Study on high temperature performance of coal based modified asphalt mixture

Abstract

SHA, as a solid waste from direct coal liquefaction, has a certain application prospect. Based on the original concept and process of coal based clean asphalt preparation, this paper studies the performance of SHA coal based modified asphalt mixture, and draws the following conclusions: (1) SHA modified asphalt has the characteristics of hard asphalt (2) Compared with traditional SBS modified asphalt mixture, SHA modified asphalt mixture has good high temperature performance (3) SHA modified asphalt mixture has small rutting rolling depth, which can improve the rutting resistance of asphalt pavement.