Bubble relief form for concrete

Details Bubble relief form for concrete Bubble relief form for concrete

1984-04-06

1987-10-27

Woo, Jay H.

Static structures (e.g., buildings)

Specified terranean relationship

With drain or vent exterior to foundation perimeter

5216911, 52454, 52577, 52687, 249 2, 249 13, 249189, E04B 538

Patent

active

047020482

ABSTRACT:
A rigid, light-weight, thermoplastic bubble insulation form for cast in situ concrete slabs includes hemispherical void spaces for reduction of concrete volume and thermal insulation characteristics. An upper hemispheric surface provides an integral seating arrangement for wire mesh reinforcement. An under-surface of the form includes spacer nodules for facilitating drainage. The bubble relief form is water impervious for controlling curing of the concrete and further is supplied in modular units adapted for trimming and overlapping spliced connections.

REFERENCES:
patent: 495872 (1893-04-01), Ball
patent: 534633 (1895-02-01), Coleman
patent: 1525172 (1925-02-01), Eberhard
patent: 1580485 (1926-04-01), Rice
patent: 2653525 (1953-09-01), McGuire
patent: 3802147 (1974-04-01), O'Konski
patent: 3892902 (1975-07-01), Ilukowicz
patent: 3967747 (1976-07-01), Wagner
patent: 4426002 (1984-01-01), Rez

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