Study on High Temperature Stability of Hot Mix Asphalt Mixture with Low Volume RAP

Abstract

In this paper, the mix design of hot mix asphalt mixed with low content of RAP by Marshall design method，asphalt mixture is divided into AC-10 and AC-13 two types. From the point of view of the feasibility of incorporating RAP in a hot mix asphalt mixture, the high temperature stability of hot mix asphalt mixture with 15%, 20% and 25% RAP content was studied. It is well known that the asphalt mixture is an extremely complex road material; simply look at the experimental or theoretical analysis, can not draw an accurate conclusion. So, in this paper, through the combination of rutting test results and finite element method, the effects of different content of RAP on the high temperature stability of hot mix asphalt mixture were studied.