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通过马歇尔试验、间接拉伸试验和车辙试验， 研究分析了ＳＭＡ组成对其物理力学性能的影响。结果表明： ＳＭＡ沥青混合料的主要马歇尔物理力学参数， 包括稳定度、空隙率随沥青含量的增加而减小， 不存在最佳沥青含量。在按马歇尔设计方法进行ＳＭＡ混合料组成设计时， 起控制作用的只有空隙率。
Through the Marshall test, indirect tensile test and rutting test, the influence of SMA composition on its physical and mechanical properties was analyzed. The results show that the main Marshall physical and mechanical parameters, including the stability and porosity, of SMA asphalt mixture decrease with the increase of asphalt content, and there is no optimal asphalt content. When designing SMA mixes according to Marshall’s design methodology, only the void fraction is the controlling factor.