为了掌握影响橡胶沥青SMA混合料的主要因素,以提高混合料的路用性能,利用分组对比分析法,分析了橡胶沥青SMA混合料在不同橡胶沥青类型、油石比和胶粉掺量下的低温性能。研究表明:在设计级配确定的情况下,不同的橡胶沥青类型、油石比、胶粉掺量对混合料的低温稳定性都有较为显著的影响;四川胶粉+ESSO-70号类型橡胶沥青低温性能最好;油石比越大,低温性能越好;胶粉掺量为21%时,低温性能最好。 In order to grasp the main factors that affect the rubber asphalt SMA mixture, in order to improve the road performance of the mixture, the grouped comparative analysis method was used to analyze the rubber asphalt SMA mixture under different rubber asphalt types, performance. The results show that different types of rubber asphalt, stone ratio and rubber powder have more significant effect on the low temperature stability of the mixture under the condition of the same design gradation; Sichuan rubber powder + ESSO-70 rubber asphalt Low temperature performance is best; the larger the ratio of oil to stone, the better the low temperature performance; The best low temperature performance is when the content of powder is 21%.