TY JOUR TI CALCULATION OF THE OPTIMAL COMPOSITION OF A GLASS-ALKALI BINDER USING MATHEMATICAL EXPERIMENT PLANNING KW cullet utilization KW binder composition KW main components KW variation intervals KW experiment planning matrix KW regression equation JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Voroncov, V.M. AU Ryabceva, S.V. AU Yaremchuk, M.V. PY 2025 IS 10 PB Belgorod State Technological University named after V.G. Shukhov