Crack sealing and asphalt repair work run by city street departments, state DOTs and contractors. Each study names the agency, the road, the product, and the test data behind it.
City of Victoria Built a Crack Sealing Program Without Buying a Melter
D6690 + C920 Meets both standards, applied cold. Traffic back on the lane with no cure time.Victoria priced a hot-pour setup and did not like the capital cost or the liability of material heated past 350°F. They started the program cold instead, on 6690 ColdFuze™.
Read the study →NCDOT Patched a Bridge Joint on I-95 That Had Already Failed More Than Once
I-95 Bridge joint on an interstate, flagged by NCDOT as a motorcycle hazard.The section had a history of repairs that came back out. NCDOT poured Perma-Patch straight from the bag in July 2012 and finished inside one overnight window.
Read the study →NCDOT Filled a Quarter-Inch Depression Without Cutting the Lane Open
¼ inch Too shallow for a conventional patch, deep enough to hold water and keep spreading.A July 2010 pothole let water into the surface and left a quarter-inch depression in a travel lane. NCDOT D5 Streets Maintenance filled it in place and it was still holding two years later.
Read the study →What is in each study
The agency and the road are named. The product is named once and linked. Lab results come from an accredited outside lab, and the full report sits in the submittal package for anyone who has to spec it. Photos are from real jobs.