What is it about?
Epoxy coated rebars are widely used in the construction industry. The inadequate practices at sites lead to poor performance of epoxy coated rebars. The inadequate practices are the result of non-stringent specifications in standards. This paper recommends making specifications more stringent to achieve durable concrete structures.
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Why is it important?
Worldwide, fusion-bonded-epoxy (FBE) coated steel rebars are used in anticipation of enhanced corrosion resistance. However, in many construction projects and the results in this paper show that the inadequate quality of coating, rough handling and sunlight or UV exposure of FBE-coated rebars at sites can lead to scratches and microcracks of epoxy coating, which in turn can lead to premature corrosion. Also, the currently adopted specifications are inadequate to ensure desired corrosion resistance of FBE-coated rebars in concrete. The recommendations on making the specifications more stringent and additional erformance indicators presented in this paper can be incorporated in ASTM A775 and will help engineers to evaluate the properties of FBE coating and FBE-coated steels in a better way and ensure the desired corrosion resistance and service life.
Read the Original
This page is a summary of: Performance indicators and specifications for fusion-bonded-epoxy(FBE)-coated steel rebars in concrete exposed to chlorides, Sustainable and Resilient Infrastructure, January 2021, Taylor & Francis,
DOI: 10.1080/23789689.2020.1871539.
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