Title of Invention	A SYNERGISTIC COMPOSITION AND A PROCESS FOR PREPARING THE COMPOSITION FOR MAKING BUILDING BRICKS AND TILES
Abstract	A synergistic composition for making building bruicks and tiles comprising a mixtrure of (a) 60% to 75% by weight of clay selected from attapulgite, kaolin, bentonite and or a mixture thereof (b), sludge in an amount of from 20% to 40% and (c) 1% to 10% by weight of sand, all percentages being by weight of the total composition.

Full Text

The present invention relates to a synergistic composition and a process for making building bricks and tiles. There is a need for new kind of bricks to replace the conventional ones. The conventional burnt clay bricks are heavier on the foundation and not as strong as the bricks produced by the present invention. The bricks made from the composition of the invention are lighter and have increased compression strength due to the presence of industrial waste. The disposal of waste is a global problem. Presently, all over the world the industrial waste is disposed off by dumping it down old mine shafts or into other remote landfill sites. But these alternatives do not provide a permanent solution to the problem of disposal of waste. As a result of growing increase in the production of waste due to increase in the number of industries, the scientific community and environmentalists have been concerned about the ecological imbalance and degradation caused by such wastes and pollutants. The present invention addresses itself to the problem and provides a composition which utilizes industrial waste amongst other ingredients for producing bricks and tiles which are lighter and stronger than the conventional bricks. The industrial waste is derived from the waste generated form electroplating. The disposal of such wastes varies from industry to industry. The industrial wastes from different industries are of different nature. For instance, the waste generated by a power plant is different from that generated by a nuclear plant. The industrial waste employed in the present invention comprises sludge. This sludge may contain hexavalent chromium beyond determination level [BDL], total chromium as chromium in the range of from 145 mg/kg to 1532 mg/kg, copper in the range of from 76.78 to 414 mg/kg and nickel in Ithe range of from 15.72 to 24.62 mg/kg. Bricks made of fly ash generated by power plants are well known. These bricks can be made of 50% to 80% by weight of fly ash, 1% to 5% by weight of alkaline additives and lime. A mix prepared with the foregoing ingredients is subjected to grinding and blending with water. The next step is of moulding the blended mix to obtain a shaped product such as a brick which is cured and aged by conventional methods. While the prior art composition and process do teach the preparation of a brick composition there is no teaching in respect of a synergistic com.position as claimed herein. In the present synergistic composition and process of making it, the ingredients of the composition are clay in an amount of from 60% to 75% by weight of the total composition, sludge in an amount of from 20% to 40% by weight and sand in an amount of 1% to 10% by weight. The especially preferred composition which shows the best results is the one which comprises 65% to 70% of clay, 25% to 30% of sludge and 1% to 5% of sand. Thus, the present invention is distinguishable on the basis of the constituents of the composition. The present invention pertained to a S5Tiergistic composition for making building bricks and tiles comprising a mixture of (a) 60% to 75% by weight of clay selected from attapulgite, kaolin, bentonite and a mixture thereof (b), sludge in an amount of from 20% to 40% and (c) by weight of sand, all percentages being by weight of the total composition. It will be clear from the foregoing description as well as the description contained hereinafter that a novel brick and tile making composition of I CLAIM: 1. A synergistic composition for making building bricks and tiles comprising a mixture of (a) 60% to 75% by weight of clay selected from attapulgite, kaolin, bentonite and or a mixture thereof (b), sludge in an amount of from 20% to 40% and (c) 1% to 10% by weight of sand, all percentages being by weight of the total composition. 2. A composition as claimed in claim 1, wherein the sludge has 25% to 35% of the total composition. 3. A composition as claimed in claim 1, wherein said clay is present in an amount of from 65% to 70%, sludge from 25% to 30% and sand is in an amount of from 1% to 5%. 4. A process for preparing a synergistic composition for making building bricks and tiles as claimed in claim 1, said process comprising mixing clay in an amount of from 60% to 75% by weight, sludge in an amount of from 20% to 40% and sand in an amount of 1% to 10% by weight, all percentages being by weight of the total composition to provide said composition. 5. A process as claimed in claim 4, wherein the clay added to the mixture is selected from attapulgite, kaolin, bentonite and or a mixture thereof. 6. A process as claimed in claim 4, wherein the sludge is added to the mixture in an amount of from 25% to 35% of the total composition. 7. A synergistic composition substantially as hereinbefore described with reference to and as illustrated in the accompanying drawings. 8. A process substantially as hereinbefore described with reference to and as illustrated in the accompanying drawings.

Documents:

0232-mas-2000 claims duplicate.pdf

0232-mas-2000 claims.pdf

0232-mas-2000 correspondence-others.pdf

0232-mas-2000 correspondence-po.pdf

0232-mas-2000 description (complete) duplicate.pdf

0232-mas-2000 description (complete).pdf

0232-mas-2000 drawings duplicate.pdf

0232-mas-2000 drawings.pdf

0232-mas-2000 form-1.pdf

0232-mas-2000 form-13.pdf

0232-mas-2000 form-19.pdf

0232-mas-2000 form-26.pdf

0232-mas-2000 form-3.pdf

0232-mas-2000 form-5.pdf

0232-mas-2000 form-6.pdf

0232-mas-2000 petition.pdf