Verification of applicability of weathering steel based on long-term exposure tests in Vietnam
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Bibliographic Details
| Author(s): |
Shinichi Miura
(Steel Research Laboratory, JFE Steel Corporation, Kurashiki, Japan)
Dang Dang Tung (Faculty of Civil Engineering, Ho Chi Minh City University of Technology (HCMUT), VNUHCM, Vietnam) Eiji Iwasaki (Department of Civil and Environmental Engineering, Nagaoka University of Technology, Nagaoka, Japan) |
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| Medium: | conference paper | ||||
| Language(s): | English | ||||
| Conference: | IABSE Congress: Resilient technologies for sustainable infrastructure, Christchurch, New Zealand, 3-5 February 2021 | ||||
| Published in: | IABSE Congress Christchurch 2020 | ||||
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| Page(s): | 968-975 | ||||
| Total no. of pages: | 8 | ||||
| DOI: | 10.2749/christchurch.2021.0968 | ||||
| Abstract: |
Under the appropriate corrosion environment, weathering steel does not require paint, so it has reduced life cycle costs when compared to conventional steel. The applicability of weathering steel has been systematically investigated in countries like Japan and the United States of America. However, in Vietnam, the influence of environmental factors on corrosion behaviour and the applicability of weathering steel has been evaluated by short-term exposure tests. In this study, we performed long-term exposure tests in Vietnam to clarify the time-dependent changes of corrosion behaviour and to verify the applicability of weathering steel. The time-dependent changes of corrosion loss were dependent on the corrosion environment. The corrosion rate greatly increased in areas with high relative humidity. Weathering steel is applicable in various regions in Vietnam, but it should be applied carefully in areas with high relative humidity. |
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| Keywords: |
corrosion steel bridge weathering steel long-term exposure test airborne salt time of wetness
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