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Corrosion Resistance of Cr-bearing Rebar in Concrete with Chloride Ion Content

Title
Corrosion Resistance of Cr-bearing Rebar in Concrete with Chloride Ion Content
Author
이한승
Keywords
Cr-bearing rebar; corrosion resistance; chloride ion; half-cell potential; corrosion area; weight loss; average corrosion rate
Issue Date
2006-07
Publisher
IRON STEEL INST JAPAN KEIDANREN KAIKAN
Citation
ISIJ INTERNATIONAL, v. 46, No. 7, Page. 1075-1080
Abstract
As a fundamental study on the performance of Cr-bearing rebars in steel reinforced concrete structures exposed to corrosive environments, The test specimens were made by installing 8 types of rebars in concretes with a chloride ion content of 0.3, 0.6, 1.2, 2.4 and 24 kg/m(3). Corrosion accelerated curing were then conducted with them. The corrosion resistance of Cr-bearing rebars was examined by measuring crack widths, half-cell potential, corrosion area and weight loss after 155 cycles of corrosion-accelerating curing. The results of the study showed that the corrosion resistance increased as the Cr content increased regardless of the content of chloride ions, and that the Cr-bearing rebars with a Cr content of 5% and 9% showed high corrosion resistance in concretes with a chloride ion content of 1.2 and 2.4 kg/m(3), respectively.
URI
https://www.jstage.jst.go.jp/article/isijinternational/46/7/46_7_1075/_article/-char/ja/http://repository.hanyang.ac.kr/handle/20.500.11754/108323
ISSN
0915-1559; 1347-5460
DOI
10.2355/isijinternational.46.1075
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ARCHITECTURE(건축학부) > Articles
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