Calibration of M-E PDG rutting model for Indian conditions

Within the context of the mechanistic-empirical pavement design guide, the rut depth transfer function used consists of local calibration and material-specific coefficients. The material-specific coefficients ensure that the material-specific creep and recovery data can be used within the context of simulation for quantification of rutting. In this work, material-specific coefficients of the mix with VG30 binder were developed using repeated creep and recovery test conducted at three different temperatures and for two different confinement conditions. The axle load and traffic data from ten national highways across India were chosen, and simulations were carried out for these highways. The results from M-E PDG simulations were analyzed, and the design life in terms of rutting was estimated. In addition, the adequacy of the pavement sections provided based on Indian pavement design code for a target rut depth was investigated.