CERAMIC MASS Russian patent published in 2005 - IPC

FIELD: building industry and materials.

SUBSTANCE: invention relates to the composition of ceramic mass. Ceramic mass comprises light-melting clay raw, ground blast furnace ferromanganese granulated slag as a waste after cast iron smelting with the maximal size of particles 1.25 mm of the following composition, wt.-%: SiO₂, 33-39; CaO, 39-42; MgO, 7-10; Al₂O₃, 7-10; MnO, 4-8; FeO, 0.2-0.3; S, 2.4-2.7, and the ground depleted iron-containing catalyst as a waste in manufacturing ammonia, being these components are taken in the following ratio, wt.-%: light-melting clay raw, 80-90; indicated blast furnace ferromanganese slag, 9.85-19.9, and indicated depleted iron-containing catalyst, 0.1-0.15. Invention can be used in manufacturing wall ceramics (slotted stones, among them building bricks). The proposed invention provides enhancing the compression strength, crack-resistance values in drying and improving the architecture image due to elimination of granules (tubercles) of granulated slag projecting on their surface and elimination of gray-green-like tint on color surface of articles.

EFFECT: improved preparing method, improved and valuable properties of ceramic mass.

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