ABSTRACT
Three rheological models including a newly developed formulation based on the current Christensen Anderson and Marateanu (CAM) model, named sigmoidal CAM model (SCM), are used to predict the evolution of reflective cracking in a typical composite pavement structure currently used in South Korea. Three different asphalt mixtures were selected and dynamic modulus tests were performed. The mechanistic-empirical pavement design guide (MEPDG) was then used for evaluating the pavement distress and to estimate the effect of the three different models on such phenomena. It is found that while the CAM model may not be entirely reliable due to its inability in fitting the data in the high-temperature domain, the SCM might result in relatively more conservative pavement design.
