Method and mold for preparing a finished concrete part

Details Method and mold for preparing a finished concrete part Method and mold for preparing a finished concrete part

B - Operations, Transporting

28

B

25/101, 25/85

B28B 21/36 (2006.01) B28B 7/36 (2006.01) B28B 21/78 (2006.01)

Patent

CA 1109238

ABSTRACT OF THE DISCLOSURE A finished concrete part is prepared in a casting mold with a perforated mold wall. A pliable thermoplastic film is placed over the inner surface of the casting mold wall, the film is heated sufficiently to make it supple enough to conform to the inner mold wall surface, the supple film is sucked against the inner mold wall surface under vacuum, the lined mold is filled with concrete, the concrete is permitted to harden in the lined mold while being vibrated to compact the concrete in the mold during hardening, and the hardened finished concrete part is removed from the mold.

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