水泥稳定碎石抗裂性能的试验与分析

Cracking resistance test of cement-stabilized macadam and the analysis

水泥稳定碎石路面基层存在早期易出现较多裂缝的缺陷而使其应用受限。在总结国内外研究的基础上,提出骨架密实型水泥稳定碎石基层概念,并与国内规范推荐级配的水泥稳定碎石进行路用性能的对比试验研究和试验路的验证试验。结果表明,骨架密实型水泥稳定碎石能有效减少基层收缩裂缝的产生,作为路面基层时具有更优良的路用性能。

Cement-stabilized macadam road base has a shortcoming of easy to crack in early time which limits its application. On base of summarizing domestic and oversea study, coneept of eompaet cement-stabilized mac, adam base was raised. And compared with the cement-stabilized macadam road base of which the gradatiou is recommended by the national standard, the results show that the compact cement-stabilized macadam can decrease the crack effectively and has more excellent road performance.