Electro-osmosis tests on kaolin clay

被引：0

作者：

Hu, Liming ^{[1
]}

Hong, Heqing ^{[1
]}

Wu, Weiling ^{[1
]}

机构：

[1] State Key Laboratory of Hydroscience and Engineering, Department of Hydraulic Engineering, Tsinghua University, Beijing 100084, China

来源：

Qinghua Daxue Xuebao/Journal of Tsinghua University | 2010年 / 50卷 / 09期

关键词：

Electroosmosis - Water content - Electric resistance - Effluents - Consolidation - Dewatering - Moisture determination;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Electro-osmosis is a potential effective method for dewatering and consolidation of soft soils with low permeability. An electro-osmosis system was developed in laboratory tests for dewatering of kaolin clay. The electrical current, volume of effluent, moisture content, pH, and electrical resistance were monitored for six layers of samples with different dry densities. The soil samples with lower dry densities have lower total resistances and the higher electrical currents, volumes of effluent and more change in moisture contents when the same voltage was applied. An acid transition zone developed in the samples with increased total flow resistance during the electro-osmosis and an apparent increase was found around electrodes. The results show that the electro-osmosis dewatering is effective for kaolin clay but becomes less effective with the increase electrical resistance.

引用

页码：1353 / 1356