Apparatus for hollow concrete wall construction

Details Apparatus for hollow concrete wall construction Apparatus for hollow concrete wall construction

1985-04-16

1987-09-01

Woo, Jay H.

Static molds

In situ construction engineering type or building type-mold...

Forming building structure

249 38, 249 39, 249 79, 249113, 249141, 249145, 249175, 264 86, 425 84, E04G 1108

Patent

active

046903682

ABSTRACT:
A spacer core for use in constructing hollow concrete walls by introducing the core between and spaced from a pair of vertical mold plates before casting the wet concrete, and subsequently removing the spacer core, the lower end of the spacer core including a water permeable wall and a bottom chamber for accumulating water permeating the wall. Also described is a method of constructing hollow concrete walls by the use of the above spacer core by: introducing the spacer core between and spaced from a pair of vertical mold plates; casting wet concrete into the spaces between the spacer core and the mold plates, whereby the water from the concrete permeates through the bottom of the spacer core into the bottom chamber; after a first time interval, lifting the spacer core a first predetermined distance to draw water from the concrete into the bottom chamber; and subsequently removing the spacer core from the concrete.

REFERENCES:
patent: 1989409 (1935-01-01), Gordon
patent: 2111562 (1938-03-01), Hughson
patent: 2361933 (1944-11-01), Ferla
patent: 2533263 (1950-12-01), Johnson
patent: 2585756 (1952-02-01), Eschenbrenner
patent: 3530555 (1970-09-01), Walker et al.
patent: 3809513 (1974-05-01), Sellers et al.
patent: 4076474 (1978-02-01), Catenacci
patent: 4291064 (1981-09-01), Retzlaff

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