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为研究影响干法橡胶沥青混合料抗水损害性能的因素,通过沥青混合料冻融劈裂试验研究了不同掺量及不同养生条件下干法橡胶沥青混合料的抗水损害能力。通过对冻融前后劈裂强度及ITS的分析发现,养生时间及橡胶颗粒掺量对混合料的抗水损害能力均有所影响;通过单因素方差分析发现,掺量对抗水损害能力影响更为显著。因此,在实际应用过程中,应着重控制橡胶颗粒的掺量,以保证沥青路面有良好的使用性能。
In order to study the factors that affect the water damage resistance of dry rubber asphalt mixture, the water resistance of dry rubber asphalt mixture under different dosage and different health conditions was studied through the freeze-thaw splitting test of asphalt mixture. Through the analysis of splitting strength and ITS before and after freeze-thaw, it is found that the time of health preservation and the content of rubber particles have an impact on the ability of the mixture to resist water damage. By single factor analysis of variance, Significant. Therefore, in the practical application process, we should focus on controlling the content of rubber particles in order to ensure good performance of asphalt pavement.