Method and composition for repairing cementitious surfaces

Details Method and composition for repairing cementitious surfaces Method and composition for repairing cementitious surfaces

1985-12-12

1987-04-21

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521172, 521173, 521174, 521176, 404 67, 404 69, 404 75, 404 78, C08G 1814

Patent

active

046597484

ABSTRACT:
An improved method and composition for repairing cementitious surfaces is provided. A polymerizable urethane composition having an excess of isocyanate groups to account for water present in the reaction environment is utilized. The method utilizes water, e.g. surface moisture, to foam the polymer and provide a long-lived repair of the surface. The method is particularly applicable in the repair of concrete roadways.

REFERENCES:
patent: 3723163 (1973-03-01), Schumacher
patent: 4139676 (1979-02-01), Janssen et al.
patent: 4275172 (1981-06-01), Barth et al.
patent: 4567708 (1986-02-01), Haekkinen

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