COMPOSITION AND METHOD OF OBTAINING FOAM SILICATE MATERIAL Russian patent published in 2009 - IPC C04B28/26 C04B111/40 

FIELD: chemistry.

SUBSTANCE: invention concerns construction material production, particularly manufacturing of high-performance noncombustible heat insulation materials based on liquid glass and natural silicates. Composition for foam silicate material includes, wt %: liquid glass 70-90; filler 5-25; saturated CaCl₂ and AlCl₃ solution 3-5. Method of obtaining foam silicate material involves mixing of liquid glass with fine filler in a mixer, granulation of obtained mix in calcium chloride CaCl₂ solution, granule drying, granule placement in metal mould and boiling in closed mould vessel in furnace to obtain material with given dimensions. Granulation is performed by dipping the mix through separation funnel into saturated solution of CaCl₂ additionally including aluminium chloride AlCl₃, and tempering of mix in solution for 20 minutes, drying is performed after filling mould, in drying chamber at 60°C for 40 minutes, boiling is performed in furnace at 350-380°C for 1 hour at the described component ratio.

EFFECT: improved durability properties preserving water resistance, stabilisation of material properties, reduced power cost of production.

2 cl, 1 tbl, 4 ex