Cracking Resistance Performance of Asphalt Treated Base

摘要

In order to evaluate the reflective cracking resistance performance of asphalt treated base, this paper developed the simulation test method for the fatigue resistance of asphalt mixture, and asphalt mixture specimens of three groups of gradation ,three groups of asphalt content ,and three groups of different layer thickness were subjected to conduct fatigue cracking test. Studies found that mineral aggregate gradation and asphalt content had great influences on fatigue cracking performance. Using the mathematical statistic method, the statistic relations between the cracking life and the characteristic parameters of mineral aggregate gradation, asphalt content and layer thickness was established. This prediction model can be used to optimize the mixture design.