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Behavior of Repaired Reinforced Normal and High Strength Concrete Beams Failed in Shear | ||
| Journal of Engineering and Sustainable Development | ||
| Article 1, Volume 10, Issue 3, 2006, Pages 115-134 | ||
| Authors | ||
| Suha Rasheed Abbas; Mohammed Hashim Al-Sahlani; Bayan S. Al-Nu; | ||
| Abstract | ||
| This paper presents an investigation of the strength and deformation characteristics of reinforced concrete rectangular beams failed in shear and repaired by epoxy injection. Five simply supported reinforced normal-strength concrete (NSC) beams without shear reinforcement are used. The span of the simply supported beams is 1.28 m with 100 mm wide by 200 mm deep cross section. All beams are tested under two-point loads. A method of epoxy injection is used to repair cracks in the failed-in-shear beams. Careful repair process is adopted and proved successful. The Main conclusions are: a successful repair method is used to increase or at least restore the shear capacity of beams; repaired diagonal shear cracks do not reopen after retesting, instead, new nearby diagonal shear cracks are developed and the repaired beams show a lower stiffness and greater ductility than the original beams. | ||
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