TY JOUR TI INFLUENCE OF SODIUM HYDROXIDE ON THE PROPERTIES OF FOAMED GEOPOLYMERS BASED ON SOLID FUEL ENERGY WASTE KW ash and slag waste KW waste heap rock KW recycling KW geopolymer KW foaming. JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Izvarin, A.I. PY 2026 IS 11 PB Belgorod State Technological University named after V.G. Shukhov