FIELD: chemistry.
SUBSTANCE: invention relates to making porous aggregate for concrete. The mixture for making porous aggregate contains the following in wt %: ground montmorillonite clay 60.0-62.0; coal 3.0-5.0; dolomite 10.0-15.0; pegmatite 20.0-25.0. The components ground such that they can pass through a No.014 netting.
EFFECT: high strength of the of the porous aggregate made from the mixture.
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