A Laboratory Investigation on Long-Term Performance of Asphalt Concrete Treated with Antistripping Additives

by W. Virgil Ping, FAMU/FSU Coll of Engineering, Tallahassee, United States,
Thomas W. Kennedy, FAMU/FSU Coll of Engineering, Tallahassee, United States,



Document Type: Proceeding Paper

Part of: Materials: Performance and Prevention of Deficiencies and Failures

Abstract:

Asphalt concrete pavement is susceptible to moisture damage and the damage caused by repeated freeze-thaw cycles is a major problem. This paper summarizes a laboratory investigation for accelerated testing of asphalt concrete to evaluate the long-term performance due to the effect of moisture damage. Laboratory prepared asphalt concrete specimens with and without antistripping treatments were subjected to repeated freeze-thaw cycles of moisture damage prior to testing. The resulting wet-dry indirect tensile strength ratio was the basis for evaluation.

Subject Headings: Asphalt concrete | Asphalt pavements | Tensile strength | Moisture | Damage (material) | Concrete pavements | Concrete admixtures

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