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中文摘要：
利用英国多功能气动沥青材料试验机Cooper NU—14测定了4种沥青混合料老化前、短期老化和长期老化后试件的动态间接拉伸劲度模量试验参数,分析了影响沥青混合料抗老化性能的相关因素。结果表明,短期老化是沥青混合料老化的主要阶段,空隙率、粗集料含量和沥青膜厚度对沥青混合料的老化性能有重要影响。
英文摘要：
Employing multi-functional asphalt materials test machine imported from England, the dynamic indirect tensile stiffness modulus test parameters of original asphalt mixture.short-term aged asphalt mixture and long-term aged asphalt mixture were measured. And the factors of effecting aging performance of asphalt mixture were analyzed. The result shows that the short-term age is the main stage, the void ratio,the content of coarse aggregate and the asphalt film thickness have important influence on aging performance of asphalt mixture.
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