RAW MIXTURE FOR PRODUCTION OF THE FOAM CERAMICS Russian patent published in 2006 - IPC C04B38/10 

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

SUBSTANCE: the invention is pertaining to the building materials and may be used for production of the constructional and the heat-insulating products out of the foam ceramics. The technical result of the invention consists in the decreased density of the foam ceramic products, reduced thermal conductivity. The raw materials mixture for manufacture of the foam ceramics includes the clay, the filler-chamotte, the glass fiber, the foam swelling agent and water. As the swelling agent it contains the foam prepared from 3 percent water solution of the horse-chestnuts filtrate, produced by comminution of the horse chestnuts in the water medium at the ratio of the water and horse chestnuts as 1:3, aging of the produced mixture for no less than three hours, its filtration, acidification of the produced filtrate up to pH = 5 and neutralization by alkali; and additionally - the foam stabilizer - a metal sulfate at the following ratio of components (in mass %): clay - 40-60, chamotte - 6-18, glass fiber - 0.36-0.52, filtrate of horse chestnuts - 0.18-0.24, the metal sulfate - 2.0-4.0, water - the rest.

EFFECT: the invention ensures the decreased density of the foam ceramic products and reduced thermal conductivity.

5 cl, 2 tbl