ABSTRACT

In order to study the performance of warm mix recycled asphalt mixture, and mold the specimens in accordance with the best dosage of each file of recycled asphalt pavement, the water stability, low temperature performance and high temperature stability under different dosages of recycled asphalt pavement were studied and analyzed through the freeze-thaw splitting strength, strain energy density and rutting test. The results showed that: with the increase of recycled asphalt pavement the water stability of warm mix recycled asphalt mixture first increased and then decreased. When the content of the recycled asphalt pavement is 40%, the freeze-thaw splitting strength ratio reached a maximum and the low temperature performance of Warm mix recycled asphalt mixture and common warm mix asphalt mixture were generally at the same level. With the increase of recycled asphalt pavement, the high temperature stability of warm mixture asphalt was improved.