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Title |
An Experimental Study on Flexural Behavior of Beams Reinforced with Zinc-Coated Rebar
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DOI |
https://doi.org/10.4334/JKCI.2014.26.3.299 |
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Keywords |
아연코팅 ; 콘크리트 ; 휨 거동 ; 균열 ; 처짐 zinc-coating ; concrete ; flexural behavior ; crack ; deflection |
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Abstract |
Coating is one of the methods used to solve the problem of corrosion of reinforcement in concrete structures. There are few research reported in the literature regarding the effect of zinc-coating on flexural behavior compared to epoxy coating. The objective of this study was to determine whether zinc-coated rebar adversely affects flexural behavior. Concrete beams reinforced with black or zinc-coated steel were tested in flexure. The test variables included the presence of rebar surface coating with zinc, steel ratio used and cover depth. The study concentrated on comparing crack pattern, crack width, deflection and strain. The ultimate flexural capacity of beams reinforced with zinc-coated bars was not different from that of black steel reinforced beams. The results from deflection and crack width measurements were indicative of no significant variation for the different rebar surface conditions. In addition, it was found that load-strain curve of beam reinforced with zinc-coated steel was similar to that of beam reinforced with zinc-coated steel. Therefore, the test results indicated that the use of zinc-coated rebar had no adverse effect on flexural behavior compared to the use of black rebar.
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