Research on Evaluating Index of Indoor Rutting Test of Asphalt Mixture

Abstract

To test the mixture of different thickness and different asphalt to find the problem of rutting test and evaluation index, so as to provide some reference for the improvement of index. The influence of different thickness and different asphalt mixture on dynamic stability, rut depth and percentage of Rut Depth index of asphalt mixture was studied by rutting test in this paper. The results show that there is a linear relationship between the dynamic stability index and the rut depth index of y = 4020.00x-404.48, the correlation coefficient reaches 0.9647. For AC-16 asphalt mixture 5cm and 6cm specimens, the dynamic stability and rut depth index are relatively stable with the change of thickness. The rut depth and percentage of Rut Depth index value decrease with the increase of thickness.