TY JOUR TI Characteristics of slag cement with complex activator with gypsum-bearing waste KW blast furnace granulated slag KW cement slag KW gypsum-bearing waste KW complex alkaline activator KW strength characteristics JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Glazkov, R.A. AU Kozhuhova, N.I. AU Botsman, L.N. AU Zhernovskaya, I.V. PY 2026 IS 11 PB Belgorod State Technological University named after V.G. Shukhov