Laboratory Evaluation of Typical ADOT Asphalt Concrete

摘要

A typical ADOT asphalt concrete mixture was evaluated based on the Asphalt-Aggregate Mixture Analysis System (AAMAS) procedure (NCHRP Project 9-6(1)). Two sets of ADOT asphalt concrete specimens were prepared using the California kneading compactor and the Marshall hammer. All tests recommended by the AAMAS project were performed. The test results were analyzed using the AAMAS guidelines. It was found that the diametral resilient moduli of the ADOT mixture are within the acceptable range. A typical AASHTO structural layer coefficient is recommended. The rutting potential is low in some cases and moderate in other cases. Recommendations for the evaluation of fatigue cracking and thermal cracking are provided. The potential for moisture damage is high, while the potential for disintegration is marginal.