bentonite geosynthetic clay line

bentonite geosynthetic clay line
Geosynthetic Clay Liner
Tianhai bentonite waterproof blanket (GCL) is earthwork composite material that is specially used for anti-seepage of man-made lake waterscape, landfill yard, underground garage, building roof garden, water tank, oil depot and chemical pile yard
What is GCL?
GCL is blanket shape fabric that is produced by filling sodium base bentonite with high expansion between special composite earthwork cloth and non-woven cloth and locking bentonite on lower composite fabric through upper non-woven cloth fabric by special needle embroidering method. Bentonite anti-seepage liner produced by needle embroidering method can form many small fiber spaces, which prevent bentonite particles from moving in one direction, rubber head water layer with uniform high density is formed in the liner when meeting water so as to prevent water seepage effectively.
Product application
It is mainly used in various environmental protection projects such as waste landfill yard, underground reservoir and underground infrastructure, solves sealing, isolation and anti-seepage problems, and has good effect and strong damage resistance
MATERIAL PROPERTY
TEST METHOD
REOUIRED VALUES
Bentonite Swell Index
ASTM D 5890
24mL/2g min
Bentonite Fiuid Loss
ASTM D 5891
18mL max
Bentonite Mass/Area2
ASTM D 5993
3.6kg/m2 min
GCL Grab Strength
ASTM D 4632
400N marv
GCL Peel Strength
ASTM D 4632
65N min
GCL Index Flux
ASTM D 5887
1x10-8m3/m2/sec max
GCL Permeability
ASTM D 5887
5x10-9cm/sec max
GCL Hydrated Internal Shear Strength
ASTM D 5321
24kPa typical typical