FIELD: industrialized construction. SUBSTANCE: described is composition for foamed composite material comprising acetonephenol production waste-formaldehyde condensation product, acid catalyst consisting of benzenesulfonic acid, orthophosphoric acid and ethylene glycol at weight ratio thereof of 1: 0.4: 0.3, respectively, and filler. Filler and foaming agent include dolomite rock, ratios of composition components being as follows, wt %: acetonephenol production waste-formaldehyde condensation product, 62-72; acid catalyst, 25-33; dolomite rock, 2-5. EFFECT: greater compression strength of the resulting material and reduced water absorption. 3 cl, 2 tbl
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