胶粉改性沥青混合料低温特性试验研究

摘要

为研究胶粉改性沥青混合料低温抗裂性能，采用沥青混合料小梁弯曲蠕变试验对胶粉改性沥青混合料的低温性能进行检验，并以 SBS 改性沥青混合料作为参照，结果表明，胶粉改性沥青混合料的感温性较弱，材料力学性能受温度影响较小，与 SBS 改性沥青混合料相比低温不易开裂。%The paper researches the crack resistance of crumb rubber modified asphalt mixture under low temperature,detects the low tempera-ture performance of crumb modified asphalt mixture by adopting the asphalt mixture small beam bending creep test,and compared with SBS mod-ified asphalt mixture. The results show that:the temperature sensitivity of crumb rubber modified asphalt mixture is less sensitive by taking SBS modified asphalt mixture as the reference,so its mechanical properties is less sensitive to temperature,and the crumb rubber modified asphalt mixture is not easy to crack.