TY JOUR TI INCREASE OF CONCRETE INOXIDIZABILITY BY APPLICATION OF ACTIVE FILLERS OF THE SECOND TYPE KW fine concrete KW active fillers KW corrosion resistance KW the cement matrix KW contact area JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Tolypina, N.M. AU Schigoreva, E.M. AU Golovin, M.V. AU Schigorev, D.. PY 2019 IS 4 PB Belgorod State Technological University named after V.G. Shukhov