A study on the Corrosion Resistance of Cr-bearing Rebar in Mortar in Corrosive Environments Involving Chloride attack and Carbonation
- Title
- A study on the Corrosion Resistance of Cr-bearing Rebar in Mortar in Corrosive Environments Involving Chloride attack and Carbonation
- Author
- 태성호
- Keywords
- Cr-bearing rebar; corrosion resistance; chloride attack; carbonation; corrosion rate
- Issue Date
- 2007-05
- Publisher
- IRON STEEL INST JAPAN KEIDANREN KAIKAN
- Citation
- ISIJ INTERNATIONAL, v. 47, No. 5, Page. 715-722
- Abstract
- Nine types of reinforcing steels having different Cr contents were placed in mortar simulating environments involving chloride attack, carbonation, and combined deterioration and subjected to corrosion-accelerating test for fundamental research on the corrosion resistance of Cr-bearing rebars in corrosive environments where reinforced concrete structures are to be constructed. The polarization resistance and corrosion potential of Cr-bearing rebars were then measured at temperatures of 60, 40, and 20 degrees C to investigate their electrochemical properties in corrosive environments. Their corrosion area and average corrosion rate at the end of 40 cycles of corrosion-accelerating testing were also calculated to investigate their corrosion resistance. As a result, the corrosion resistance of Cr-bearing rebars was found to increase as their Cr content increases in all corrosive environments, and the excellent corrosion resistance of Cr-bearing rebars with Cr contents of 5 % or more and 7 % or more was confirmed in uncarbonated and carbonated environments, respectively, with a chloride ion content of 1.2 kg/m(3).
- URI
- https://www.jstage.jst.go.jp/article/isijinternational/47/5/47_5_715/_article/-char/ja/https://repository.hanyang.ac.kr/handle/20.500.11754/106491
- ISSN
- 0915-1559; 1347-5460
- DOI
- 10.2355/isijinternational.47.715
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ARCHITECTURE(건축학부) > Articles
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