CERAMIC MASS TO MANUFACTURE CERAMIC BRICK Russian patent published in 2012 - IPC C04B33/135 

FIELD: construction.

SUBSTANCE: ceramic mass to manufacture ceramic brick contains fusible clay and ash and slag mixture from combustion of burnable shales with the following content, wt %: SiO₂ - 35-37; Al₂O₃ - 10-11; Fe₂O₃ - 7.5-10; CaO - 20-23; MgO - 2-2.5; R₂O - 2-3, SO₃ - 3-5; ignition loss - 14-19; at the following ratio of components, wt %: fusible clay - 70-90; ash and slag mixture from combustion of burnable shales - 10-30.

EFFECT: improved frost resistance and heat resistance of products.

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