干湿循环过程中红黏土改良土路基填料试验研究

Shuai ZENG,Changxian ZENG,Youyan BIAN,Lijing HUA,Dong ZHANG

Railway Engineering（2020）

Cited 6|Views4

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Abstract

对广西红黏土改良路基填料进行干湿循环试验,比较水泥掺量、含水率、是否添加改良剂等因素对改良土耐久性的影响.红黏土水稳性差,干湿循环后出现一定程度的质量损失,而新型改良剂对提高红黏土干湿循环下的耐久性作用显著.试验结果表明:水泥掺量11％～15％、压实系数0.9、含水率高于最优含水率6％～7％时,无侧限抗压强度和质量损失率满足要求.

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