Abstract: In order to evaluate the anti-deformation performance of RAP warm mix recycled modified asphalt, the basic properties test and viscosity test of SBS modified asphalt and warm mix recycled modified asphalt mixtures which containing different percent reclaimed asphalt pavement are carried out, and the modification mechanism is analyzed from the activation energy. The results show that the activation energy of warm mixed modified asphalt is higher and the high temperature performance of warm mixed modified asphalt mixture is better than that of the hot mixed asphalt mixture. The recommended amount of RAP is 40%, the recommended amount of regenerant A is 5% of the asphalt and the recommended amount of regenerant B is 4% of the old asphalt.

Key words: road engineering, warm mixed regeneration asphalt mixture, activation energy, deformation performance