GB190812597A - The Manufacture of a New Building Material. - Google Patents

Abstract

12,597. Cawley, J., and Moore, W. S. June 12. Bricks, blocks, slabs, tiles, &c. are made of a mixture of lime waste from chemical works with clay and other suitable ingredients. When intended for outdoor use, the clay in the plastic or other state is added to the waste lime as obtained from the chemical works in the proportion of 80 to 20, the mixture being moulded, pressed, and fired in the usual way. As an alternative, both substances may be first reduced to powder, then mixed, incorporated with water, and finally burnt. A certain proportion of cement may be added to act as a bindmgagent. When intended for indoor use, from 25 to 50 per cent of chemical lime waste is used with from 75 to 50 per cent of clay. Sawdust may be added when a light product is required. This material is suitable for use as fireproof flooring, or for protecting girders, stanchions, and the like. For partition slabs, the quantity of clay used is reduced, and in some cases dispensed with, plaster of paris being used in its place. [Reference has been directed under Section 7 of Patents &c. Act, 1907, to Specification No. 27,173, A.D. 1898.]