FIELD: chemistry.
SUBSTANCE: off-grade broken glass is crushed with obtaining the finely ground glass powder. A pore-former, coarse-pored silicagel and a binding agent are added to the glass powder with formation of a foam-glass mixture. Coarse-pored silicagel is crushed to the particle size not larger than 80 mcm. The mixture is granulated and raw granules are foamed in the furnace with obtaining granulated foam glass.
EFFECT: extension of the raw material base, simplification of the method of producing granulated foam glass with the preservation of high alkali resistance of the obtained granulated foam glass.
3 cl, 2 tbl
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