Process for forming decorative concrete slabs

Details Process for forming decorative concrete slabs Process for forming decorative concrete slabs

1991-10-16

1992-12-22

Aftergut, Karen

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Stratified or layered articles

264 24, 264 69, 264 71, 264 73, 264118, 264122, 264139, 264162, 264245, 264333, B28B 108, B29C 3912, B32B 3100

Patent

active

051732335

ABSTRACT:
A process for forming a poured slab, preferably of concrete, which has different colored portions. The process includes (a) pouring a wet concrete mixture of cement particles, sand particles and gravel particles into a horizontal mold cavity having a stepped mold bottom surface, (b) curing the mixture to produce a slab with a roughly horizontal rear surface and a stepped front surface corresponding to the mould bottom surface, and (c) mechanically removing the cured mixture between a cut plane generally parallel the rear surface through the slab and the front surface. The resultant slab has different portions with different coloration and appearance due to the cut plane passing through portions of the concrete having different proportions of cement, sand and gravel particles.

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