Verification of applicability of weathering steel based on long-term exposure tests in Vietnam-Reference-Cited by-同舟云学术

Verification of applicability of weathering steel based on long-term exposure tests in Vietnam

Published:2021 Issue: Volume: Page:
ISSN:
Container-title:IABSE Congress, Christchurch 2021: Resilient technologies for sustainable infrastructure
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Author:

Miura Shinichi¹,Tung Dang Dang²,Iwasaki Eiji³

Affiliation:

1. Steel Research Laboratory, JFE Steel Corporation, Kurashiki, Japan

2. Faculty of Civil Engineering, Ho Chi Minh City University of Technology (HCMUT), VNUHCM, Vietnam

3. Department of Civil and Environmental Engineering, Nagaoka University of Technology, Nagaoka, Japan

Abstract

<p>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.</p>

Publisher

International Association for Bridge and Structural Engineering (IABSE)

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