Geosynthetic clay liner and method of manufacture
AssigneeClaymax Corporation
InventorsMark Clarey, Donald Mathews
Life of this patent
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Abstract
An improved method of manufacturing geosynthetic clay liners is provided. The method of manufacture enables the construction of a structurally sound liner without the use of glue or adhesive and further without the use of needle punching or quilting. The method of manufacture also eliminates the need for any subsequent drying step. Water in combination with compression is used to adhere the granular bentonite layer to the inside surfaces of the cover sheet and the primary carrier sheet and further to provide structural stability to the bentonite layer itself.
Claims11
A geosynthetic clay liner formed by adhering granules of bentonite clay to inside surfaces of a carrier sheet and a cover sheet, without needle punching comprising:
- a primary carrier sheet;
- a cover sheet;
- a layer of compressed bentonite granules disposed between the primary carrier and cover sheets, the compressed bentonite granules having a moisture content of between about 20 and about 30 weight percent to enable the bentonite granules to adhere to the inside surface of the carrier sheet and cover sheet, without needle punching.
A geosynthetic clay liner formed by adhering granules of bentonite clay to inside surfaces of a carrier sheet and a cover sheet, without needle punching comprising:
- a woven primary carrier sheet;
- a woven cover sheet;
- a layer of compressed bentonite granules disposed between the primary carrier and cover sheets, the compressed bentonite granules having a moisture content of between about 20 and about 30 weight percent to enable the bentonite granules to adhere to the inside surfaces of the carrier sheet and cover sheet, without needle punching.
Dependencies are inferred from the claim text.