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Performance Evaluation of Various Concrete Repair Materials to Corrosion Prevent of Rebar
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철근의 부식 방지를 위한 다양한 콘크리트 보수재료들의 성능평가

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Type
Academic journal
Author
Tae-Kyun Kim (한국건설기술연구원) Jong-Sub Park (한국건설기술연구원)
Journal
한국건설순환자원학회 Journal of the Korean Recycled Construction Resources Institute Vol.11 No.4 KCI Accredited Journals
Published
2023.12
Pages
458 - 466 (9page)

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Performance Evaluation of Various Concrete Repair Materials to Corrosion Prevent of Rebar
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Structures in our surroundings deteriorate over time due to environmental and chemical factors, resulting in a decrease in their performance. The primary causes of degradation in concrete structures are carbonation, salt damage, and freeze-thaw cycles. Various maintenance methods exist to address these degradation issues. However, research and technological development for existing maintenance methods have been ongoing, but the accuracy and effectiveness of repair materials and techniques have not been extensively validated. Therefore, in this study, we conducted a material performance evaluation of various manufacturers" repair materials. Based on this evaluation, we applied corrosion inhibitors and epoxy, which are the methods most closely related to crack repair, to assess the durability performance against carbonation, salt damage, and freeze-thaw cycles. The results show approximately a two-fold performance improvement against carbonation and salt damage, and a 5% enhancement in repair performance against freeze-thaw cycles. Thus, it is considered effective in preventing rebar corrosion when appropriate maintenance is carried out according to environmental and chemical factors during structural repairs.
#콘크리트 보수 #부식 #균열보수 #표면피복 #단면복구 #Concrete repair #Corrosion #Crack repair #Surface coating #Surface restoration

Contents

1. 서론
2. 콘크리트 보수방
3. 보수재료 성능 및 내구성 실험결과
4. 결론
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