FIREPROOF COMPOSITION FOR CONCRETE, METAL AND WOOD Russian patent published in 1999 - IPC

FIELD: building materials industry, more particularly composition is useful in manufacturing fireproof compositions for building structure from concrete, metal and wood. SUBSTANCE: fireproof composition comprises, wt % liquid glass or silicophosphate binder 55-65; kaolin, 7-10; calcium carbonate, 8-13; swollen vermiculite, 10- 15; fly ash, 8-12. Composition also comprises, in addition to 100%, inorganic fiber, 4.5-5 or polyvinyl alcohol, 3-4, or nephelinic antipyrene 1.5-2%. EFFECT: fire proofness limit is maintained for 0.75-1 h, 1 group of fireproof effectiveness for wood, starting swelling temperature is 180-200 C. 4 cl, 2 tbl