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论文类型：会议论文

发表时间：2011-09-22

收录刊物：EI、CPCI-S、Scopus

卷号：374-377

页面范围：1904-1907

关键字：Chip seal; Asphalt pavement; Specimen molding method; Laboratory simulation test

摘要：Chip seal is most frequently used as preventive maintenance (PM) treatments on asphalt pavement. However, it's difficult to make the performance test of chip seal in laboratory. In this paper, the specimen molding method of chip seal is established in laboratory. Firstly, considering the structure and technique condition of the original pavement, a cushion layer of asphalt concrete (AC) is used as under layer of the specimen. Secondly, the construction process of chip seal is simulated in laboratory, which includes spraying emulsified asphalt and/or glass fiber, spreading aggregate, initial rolling and conservation, post-stage rolling and conservation in interval for some time. Lastly, visual inspection and sand patch test are used to evaluate the quality of the specimen. Research results show that the method of specimen molding and test in laboratory could relatively accurately simulate, evaluate and forecast the performance of the chip seal.