Asphalt Maintenance: Clean and Seal Crack Treatment
Posted by Jesse Willoughby on Mon, May 11, 2009 @ 05:34 AM
Clean and seal, used on all types of cracks, involves blowing out crack debris using a hot-air lance or compressed air and then filling with a sealant. This is an important part of asphalt maintenance.
• Perform when temperatures are moderately cool, as in spring and fall.
• Reroute traffic until the sealant material cures. If the roadway must beopened immediately after sealing, protect the sealant against pick-up by tires by lightly covering the sealant material with fine sand or toilet paper.
• Note that moisture will prevent bonding of the crack sealer to the crack walls.