Author(s)

Xiao-Bo Xiong, Guo-Qing Gui, Shu-Zhi Ma

School of Engineering, China University of Geosciences, Wuhan, China.
School of Engineering, Jinggangshan University, Ji’an, China.

In recent years, geosynthetic Clay liners (GCLs) are widely used in different kinds of anti-seep-age projects and the anti-seepage availabilities of GCLs are regarded as increasingly important by engineers. Anti-seepage effectiveness of GCLs involves at least two aspects, such as Hydraulic conductivity of GCLs under engi-neering practice conditions, and Absorption ability of bentonite in GCLs in the course of liq-uid permeation. In this paper, Hydraulic con-ductivity tests are performed to obtain seepage coefficient of GCLs, taking liquids such as dis-tilled, deioned water and landfill leachate, and solutions with single-species cation as the hy-dration and permeation liquid. The results Show that cation valence, cation concentration and hydration ionic radius in hydration and permea-tion liquids have influences on hydraulic con-ductivity of GCLs.

Landfills; GCLs; Lines System; Lmpervious Barrier; Experimental Analysis

Xiong, X. , Gui, G. and Ma, S. (2009) Research on anti-seepage properties of geosynthetic clay lines in landfills. Journal of Biomedical Science and Engineering, 2, 254-260. doi: 10.4236/jbise.2009.24039.