ABSTRACT
Volumetric properties have been widely used in the routine-based activities in the asphalt industry. The paper utilized the Simplified ViscoElastic Continuum Damage (S-VECD) model to evaluate the effects of the mixture volumetric property changes on their fatigue performance in a case study. A systematic experimental design was conducted, and performance tests were done on one asphalt mixture with nine different volumetric conditions. The index parameter, S app , was applied to evaluate the mixture fatigue resistance on the material level while structural level analyses were performed using FlexPAVE™ program. The test results indicate that the volumetric properties have great impacts on mixture fatigue resistance, and using the index parameter and structural performance simulations are both effective approaches to evaluate asphalt mixture fatigue performance.
