COMPOSITION FOR PRODUCTION OF HEAT RESISTANT CONCRETES Russian patent published in 2016 - IPC C04B28/34 C04B12/02 C04B111/20 

FIELD: construction.

SUBSTANCE: composition for production of heat resistant concretes, including spent catalyst IM-2201, carbonate crushed stone of fraction 5-10 mm, river sand with size modulus of 1.68 and H₃PO₄ with density of at least 1.69 g/cm³, additionally contains magnesium-containing slag from production of high-carbon ferrochrome with content of, wt %: Cr₂O₃ - 3.72; SiO₂ - 28.33; Al₂O₃ - 19.3; FeO - 0.94; CaO - 0.91; MgO - 46.8, at the following ratio of components, wt %: spent catalyst IM-2201 - 10-15, carbonate crushed stone of fraction 5-10 mm - 33-40, river sand with size modulus of 1.68 - 10-13, H₃PO₄ with density of at least 1.69 g/cm³ - 10-15, magnesium-containing slug of high-carbon ferrochome production with content of, wt %: Cr₂O₃ - 3.72; SiO₂ - 28.33; Al₂O₃ - 19.3; FeO - 0.94; CaO - 0.91; MgO - 46.8, - 24-30.

EFFECT: increased strength limit under compression and heat resistance of heat resistant concretes.

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