Tufted geosynthetic clay liner and method of manufacture thereof

Details Tufted geosynthetic clay liner and method of manufacture thereof Tufted geosynthetic clay liner and method of manufacture thereof

1993-01-19

1995-07-25

Lesmes, George F.

Stock material or miscellaneous articles

Pile or nap type surface or component

With particles

428 92, 428 94, 428 95, 112410, 405129, B32B 302, D05C 1702, B09B 100, G21F 900

Patent

active

054360501

ABSTRACT:
A geosynthetic clay liner is disclosed for providing barriers in landfills that substantially preclude the migration of liquids. The geosynthetic clay liner includes a layer of bentonite disposed between a primary carrier sheet and a cover sheet. The primary carrier sheet and the cover sheet are linked via plurality of tufting threads. A bight or loop portion of the tufting thread extends through to the undersurface of the lower or primary carrier sheet and is partially melted to prevent the bight portion from slipping back through the primary carrier sheet. The partially melted bight portions create an under surface with a high coefficient of friction thereby enabling the geosynthetic clay liner to be installed on steep slopes or banks of landfills or ponds.

REFERENCES:
patent: 423781 (1890-03-01), Landenberger
patent: 3847719 (1974-11-01), Crowley
patent: 4565468 (1986-01-01), Crawford
patent: 5112665 (1992-05-01), Alexander

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