TY JOUR TI THE METHODS OF REPAIR AND STRENGTHENING CONCRETE CEILINGS BY EXTER-NAL CARBON FIBER REINFORCEMENT DURING RESTORING THEIR FUNCTIONAL STATE KW reinforcement KW composite materials KW carbon tapes KW reinforcement of concrete structures JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Rimshin, V.I. AU Kuzina, E.S. AU Valevich, D.M. PY 2018 IS 3 PB Belgorod State Technological University named after V.G. Shukhov