An Approach to Estimate the Rutting Performance from the Dynamic Modulus of Asphalt Concrete

In this study, a modeling approach is established to predict the rutting performance of asphalt pavement from the laboratory tested dynamic modulus (|E*|). A total of ten Asphalt Concrete (AC) mixtures were collected from different manufacturing plants in New Mexico. The loose AC mixtures were compacted and furnished to test specimens for testing |E*| and rutting performance with Hamburg Wheel Tracking Device (HWTD). It was observed that a relationship between creep compliance (D(t)) and HWTD rutting (R-d) of AC can be established. A numerical interconversion technique is used to convert |E*| function to D(t) function. Statistical evaluation showed that a fairly good estimation of rutting performance can be found by using this new predictive model.