TY JOUR TI EVALUATION OF THE EFFECTIVENESS OF GEOPOLYMER MODIFICATION WITH MINERAL FILLERS FROM THE POINT OF VIEW OF THE FORMATION OF STRENGTH CHARACTERISTICS KW geopolymer KW fly ash KW modifying agent KW strength properties JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Kozhuhova, N.I. AU Bukovcova, A.I. AU Plyushchenko, N.Y. AU Zhernovskaya, I.V. PY 2024 IS 9 PB Belgorod State Technological University named after V.G. Shukhov