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本文为探讨不同目数对橡胶沥青混合料路用性能的影响,并对目数分别为20、30、40和60目的橡胶沥青混合料的路用性能进行对比分析。本文采用车辙试验、低温弯曲试验、冻融劈裂试验、浸水马歇尔试验和四点弯曲疲劳寿命试验,分析目数对橡胶沥青混合料路用性能的影响。研究表明:随着目数的增加,橡胶沥青混合料的路用性能都有一定的提高,综合分析路用性能和经济因素时,当胶粉目数为40目时,橡胶沥青混合料具有较好的路用性能。
In order to investigate the influence of different mesh number on pavement performance of rubber asphalt mixture, the pavement performance of rubber asphalt mixture with 20 mesh, 20 mesh, 40 mesh and 60 mesh mesh was compared and analyzed. In this paper, the rutting test, the low temperature bending test, the freeze-thaw splitting test, the immersion Marshall test and the four-point bending fatigue life test were used to analyze the influence of the mesh number on the asphalt pavement performance. The results show that with the increase of mesh number, the road performance of rubber asphalt mixture is improved to a certain extent. When the road performance and economic factors are comprehensively analyzed, the rubber asphalt mixture is better when the mesh number of the rubber powder is 40 mesh Road performance.