摘要
以科特迪瓦某公路工程为依托,开展基于法国规范的CBR、无侧限抗压强度及浸水循环试验。结果表明:精选红土粒料在经过水泥或者水泥+砂改良后,能够用作路面结构层中基层、底基层材料;同等条件下,掺入15%砂能够显著提高红土粒料的路用性能;试件在不同干湿循环次数下的强度损失表明改良红土粒料具有较好的水稳性能。
Relying on a highway project in Côte d'Ivoire,the CBR,infinite compressive strength and water immersion cycle tests based on the French standard were carried out.The results show that the selected laterite aggregates can be used as the middle base and bottom base material of the pavement structure layer after being improved by cement or cement+sand;under the same conditions,adding 15%sand can significantly improve the road performance of laterite aggregates;the strength loss of the specimens under different dry-wet cycles also shows that the improved laterite aggregates have better water stability.
作者
田树斌
田浩亮
单越
袁子浩
张超
TIAN Shubin;TIAN Haoliang;SHAN Yue;YUAN Zihao;ZHANG Chao(China Civil Engineering Construction Corporation,Beijing 100038,China;CCCC First Highway Consultants Co.,Ltd.,Xi'an 710075,China)
出处
《路基工程》
2023年第2期68-73,共6页
Subgrade Engineering
关键词
水泥稳定红土粒料
干湿循环
水泥掺量
水泥+砂掺量
CBR
无侧限抗压强度
cement stabilized laterite aggregates
dry wet cycle
cement content
cement+sand content
CBR
unconfined compressive strength
作者简介
田树斌(1983-),男,山东济宁人。高级工程师,主要从事公路生产管理工作。E-mail:16938795@qq.com。
