Deteriorated structure repair method and substratum for restorin

Details Deteriorated structure repair method and substratum for restorin Deteriorated structure repair method and substratum for restorin

1992-10-26

1993-12-07

Welsh, Maurice J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521 53, 521 82, 521 99, 428 344, 428 347, 428 365, 428159, 428160, 4283084, 4284255, 427136, 427140, 4272071, 427230, 427273, 427413, C08G 1814

Patent

active

052683923

ABSTRACT:
A concrete fluid structure deteriorated to the condition of removal of substance of the concrete by sulfuric acids and like corrosive material in contact therewith is restored by a substratum of epoxy foam, polyurethane foam, or a combination thereof having a relatively thin layer of polyvinyl chloride or polyethylene bonded to the outward facing surface of the foam and bonding the layer to the structure. A method for forming the substratum in the location of the deteriorated structure is described.

REFERENCES:
patent: 4792493 (1988-12-01), Bertram et al.

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