岩土力学Issue(7)：1855-1862,1870,9.
污水浸泡对水泥土强度和电阻率特性影响的试验研究
Effect of sewage on electrical resistivity and strength of cemented soil
摘要
Abstract
To expose the deterioration rule of cemented soil eroded by sewage, soaking the cemented soil blocks made of two types of cement (ordinary Portland cement, slag Portland cement) and silty clay in three different solutions (tap water, domestic sewage and industrial sewage), the laboratory experiments were conducted. First, the effect of sewage on liquid-plastic limit of soil was described. Second, the influence of curing age, cement type and sewage type on compressive strength and electrical resistivity of cemented soil were discussed. Then, the relationship between electrical resistivity of cemented soil and compressive strength was analyzed. The results show that:After contaminated by sewage, the liquid-plastic limit of soil increases;whereas the plasticity index decreases;the compressive strength and electrical resistivity increase with increasing curing age;the sewage reduces the compressive strength and the resistivity of the cemented soil; however, the compressive strength and electrical resistivity of slag Portland cemented soil are higher than that of the ordinary Portland cemented soil; therefore slag Portland cement can improve the ability of resistance to degradation. Under different curing ages, no matter what type of cement and sewage, the electrical resistivity and compressive strength of the cemented soil vary follow the same rule. The relationship between electrical resistivity and compressive strength is linear.关键词
污水/水泥土/电阻率/无侧限抗压强度Key words
sewage/cemented soil/electrical resistivity/unconfined compressive strength分类
建筑与水利引用本文复制引用
董晓强,苏楠楠,黄新恩,白晓红..污水浸泡对水泥土强度和电阻率特性影响的试验研究[J].岩土力学,2014,(7):1855-1862,1870,9.基金项目
国家自然科学基金资助项目(No.51078254，No.51078253)；中韩合作交流项目NSFC-NRF(No.51211140344)；教育部新世纪优秀人才支持计划(No. NCET-12-1039)；山西省高等学校优秀青年学术带头人支持计划。 （No.51078254，No.51078253）
