CERAMIC MIXTURE FOR CERAMIC BRICK PRODUCTION Russian patent published in 2008 - IPC C04B33/138 

FIELD: construction; chemistry.

SUBSTANCE: ceramic mixture for brick production contains beidellite low-melting clay with the upper refractoriness temperature threshold, which is close to high-melting clay temperature, ach-and-sludge material with organic substances content from 15-25% and wollastonite containing sludge from phosphor production at the following ratio of components, wt %: beidellite low-melting clay - 50-70; ach-and-sludge material - 15-25; wollastonite containing sludge from phosphor production - 15-25.

EFFECT: improved acid resistance and frost resistance of items.

3 tbl