Abstract
This study aims to examine a fatigue life prediction method based on a mechanistic-empirical approach for HMA. Field surveys and lab tests were conducted. It was found that fatigue cracking depends greatly on the mixing proportions of components of the bottom layer. By lab test, it was confirmed that HMA with different mix proportions differ to a statistically significant degree in the number of cycle to failure, and fatigue failue criterion for HMA based on damage theory was obtained. With this criterion and data obserbed at field survey, calculations were conducted to predict the fatigue life. Comparing the calculated fatigue life and the obserbed fatigue life, it was considered that they agree well.
