FIELD: chemistry.
SUBSTANCE: invention relates to making porous aggregate for concrete. The mixture for making porous aggregate contains the following, wt %: ground coal 5.0-6.0, ground dolomite 30.0-35.0, ground blast furnace slag 5.0-7.0, carboxymethyl cellulose 0.05-0.1, montmorillonite clay - the rest.
EFFECT: higher strength of porous aggregate.
1 tbl
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