Composition and process for making building bricks and tiles
OwnerTheophilis A. Devagnanaminventor
Life of this patent
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Abstract
Building bricks and tiles are made by mixing 60% to 75% clay, 20% to 40% sludge and 1% to 10% sand, all percentages being by weight of the total composition. This process utilizes industrial waste products to provide building materials which are lighter and stronger than conventional materials.
Claims10
A synergistic composition for making building bricks and tiles comprising a mixture of (a) clay present in an amount of from 60% to 75%, (b) sludge comprising chromium in an amount of from 145 mg/kg to 1532 mg/kg, the sludge being present an amount of from 20% to 40% and (c) sand present in the amount of from 1% to 10%, wherein the percentages are by weight of the total composition.
A process for preparing a synergistic composition for making building bricks and tiles comprising the steps of:
- mixing clay, sludge comprising chromium in an amount of from 145 mg/kg to 1532 mg/kg, and sand, the clay being present in an amount of from 60% to 75%, the sludge being present in an amount of from 20% to 40% and the sand being present in an amount of 1% to 10%, the percentages being by weight of the total composition;
- forming the mixture into a shape;
- drying the mixture, and firing the mixture.
Dependencies are inferred from the claim text.