Investigation Effect of Rubber Particles in The Asphalt

This paper describes the properties of asphalt samples modified with ground scrap tire rubber and reclaim rubber. In this way، a pull out test was designed to investigate the interfacial shear stress between asphalt (neat and/or modified) and aggregate. The pull out test was carried out through modification of the tensile tester machine. According to the experimental design، the effects of rubber particle content، blending temperature، mixing time and types of aggregate (limestone and/or steel slag) were investigated on the pull-out force. Therefore، the optimized conditions of preparation of rubber-modified asphalt-concrete were obtained. After that to investigate the performance of asphalt rubber concrete، the dynamic shear rheometer (DSR) test was conducted. Therefore، the high temperature performance of asphalt was obtained. Studies and experiments indicate that use of ground rubber to modify binder is desirable from stand point of technical In addition، it is desirable from an environmental point of view.