CRUDE MIXTURE FOR PRODUCING FOAM CONCRETE Russian patent published in 2014 - IPC C04B38/02 B82B3/00 

FIELD: chemistry.

SUBSTANCE: invention relates to structural materials and specifically to compositions for producing foam concrete and articles based thereon, which can be used in industrial and civil engineering. The crude mixture for producing foam concrete contains, wt %: portland cement 8.9-10.5, unslaked lime 41.4-43.8, process additives - dry wastes from cutting foam concrete blocks, aluminium powder and a surfactant - superplasticiser Relamix PK 8.97-9.8, multilayer carbon nanotubes, the surface of which is chemically functionalised with oxygen-containing groups 0.0003-0.03, water 35.881-40.7297, wherein said nanotubes are added to the surfactant - superplasticiser Relamix PK, followed by ultrasonic treatment of the obtained suspension with said nanotubes. The invention is developed in subclaims.

EFFECT: obtaining foam concrete with improved strength and heat-insulation properties.

3 cl, 2 dwg, 1 tbl, 1 ex