Microdamage Healing in Asphalt and Asphalt Concrete, Volume 2: Laboratory andField Testing to Assess and Evaluate Microdamage and Microdamage Healing

摘要

Volume 2 documents laboratory and field testing that provides the evidence thatmicrodamage healing is real and measurable and that it has a significant impact on pavement performance. Part of the laboratory experiments to evaluate the impact of rest periods were periods were performed at North Carolina State University (NCSU). The experiment included two very different asphalt binders: AAD and AAM. The experiment clearly demonstrated that the rest periods introduced after fatigue damage allowed significant recovery in the flexural and dynamic modulus. The recovery was attributed to the healing of microcracks within the sample.