论文部分内容阅读
根据大量试验结果,分析了试件养护龄期、聚丙烯纤维体积掺量以及水泥掺量的变化对聚丙烯纤维水泥稳定碎石平均温缩系数的影响,得出了相应的影响规律。结果表明,聚丙烯纤维的掺加对水泥稳定碎石平均温缩系数有显著的降低;随着试验龄期的增长,平均温缩系数不断增长;在聚丙烯纤维掺量的范围内(体积掺量小于0.1%),随着纤维体积掺量的增加,水泥稳定碎石平均温缩系数有不断减小的趋势;随着水泥掺量的增加,聚丙烯纤维水泥稳定碎石平均温缩系数逐渐增加。
According to a large number of test results, the influence of the curing age of the specimen, the volume content of polypropylene fiber and the cement content on the average shrinkage coefficient of polypropylene stabilized cement stabilized macadam was analyzed, and the corresponding influence law was obtained. The results showed that the polypropylene fiber dipped significantly lower the average shrinkage coefficient of cement-stabilized macadam. With the increase of test age, the average temperature coefficient of shrinkage increased continuously. In the range of polypropylene fiber content Less than 0.1%). With the increase of fiber volume content, the average shrinkage coefficient of cement stabilized gravel tends to decrease. With the increase of cement content, the average shrinkage coefficient of cement stabilized macadam increase.