RAW MIX FOR PRODUCING CELLULAR HEAT-RESISTANT CONCRETE Russian patent published in 2023 - IPC C04B38/10 C04B28/04 C04B111/20 

FIELD: construction material.

SUBSTANCE: invention relates to construction material, in particular to heat-resistant concrete intended for use in high temperature conditions. Raw mix for for producing heat-resistant concrete contains, wt.%: Portland cement “ЦЕМ II/А-Ш 42,5Н” - 43.18-46.49, foaming agent on protein basis – 5.56-5.91, diabase powder with particle size of not more than 0.63 mm – 25.19-26.74, basalt fiber with a length of 6-12 mm - 0.87-0.92, diatomite powder with a specific surface area of 29200 cm²/g - 2.17-2.31, superplasticizer "MS-TechniFlow 80" - 0.15-0.16, water - 19.57-20.78.

EFFECT: invention provides possibility to increase cellular heat-resistant concrete residual strength after heating.

1 cl, 1 tbl, 1 ex