FIELD: chemistry.
SUBSTANCE: invention relates to the industry of ceramic materials, primarily to compositions of mixtures for making porous aggregate. The ceramic mixture contains the following in wt %: liquid glass 45-65, sodium chloride 5-15, ore mining and processing mills wastes from coal beneficiation 15-20 and beidellite clay containing 85-90% beidellite mineral 15-20.
EFFECT: high splitting tensile strength of the porous aggregate.
1 cl, 3 tbl
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