Method for levelling sunken or broken portions of earth-supporte

Details Method for levelling sunken or broken portions of earth-supporte Method for levelling sunken or broken portions of earth-supporte

1983-09-27

1986-02-04

Friedman, Carl D.

Static structures (e.g., buildings)

Machine or implement

404 78, E04B 100

Patent

active

045677085

ABSTRACT:
The method relates to levelling sunken or broken portions of earth-supported floors or slabs (2, 2A). At least one hole (1) is made in the floor, and polyurethane foam is sprayed between the floor and the underlying earth through this hole. The foam creates in the space a mould pressure, which raises the floor.

REFERENCES:
patent: 2041266 (1936-05-01), Poulter
patent: 4240995 (1980-12-01), Milne
patent: 4470719 (1984-09-01), Dziark et al.

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