LIGHT CELLULAR CONCRETE Russian patent published in 2007 - IPC C04B38/10 

FIELD: building materials industry; production of the building materials.

SUBSTANCE: the invention is pertaining to building materials industry; production of the building materials and may be used for manufacture of the heat-insulation constructional materials and the heat-insulation materials at manufacture of the components of the buildings and structures in the industrial and civil engineering. The technical result of the invention is production of the heat-insulation materials with the average density from 300 up to 700 kg/m³ and the strength from 0.15 MPa up to 4 MPa. The light cellular concrete including the cement-free binding, the filler, the foam former, the foam stabilizer and the water contains in the capacity of the cement-free binding, the product of the intergrinding up to the specific surface of 600-750 m²/kg mixture, (in mass%): the calcium-high-share fly ash - 60-80, the spent molding sand of the foundry subjected to the magnetic treatment for separation of the cinder patches with the silica content above 90 % - 10-30 and the high-aluminous product with the contents of the alumina oxide above 80 % - the waste of abrasive production -5-10, and as the filler - the acidic ash of the dry selection produced after burning of the black coal, as the foam former is used "ПБ-2000" foam former, as the foam stabilizer they use the liquid sodium glass, and additionally - the super-plasticizer С-3. At that the indicated binding and the filler are previously subjected to the joint mechanical-chemical activation by the rod mill at the following components ratio (in mass %): the indicated cement-free binding - 28.4-32.1, the indicated acidic ash - 28.4-32,1, the super-plasticizer С-3 - 0.17-0.19, the liquid sodium glass - 0.16-0.2, the "ПБ-2000" foam former - О.16-0.2, water - 35.29-42.63.

EFFECT: the invention ensures production of the heat-insulation materials with the average density from 300 up to 700 kg/m³ and the strength from near to zero MPa up to 4 MPa.

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