Abstract
There is a possibility that thermal cracks occurr in an asphalt mixture due to thermal stress at very low temperature. It is difficult to evaluate the thermal stress of asphalt mixture because its physical properties considerably change on temperature, material used and mix proportion. The establishment of evaluation approach considering a dependence on temperature of asphalt mixture become issue to consider it. In this study, a testing method and analytical method to evaluate the thermal stress at low temperature is proposed, and the applicability of its analysis using viscoelastic model is discussed. This analysis uses the input data obtained from experiment on physical properties varying temperature and loading condition. The strain histories of asphalt mixture can be re-created through this proposed analysis, and it is showed that this method to evaluate the possibility of cracking at low temperature in the field is applicable.
