METHOD OF CEMENT WOOD MANUFACTURE Russian patent published in 2008 - IPC C04B28/00 

FIELD: construction.

SUBSTANCE: method of cement wood manufacture includes preliminary moistening of wood filler with its further treatment with liquid glass from microsilica with silicate module of n=4 and maturing in air. Dispensing and mixing of all components. Molding and hardening of items in steam-curing chamber, at that items are made of raw material mixture that consists of processed wood filler, ash-alkaline astringent represented by flue ash of II field from burning of brown Kansko-Achinskiy coal in heat station TEC-7 of Bratsk town in Irkutsk oblast and liquid glass, as wood filler pine bark is used with size of particles below 5 mm, apparent density of 200-210 kg/m moisturised up to 15%-humidity, and then treated with liquid glass made of large-tonnage waste products of ferroalloy production of Bratsk ferroalloy manufacturing plant - microsilica that contains in its composition fine-grained admixtures in the form of 5-7 wt % of graphite and 6-7 wt % (3-modification of silicon carbide, with silicate module of n=4 and density of p=1.33-1.34 g/cm³) with further maturing in air for 45 minutes. As mentioned liquid glass liquid glass is used with silicate module of n=1 and density p=1.41-1.46 g/cm³, with the following ratio of components, mass fractions: mentioned bark 1.0, specified liquid glass (n=4) 0.2, mentioned flue ash 2.1-2.2, mentioned liquid glass (n=1) 2.1-2.2.

EFFECT: increase of material strength.

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