Sealing Cracks in Bituminous Pavements: Final Report

During the fall of 1969 transverse cracks were sealed in a 13-mile section of bituminous pavement. Five hot-poured rubber asphalt sealers, three tack coat materials for priming the crack sidewall, a bond breaker and 40 different application procedures were used. Test sections were established to evaluate the materials and procedures. Field surveys were conducted to determine the amount of footage failed. Reference pins were also installed to measure crack movement. The field results were used to evaluate the materials and procedures incorporated in the study program.