FIELD: construction.
SUBSTANCE: charge for the production of heat-insulating refractory concrete, containing diatomite, ground to a specific surface of at least 3000 cm2/W, wollastonite concentrate in the form of monofraction with a needle length of 80 mcm, wherein the mixture of wollastonite (crystalline structure and amorphous form) and diatomite is in a ratio of 50:50, contains nepheline sludge with moisture content of 15-20%, and said diatomite and concentrate in the ratio of 1:1 at the following ratio of components, wt %: said diatomite 26-35, said wollastonite concentrate 26-35, said nepheline sludge (in terms of SiO2) the rest.
EFFECT: increasing heat-insulating properties with improvement of production ecology.
1 ex, 2 tbl, 1 dwg
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