperature and safe heating temperature (usually 390 °F to 410 °F). Cracks/joints should be slightly overfilled with sealant and then squeegeed to conform to the level of the existing pavement and leave a strip extending at least 1" to either side of the crack with a maximum film thickness of the overband limited to 0.125” thick.

Division 01 -	General Requirements, Vehicular Access and Parking, Traffic Control, Temporary Barriers and Enclosures.
Division 32 -	Exterior Improvements, Flexible Paving, Asphalt Paving, Rigid Paving, Concrete Paving, Paving Specialties, Pavement Markings.
Division 33 -	Utilities, Storm Drainage Utilities, Storm Drainage Structures.