Influence of Fly Ash on Clay Liner

被引：2

作者：

Sun, Xuejing ^{[1
]}

Zhao, Yongsheng ^{[1
]}

Sang, Zhiwei ^{[1
]}

机构：

[1] Jilin Univ, Minist Educ, Coll Environm & Resources, Key Lab Groundwater Resources & Environm, Changchun 130021, Peoples R China

来源：

ADVANCES IN ENVIRONMENTAL SCIENCE AND ENGINEERING, PTS 1-6 | 2012年 / 518-523卷

关键词：

Fly ash; Modified clay liner; Volume shrinkage; Hydraulic conductivity; HYDRAULIC CONDUCTIVITY;

D O I：

10.4028/www.scientific.net/AMR.518-523.2543

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Compacted clay is commonly used as an essential material for reducing the permeability in landfill sites. However, compacted clay has defect with shrinkage and desiccation cracking during cyclic drying and wetting, which may increase hydraulic conductivity of compacted clay. It's necessary to modify clay, and make it have anti-cracking performance. The main objective of the study is to determine the content of fly ash on clay. Laboratory tests were done to determine optimum moisture content, hydraulic conductivity, volume shrinkage on different content fly ash modified clay. It was determined that a certain proportion of fly ash can improve the permeability of clay, and reduce the cracking clay.

引用

页码：2543 / 2546

页数：4

共 8 条

[1] Influence of pore water chemistry on the swelling behavior of compacted clays [J].