RAW MIXTURE FOR PREPARATION OF A FOAMED CONCRETE Russian patent published in 2004 - IPC

FIELD: building materials industry; production of cellular foamed concrete. SUBSTANCE: the invention is dealt with production of cellular building materials and may be used for production of the heat-insulating-constructional and heat insulating materials at manufacturing elements of buildings and structures in industrial and civil engineering. Technical result is an increase of the material water-resistance, an opportunity to produce the heat insulating materials with the stable design densities in the range of 300 up to 800 kg / m cu, an opportunity to use alkali silicate (liquid glass) made from microsilica earth with silica module of 2 up to 4, an opportunity of utilization of the industrial waste - microsilica earth and flue-ash, reduction of the mixture preparation time, decrease of the mixture production costs. The raw mixture for manufacturing the foamed concrete, including a weak soda glass, a siliceous component, a frothing agent, a hardener - sodium fluosilicate and water, contains a weak soda glass from microsilica earth with silica module from 2 up to 4 and a density of 1.35 - 1.45 g / cm cu. In the capacity of a siliceous component they use microsilica earth, in the capacity of a frothing agent - the frothing agent "Morpen" with addition of ash - flue taken at the following ratio of the components(in mass %): the indicated soluble silicate 63.41 - 69.04, microsilica earth 19.02 20.71, the frothing agent "Morpen" 0.04 - 0.27, sodium fluosilicate 6.34 - 6.90, ash - flue - 1.90 2.07, water 1.24 - 9.06. EFFECT: production of the heat insulating materials with the stable design densities and high water-resistance, utilization of the industrial waste - microsilica earth and flue-ash, reduction of the mixture preparation time and costs. 2 tbl