Abstract：DSR and BBR tests were carried out to analysis the high and low temperature performance of foamed rubber asphalt under different foaming water contents. Rutting test and low temperature bending test were used to evaluate the high and low temperature performance of foamed rubber asphalt mixture. The results show that the high-temperature performance of foamed rubber asphalt binder is significant lower than that of the rubber asphalt, and the low-temperature performance is improved significantly. With the increasing of foaming water content, the high temperature performance of asphalt binder gradually drops off and the low temperature crack resistance firstly decreases and then increases. Compared with unfoamed rubber asphalt, the high-temperature performance of foamed rubber asphalt mixture is decreased and low-temperature performance is improved. With the increasing of foaming water content, the dynamic stability of asphalt binder gradually decreases and the failure strain value gradually increases. It is recommended that 3% of foaming water content is appropriate.

Keyword：Foaming water content;rubber asphalt;high temperature performance;low temperature performance;