CHARGE FOR PRODUCTION OF CELLULAR HEAT RESISTANT CONCRETE Russian patent published in 2021 - IPC C04B38/10 

FIELD: building materials.

SUBSTANCE: invention relates to the field of building materials, in particular to heat-resistant concretes, intended for use at elevated temperatures. The charge for the manufacture of aerated heat-resistant concrete contains, wt%: Portland cement 50.79-55.11, sand with a grain size of no more than 0.63 mm 7.10-8.89, fireclay powder with a particle size of no more than 0.63 mm 0.58-1.02, protein-based foaming agent 0.35-0.37, silicic acid sol 0.01-0.03, water 36.85-38.90.

EFFECT: increased durability by reducing temperature shrinkage and increasing the number of air heat cycles.

1 cl, 1 tbl, 1 ex