RAW MIXTURE FOR PREPARING CELLULAR MATERIAL AND METHOD FOR ITS PREPARING Russian patent published in 2003 - IPC

FIELD: building materials. SUBSTANCE: invention relates to methods for preparing acoustic, structural and heat-insulating cellular materials. Raw mixture for preparing cellular materials comprising binding agent, filling agent, pore-forming agent a foaming agent, dispersed reinforcement fibers and water involves fibers with fiber modulus of elasticity above cellular material modulus of elasticity, with cross section value 1 mm², not above, and ratio of length to square of cross section above 100 mm^-1 and comprises additionally admixture in the following ratio of components, weight %: binding agent, 41-55; filling agent, 1.5-58; admixture, 0.001-1.5; pore-forming agent, 0.01-2.5; dispersed fittings, 0.1-12; water, the balance. Portland cement or its species of sort 400, not less, or building gypsum of sort G6, not less, or self-stressing cement, or binding agent low water requirement are used as a binding agent. Ferrous chloride, or aluminum chloride, or sodium chloride, or calcium chloride, or granulated sodium sulfate, or C-3 are used as an admixture. Maximal size of filling agent doesn't exceed at its density in piece, respectively: 2.5 mm at density from 2 to 3 g/cm³; 5.0 mm at density from 1 to 2 g/cm³; 10 mm at density below 1 g/cm³. Method for preparing raw mixture involves stirring binding agent, filling agent, foaming agent, fibers and water in mixture being fibers are added chaotically and admixture is added at stirring in the following sequence of addition of components into mixer: water, binding agent, admixture, filling agent, foaming agent and fibers. Invention provides preparing cellular materials in the broad range of physical-chemical properties being with the required properties. EFFECT: improved preparing method, valuable properties of mixture. 5 cl, 1 tbl, 1 ex