Method of forming concrete structures

Details Method of forming concrete structures Method of forming concrete structures

1991-12-17

1992-08-18

Aftergut, Karen

Plastic and nonmetallic article shaping or treating: processes

Removal of liquid component or carrier through porous mold...

156230, 156291, 264219, 264333, 264338, 425 84, B28B 302, B28B 736, B32B 714

Patent

active

051397226

ABSTRACT:
In pressing wet concrete between a ram and a mold to compact the concrete and express water from it so as to produce a molded slab, a layer of filter material is provided between the ram or the base of the mold and the concrete and the filter material is secured by a discontinuous coat of adhesive applied as a transfer to the ram and/or to the base of the mold. The adhesive is applied over a sufficient area of the filter material to secure adhesion of the filter material to the ram or base of the mold. The discontinuous adhesive coating is provided as a pattern of particles which covers substantially the entire area of the face of the filter and is present over between 2% and 15% of the total surface area of the filter material.

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