TY JOUR TI GYPSUM-POLYSTYRENE COMPOSITES FOR BUILDING INDUSTRY KW gypsum KW insoluble anhydrite KW hemihydrate gypsum KW cullet KW polystyrene foam KW thermal conductivity KW heat-insulation materials JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Klimenko, V.. AU Pavlenko, V.. AU Gasanov, S.. AU Mamin, S.. PY 2016 IS 1 PB Belgorod State Technological University named after V.G. Shukhov