CRUDE MIXTURE FOR PRODUCING NON-AUTOCLAVED AERATED CONCRETE AND METHOD OF PRODUCING NON-AUTOCLAVED AERATED CONCRETE Russian patent published in 2014 - IPC C04B38/02 C04B40/02 

FIELD: chemistry.

SUBSTANCE: group of inventions relates to crude mixtures and methods of producing non-autoclaved aerated concrete and can be used in the industry of structural materials to produce heat-insulation structural articles. The crude mixture for producing non-autoclaved aerated concrete includes, wt %: portland cement clinker 27.23-28.36, lump lime 4.5, sand 31,5, dihydrate gypsum stone 2.27, aluminium powder 0.08, sulphanole 0.001, calcium-magnesium-silicate-containing rock - diopside 1.42-2.55, aqueous electrolyte solution of Fe₂(SO₄)₃ or Al₂(SO₄)₃ 0.28, water - the balance. The method of producing non-autoclaved aerated concrete from said crude mixture includes mixed grinding of dry components of the crude mixture to specific surface area of 280-310 m²/kg, adding the aqueous electrolyte solution and water, mixing, adding the water-aluminium suspension and mixing, pouring the mixture into metal moulds and steam curing at 85°C.

EFFECT: improved physical and mechanical properties of non-autoclaved aerated concrete, easy production thereof.

2 cl, 1 ex, 5 tbl