Waste rubber is used in experimental research on the recycling of waste asphalt mixture

waste rubber;  experimental studies;  waste asphalt mixture;  Regenerative effect

In order to realize the regenerative prepared from waste rubber as raw material for the recycling of waste asphalt mixture, the recycling test of aged asphalt and waste asphalt mixture recovered from pavement extraction was carried out, and the feasibility of using waste rubber for asphalt mixture regeneration was discussed through the recovery of the performance of aged asphalt and mixture, and the mechanism of action was analyzed. The results show that the recycler prepared by microwave treatment of waste rubber has a modifying effect on the aging asphalt, which can effectively restore its rheological properties, and the penetration degree, softening point, ductility and low-temperature stiffness of the recycled asphalt with the addition of recycler amount of about 10% are close to the matrix asphalt index. The high and low temperature performance, water stability and anti-aging performance of recycled asphalt mixture can meet the technical requirements of asphalt pavement.