FIELD: construction materials.
SUBSTANCE: invention relates to construction materials and can be used in production of heat-insulating material, in particular, heat-insulating plates and panels. Crude mixture for producing geopolymer material contains components in the following ratio, wt.%: ash and slag wastes of Novocherkassk state district power station with fraction of 250 mcm and less than 65-71; NaOH powder 3-4; liquid glass 22-25; Al powder 2-3; MgO 2-3; process water, over 100 6-8.
EFFECT: obtaining foamed geopolymer with average density of not more than 330 kg/m3.
1 cl, 1 tbl, 5 ex
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