Method of producing a decorative construction material

Details Method of producing a decorative construction material Method of producing a decorative construction material

1997-12-22

1999-04-20

Silverman, Stanley S.

Glass manufacturing

Processes

With shaping of particulate material and subsequent fusing...

65 19, 65144, C03B 1906

Patent

active

058955119

ABSTRACT:
A method of producing a resilient decorative construction material from waste products such as slag granulate or waste glass granulate is taught. The waste glass granulate may contain paper, adhesives, plastic, or other contaminants. The construction material may be in the shape of a tile and used in interior or exterior applications. A layer of material comprising glass granulate, slag granulate, or sand, or mixtures thereof, is placed in a heat-resistant mold. The layer has first and second surfaces. The layer is thermally treated, and is initially heated so that a temperature gradient is established throughout the layer, with the first surface having a first temperature no greater than the softening point, and the second surface having a second temperature less than the first temperature. These temperatures are held for a period of time, and the layer subjected to further heating. The further heating is to a temperature sufficient to sinter the layer, and also to reverse the temperature gradient throughout the layer, so that the first surface has a lower temperature than the second surface. These temperatures are held for a period of time sufficient to sinter the layer into a construction material. The layer is then cooled and annealed to produce the final product.

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