COMPOSITION FOR PRODUCING POROUS AGGREGATE Russian patent published in 2012 - IPC C04B14/24 

FIELD: chemistry.

SUBSTANCE: composition contains the following in wt %: which is achieved by adding to the ceramic mass inter-slate clay formed when mining for shale oil which contains liquid glass, sodium chloride and wastes from ore mining and processing factories during coal beneficiation, with the following ratio of components in wt %: liquid glass 45-65, sodium chloride 5-15, and wastes from ore mining and processing factories during coal beneficiation 15-20, inter-slate clay formed when mining for shale oil, containing the following (wt %): SiO₂ - 41-45; Al₂O₃ - 10-12; Fe₂O₃ - 3-4; CaO - 11-13.5; MgO - 2-3; R₂O - 3-4; other impurities - 19-20 - 15-20.

EFFECT: high splitting tensile strength of the porous aggregate.

1 cl, 2 tbl