Specifications

1.Sodium Bentonite Compound Waterproof Cushion
2.Ingredient:non-woven geotextile,bentonite,woven geotextile.

 

     The introduction and performance of bentonite compound waterproof cushion(GCL):

        1.GCL is  a new type of geosynthetic materials.

        2.GCL widely used in municipal, roads, railways, water conservancy, environmental protection, and industrial and civil building construction of underground waterproofing seepage control.

        3.Application:

          1)Used in Lord of the landfill geomembrane lining layer

          2)Used in The Times of landfill geomembrane lining layer

          3)Used in a landfill geomembrane under the clay and layers

          4)Used for covering layer of landfill geomembrane next

          5)With a wall of water of ramus osteotomy geomembrane adjacent

          6) GCL on geomembrane , used to prevent aggregates will geomembrane punctured

          7)Used for underground storage Wells second lining layer

 

       The spec and property indexes of GCL:

 

 

Test Items	Test Method	Technique Data
Expansion coefficient	ASTM  D  5890	24 mL/2g  min
Mass per unit bentonite	ASTM  D  5993	3.6kg/m2  min
Tensile strength	ASTM  D  4632	400 N  marv
Peel strength	ASTM  D  4632	65 N  min
GCL index flux	ASTM  D  5887	1×10-8 m3/m2/sec  max
Permeability	ASTM  D  5887	5×10-9     cm/sec  max
GCL hydrated internal shear strength	ASTM  D  5321	24kPa typical
Bentonite swell index	ASTM  D  5891	18mL  max