With regard to geosynthetic clay lines as a new type material of seepage barrier, the anthors present here some information on the composition of material, mechanism of imperviousness, engineering characteristic, strong and weak points, and principal product.

The geosynthetic clay liners (GCL) are being used increasingly in the antiseepage projects in recent years.

In recent years, geosynthetic clay liners (GCLs) are widely used in different kinds of anti-seepage projects, and the anti-seepage availabilities of GCLs are regarded as increasingly important by engineers.

Geosynthetics are widely used in municipal solid waste landfill,mainly including:geotextile(GT),geomembrane(GM),geosynthetics clay liner(GCL), geocomposite(GC) and etc.

The Geosynthetic Clay Liner(GCL) is a new kind of compound anti-seepage material which is made of two geotechnical synthetic layers with bentonite sandwiched,by means of puncturing,adhering or stitching.

Adsorption of phenol on cationic polymer/bentonite and the mechanism research;