FOAM-CERAMIC ITEMS PRODUCTION METHOD Russian patent published in 2005 - IPC

FIELD: construction materials industry.

SUBSTANCE: the invention is dealt with the field of construction materials industry, and primarily, with production of heat-resistant foam-ceramic materials. The method of production of foam-ceramic items provides for mixing of a fine-ground clay, a filler, a fiber, water and a foaming agent, molding of items, heating and calcination. In the capacity of the fiber use a basalt fiber or an asbestos fiber, or glass-fiber, and in the capacity of the filler - a ground glass or a burnt at the temperature of no less than 550°C, preferably 600°C, clay, in the capacity of foaming agent - a separately prepared foam. Additionally they enter a plasticizer, a liquid glass, phosphoric acid. Heating of items molded at a drying, is conducted at the temperature of 35-45°C, and their calcination - at the temperature of from above 940°C, preferably - 980°C. The ratio of the mixture compounds makes (in mass %): the clay 46-56, filler - 7.8-12.8, the liquid glass - 0.07-0.77, the indicated fiber - 0.39-0.43, the plasticizer - 0.13-0.23, phosphoric acid - 0.13-0.38, foam - 2.6-3.8, water - the rest. The technical result is an increase of strength, expansion of the source of raw materials of the initial components used for production of the foam-ceramic items and utilization of the man-caused waste products.

EFFECT: the invention ensures increased strength, expanded source of raw materials of the initial components for production of the foam-ceramic items, utilization of the man-caused waste products.

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