Study On High Temperature Stability Of Rubber Particles Asphalt Mixture

With the application of rubber particles in asphalt mixture in road, rutting problems also became one of the main forms of damaging rubber particles asphalt pavements. Incorporating rubber particles could improve the icebreaking capability of the asphalt, but the high flexibility and low-density elasticity of rubber particles also increased the deformation of asphalt pavement and affected the life of the asphalt rubber particles pavement seriously. Therefore, it is necessary to study the temperature anti-rutting performance of rubber particles in asphalt mixture.This article relied on the project of Inner Mongolia Communications Department "Study on the applied technology of waste tire rubber granules in snow areas", based on AC-20C grading, incorporated0,1%,2%,3%and4%rubber particles which were4mesh in asphalt respectively. This paper proposed an improved method for the shortage of dynamic stability assessment on the basis of domestic and international studies. Secondly, inspected the raw materials testing, the mix design and the road performance testing for five kinds of asphalt rubber particles. In the end, studied the influence of marshall eigenvalues, rubber particles contents, degree of compaction, temperature, asphalt content on the high temperature stabilityThe results showed that the best asphalt rubber particles content was2%, the best asphalt rubber particles content which was defined by rutting test less than the marshall test, the value was0.1%-0.3%, when the temperature was higher, the high temperature stability was worse. By analyzing the compaction of different rolling round trips, determined the reasonable rolling round trips of different dosage asphalt rubber particles.