A Laboratory Investigation on Long-Term Performance of Asphalt Concrete Treated with Antistripping Additivesby W. Virgil Ping, FAMU/FSU Coll of Engineering, Tallahassee, United States,
Thomas W. Kennedy, FAMU/FSU Coll of Engineering, Tallahassee, United States,
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 | Concrete pavements | Moisture | Ultimate strength | Pavement condition | Damage (structural) | Damage (material)
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