COMPOSITION FOR HEAT-RESISTANT COMPOSITES PRODUCTION Russian patent published in 2017 - IPC C04B28/34 C04B18/02 C04B18/14 C04B111/20 

FIELD: chemistry.

SUBSTANCE: composition for manufacture of heat-resistant composites (concretes), including spent catalyst IM-2201, carbonate rock rubble with an average grain density of 2-2.5 kg/m³, fraction of 5-10 mm, H₃RO₄, density of at least 1.69 g/cm³, and aluminochromous waste of aluminium alloys etching with particle size of 0.1 to 5 m, also comprises ferrosilicon production slag, milled to pass through a 0.14 mm sieve, with oxides content, wt %: SiO₂ - 49.4; Al₂O₃ - 6.8; Fe₂O₃ - 4.4; CaO - 24.5; MgO - 15.1 at the following ratio, wt %: spent catalyst IM-2201 - 10-15, carbonate rock rubble with an average grain density of 2-2.5 kg/m³ - 33-40 , H₃RO₄ - 10-15, aluminochromous waste of aluminum alloys etching - 24-30, ferrosilicon production slag - 10-13. Application of man-made materials for heat-resistant concrete preparation contributes to industrial waste recycling, environmental protection, expansion of the raw material base for building materials.

EFFECT: high ultimate compression strength and heat-resistance of the heat-resistant composites.

3 tbl