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以半刚性基层沥青路面下封层——同步碎石封层和稀浆封层的技术性能为研究对象,采用直接剪切试验、直接拉拔试验和加压渗水试验分别对二者的层间抗剪强度、抗拉强度和透水性能作了比较分析,同时开展了抗剪强度与抗拉强度的相关性研究。研究结果表明:同步碎石封层层间抗剪切性能明显优于稀浆封层,而稀浆封层的防水性能好于同步碎石封层;层间抗剪强度与抗拉强度之间存在显著的正相关关系;最后根据研究成果推荐出同步碎石封层和稀浆封层的适用场合。
The semi-rigid base asphalt pavement under the seal - synchronous stone seal and slurry seal technical performance as the research object, using direct shear test, direct drawing test and pressure water seepage test, respectively, between the two layers Shear strength, tensile strength and water permeability were compared and analyzed. Meanwhile, the relationship between shear strength and tensile strength was studied. The results show that the anti-shear properties of the seal layer are better than that of the slurry seal, while the seal of the slurry seal is better than that of the seal layer. The interlaminar shear strength and tensile strength There is a significant positive correlation; Finally, according to the results of the study recommended synchronous seal and slurry sealing layer of the applicable occasions.