Observation of Rebar Corrosion in a 48-Year-Old RC Building under Airborne Salt Environment
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- Tsuchiya N.
- 国土技術政策総合研究所
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- Suzuki Y.
- 安藤ハザマ技術研究所
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- Yamashita K.
- (株)鴻池組 技術研究所 つくばテクノセンター
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- Kishimoto G.
- 東洋建設(株) 総合技術研究所 美浦研究所
Bibliographic Information
- Other Title
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- 飛来塩分環境下にある築48年RC造建築の鉄筋腐食の観察
Abstract
<p>Surface observation and component analysis were conducted on rebar obtained from a 48-year-old reinforced concrete building under an environment with airborne salt in order to estimate the cause of their deterioration. Measurements included surface observation by microscope and SEM, as well as component analysis by EDS, XRD/XRF, and EPMA. Although the details of the building were purposefully concealed at the time of testing during surface observation and analysis of the specimens, a comprehensive examination of the results of each test made it possible to infer that the corrosion of rebar may have progressed due to airborne salt and carbonation, rather than internal chloride. Furthermore, although this was limited to a single case, the authors were able to show the shape and component distribution of corrosion product under an actual exposure environment.</p>
Journal
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- Concrete Journal
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Concrete Journal 61 (4), 312-319, 2023
Japan Concrete Institute
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Details 詳細情報について
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- CRID
- 1390581148794881408
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- ISSN
- 21862753
- 03871061
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- Text Lang
- ja
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- Data Source
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- JaLC
- Crossref
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- Abstract License Flag
- Disallowed