Moisture-impervious panel capable of delayed, rapid hydration

Details Moisture-impervious panel capable of delayed, rapid hydration Moisture-impervious panel capable of delayed, rapid hydration

1991-05-29

1993-02-23

Scherbel, David A.

Static structures (e.g., buildings)

Processes

Filling preformed cavity

521695, 5216914, 52302, 52303, E02D 314

Patent

active

051879158

ABSTRACT:
A panel, and method of making the panel, useful as a water barrier including an intermediate layer of a water-swellable colloidal clay, such as bentonite, sandwiched between two layers of sheet material, such as paperboard, wherein at least one of the sheet material layers has a plurality of spaced apertures, or water channels, extending from the exterior of the panel to the intermediate water-swellable clay layer. The sheet material layer containing water channels includes a coating of a removable material completely across the water channels in the facing sheet having controlled, predetermined water-solubility so that the intermediate water-swellable clay layer is quickly hydrated after solubilization and removal of the coating material, and to prevent clay hydration during installation, prior to removal of the coating material.

REFERENCES:
patent: 3186896 (1965-06-01), Clem
patent: 4850165 (1989-07-01), Ohern

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