TY JOUR TI THE ROLE OF FIXTURES OF FITTINGS IN CONSTRUCTIONS OF REINFORCED CON-CRETE KW plastic fasteners KW concrete fasteners KW strength KW crack resistance JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Borisyuk, E.A. AU Borodenko, S.A. PY 2018 IS 3 PB Belgorod State Technological University named after V.G. Shukhov