Research and Application of Materials Science

Research Progress on Ionic Erosion of Steel-reinforced Concrete Structures under Marine Environments

FANLei (School of Civil Engineering and Architecture, Zhejiang University of Science & Technology；Zhejiang- Singapore Joint Laboratory for Urban Renewal and Future City), ZHENGJinhao (School of Civil Engineering and Architecture, Zhejiang University of Science & Technology；Zhejiang- Singapore Joint Laboratory for Urban Renewal and Future City), WUChengtao (School of Civil Engineering and Architecture, Zhejiang University of Science & Technology；Zhejiang- Singapore Joint Laboratory for Urban Renewal and Future City)

Abstract


As one of the most widely used structural forms in the world, reinforced concrete structures have been widely used in various infrastructure construction. However, the corrosion of steel bars in concrete often leads to durability failure of reinforced concrete structures, leaving the structure unable to meet the requirements of design life. In reinforced concrete structures in marine environments, corrosion and degradation of steel bars caused by chloride ions is one of the important reasons for the durability failure of the structures. In this paper, the chloride ion erosion mechanism of concrete, steel bars and concrete-steel transition zone is introduced, the influence mechanism of different marine environmental factors on chloride ion erosion is clarified.

Keywords


Steel-Reinforced Concrete, Ionic erosion, Marine Environments, Transition Zone, Durability

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References


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DOI: https://doi.org/10.33142/rams.v6i2.14582

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