Rehabilitation of the damaged glass-fiber reinforced concrete corbels using steel threaded rods

The aim of this thesis is to investigate the efficiency of using threaded rods in a confinement system to rehabilitate damaged glass-fiber reinforced concrete corbels. Some of the specimens were treated with crack repair epoxy before confining for further enhancement. This study is the first experimental investigation that studies rehabilitating reinforced concrete corbels using threaded rods and confinement technique. A total of 19 double sided damaged corbels with different mechanical properties and test parameters were used in the investigation. Differences in specimens are shear span, fiber percentage, diameter of main reinforcement, and concrete strength. All corbels have the same dimensions. Four different rehabilitation styles were tried for the investigation. The rehabilitated specimens were loaded under vertical load until failure. Test results show that the proposed rehabilitation techniques enhanced the bearing capacity of the corbels and improved the ductility remarkably.