TY JOUR TI STUDY OF THE SYNERGETIC EFFECT OF ADDITIVE BASED ON CALCIUM HYDROSILICATES AND HYDROALUMINOSILICATES KW dry building mixtures KW lime KW synergistic effect KW calcium hydrosilicates KW calcium hydroaluminosilicates KW pozzolanic activity KW structure formation JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Loganina, V.I. AU Frolov, M.V. PY 2019 IS 4 PB Belgorod State Technological University named after V.G. Shukhov