COMPOSITION FOR PREPARING POLYSTYRENE CONCRETE MIX Russian patent published in 2000 - IPC

FIELD: building industry, more particularly manufacture of building materials from polystyrene concrete. SUBSTANCE: composition comprises, wt.%: mineral binder, 68-90; polystyrene filler, 0.7-2.3; fibrous material, 1.4-5.2; air attaching additive, 0.3-0.7; plasticizing additive, 0.25-0.55 and water, the balance. Polystyrene filler is mixture of particles from foamed polystyrene granules having 0.04-1.25 mm fraction and/or particles of broken foam polystyrene having 0.04-1.63 mm fraction at weight ratio thereof 1: (8-12). EFFECT: reduced water absorption and sorption moisture content of polystyrene concrete by 35-70 % and ultimate compression strength is increased by 3-5 times at density of polystyrene concrete of 850-1120 kg/cubic m. 5 cl, 2 tbl