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水泥稳定碎石基层耐用性试验采用6.5%掺量水泥(超剂量水泥),配制骨架密实型水泥稳定碎石基层,并采取掺减缩剂、基层预锯缝、橡胶沥青下封层等技术措施,达到提高基层耐用性的目的。并提出耐用性指数评价基层的方法,采用弦式应变计测取基层和路面的干缩应变、温度应变、荷载作用应变等数据,为提高水泥稳定碎石基层的耐用性能提供依据。
Cement stabilized macadam base durability test using 6.5% cement (overdose cement), preparation of skeleton solid cement stabilized gravel base, and take the admixture, the base of pre-sawing, rubber asphalt seal and other technical measures, Achieve the purpose of improving the durability of the grassroots. The method of evaluating the grassroots by the durability index is proposed. The data of the shrinkage strain, temperature strain and load strain of the grass roots and pavement are measured by the chordal strain gauge, which provides the basis for improving the durability of the cement stabilized macadam.