TY JOUR TI MECHANISMS OF ACT OF VARIOUS KINDS OF ORGANIC MINERAL ADDITIVES IN CEMENT SYSTEM KW organic-mineral additives for concrete KW mineral additives for concrete KW chemical additives for concrete KW cement system KW roentgen-phase analysis JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Ledenev, A.A. AU Kozodaev, S.P. AU Percev, V.T. AU Baranov, E.V. AU Zagoruyko, T.V. AU Vnukov, D.N. PY 2021 IS 6 PB Belgorod State Technological University named after V.G. Shukhov