COMPOSITION FOR MANUFACTURING HEAT-RESISTANT CONCRETES Russian patent published in 2015 - IPC C04B28/34 

FIELD: chemistry.

SUBSTANCE: invention relates to field of building materials, in particular to production of heat-resistant concretes (composites) based on chemical binding agents. Composition for manufacturing heat-resistant concretes includes, wt %: spent catalyst IM-2201 10-15, rubble of carbonate rocks of fraction 5-10 mm 33-40, limestone flour 10-13, H₃PO₄ 10-15, slurry, formed as a result of etching aluminium and its alloys with concentrated solutions of caustic soda with content, wt %: SiO₂ - 4.5; Al₂O₃ - 78.5; Fe₂O₃ - 2.9; CaO-2.5; MgO - 1.1; R₂O - 4.1; LOI - 6.4, 24-30.

EFFECT: increased compression strength and heat resistance limit of heat-resistant concretes, utilisation of industrial wastes.

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