ABSTRACT

In the current practice of evaluating the rutting susceptibility of asphalt mixture, wheel tracking test is widely recognized as a proof test in the mix design and quality control/quality assurance. However, this kind of test method often fails to differentiate the good and bad mixtures in rutting resistance. As an alternative, the shear performance tests in terms of triaxial test and repeated simple shear test at constant height are used by some pavement researchers in the past. But due to the complexity and time-consuming, these tests have not been routinely used. Motivated by pursuing a compact but efficient method to evaluate the rutting of asphalt mixture instead of the wheel tracking test, this paper tried adopting a newly developed test method to evaluate the shear strength of asphalt mixture. Based on the laboratory test results as well as in reference to the previous research, the shear strength criteria to rutting were put forward.