MECHANICAL JOINTS IN ROLLED SCREW-THREADED REINFORCING BARS

Introduction. Russian manufacturers currently produce screw-threaded reinforcing bars (rebars) and couplers to join them. However, the application of such reinforcement in construction industry is hindered by a high compliance screw couplings. Aim: assess coupling joints reinforced with adhesives. Materials methods. The study used Av500P rebars, couplers, as well adhesive compounds containing cement binder epoxy resin. were injected into cavity means hand pumps, followed their natural hardening. tests conducted using universal testing machines. Results. In terms strength, yield, delaminatability, found meet required stress-strain properties couplers. Recommendations for assembling are provided. Conclusions. studies show that rebars can be joined construction.