FIELD: chemistry.
SUBSTANCE: invention relates to construction materials. Fireproof composition for bearing and guarding concrete and reinforced concrete strictures of buildings and constructions includes, wt %: cement 40.0-48.4; swollen vermiculite 5.3-9.5; hydroxyethylcellulose 0.4-1.1; hardening accelerating agent - calcium chloride 1.2-2.0; phlogopite mica 5.9-14.5; hydrated lime 1.3-1.49; chalk - the remaining part, and is obtained by mixing for 5-7 minutes of said dry components.
EFFECT: increase of mechanical strength and fireproof effectiveness due to increase of time from beginning of fire impact to achievement of critical temperature on construction surface of critical level of its bearing ability with preservation of coating integrity.
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