FIELD: chemistry.
SUBSTANCE: composition of fire-resistant concretes includes components with the following component ratio, wt %: spent catalyst IM-2201 10-15, crushed stone 33-40, sand 10-13, H3PO4 10-15, electric arc furnace slag (which contains, wt %: SiO2 - 21.15; Al2O3 - 8.81; Fe2O3 - 14.9; CaO - 42.98; MgO - 11.77; SO3 - 0.24; Na2O - 0.07; K2O - 0.08) 24-30. EFFECT: increase of durability limit in compression and thermal-stability of fire-resistant concretes.
EFFECT: 3 tbl.
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