CERAMIC MASS Russian patent published in 2006 - IPC C04B33/00 

FIELD: building industry, in particular ceramic mass composition useful in production of facing brick, lining panels, etc.

SUBSTANCE: claimed mass contains (mass %) heat treated clay fusible raw materials with completely burned carbon and organic admixtures and wherein pyrite is completely converted to Fe₂O₃ 83-85; carbon-containing refractory clay 8.5-10; and law calcium lignite ash 2.0-5; crushed glass 0.9-1.5; vermiculite expanded 0-1.25-grade sand 1.5-2.0; waste from chalk production containing 48-49 mass % of hydrated lime as plasticizer 0.1-0.5.

EFFECT: dry brick of increased strength due to improved homogenizing of mixture component without losses of end item frost-resistance.

4 ex, 2 tbl