ABSTRACT

ABSTRACT: One of the most cost-effective pavement preservation treatments is the chip seal. Roads with newly constructed chip seals normally are opened to traffic three to four hours after construction, so it is important that the chip seals reach a sufficient performance level within three to four hours. In order to evaluate this early performance of chip seals, this study compares PMEs to an unmodified emulsion for their usage in chip seals in terms of curing and aggregate retention. The curing and adhesive behavior study of the two types of emulsion was performed using the evaporation test, Bitumen Bond Strength (BBS) test, and Vialit test. The third-scale Model Mobile Load Simulator (MMLS3) was employed for aggregate retention testing.