由于橡胶颗粒的加入,对混合料马歇尔稳定度和流值产生了显著影响,和设计要求范围有偏差。因此,橡胶颗粒沥青混合料最佳沥青用量再单一的运用马歇尔方法严格按照规范的范围来确定,不能很好的确保混合料的高温稳定性。本文采用四种混合料级配,进行马歇尔试验和车辙试验分别确定最佳沥青用量OACa和OACb,取二者均值作为最终的最佳沥青用量OAC。路用性能检验结果表明,对橡胶颗粒沥青混合料而言,此方法优于传统的马歇尔法。 Due to the addition of rubber particles, the Marshall stability and flow value of the mixture have a significant impact, and deviate from the design requirements. Therefore, the best asphalt rubber asphalt mixture dosage and then use a single Marshall method strictly in accordance with the specification to determine the range, not good to ensure that the mixture of high temperature stability. In this paper, four kinds of mixture gradation, Marshall test and rutting test were used to determine the best asphalt dosage OACa and OACb respectively, whichever is the best asphalt dosage OAC. Road performance test results show that this method is superior to the traditional Marshall method for rubber asphalt mixture.