TY JOUR TI INFLUENCE OF THE PARAMETERS OF AN ALUMOSILICATE ADDITIVE BASED ON MOUNTAIN SAND ON THE PROPERTIES OF SULFATE-RESISTANT PORTLAND CEMENT KW portland cement KW aluminosilicate additive KW mountain sand of the Kildyam deposit KW sulfate resistance JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Vasileva, D.V. AU Popov, A.L. AU Mestnikov, A.E. PY 2022 IS 7 PB Belgorod State Technological University named after V.G. Shukhov