TY JOUR TI BINDING COMPOSITIONS FOR FINE-GRAINED CONCRETE IN PILE FOUNDATIONS KW binders KW vibration mill KW rotary ball mill KW quartzite sandstone KW wet magnetic separation waste KW fine-grained concrete KW pile foundations JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Gubarev, S.A. AU Zagorodnyuk, L.K. AU Ageeva, M.S. AU Chernukha, D.G. AU Chzhan, S.. PY 2025 IS 10 PB Belgorod State Technological University named after V.G. Shukhov