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    Effect of Damaged Area on Service Life of Epoxy-Coated Reinforcement

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    SL Report 22-1.pdf (435.4Kb)
    Issue Date
    2022-05
    Author
    O’Reilly, Matt
    Publisher
    University of Kansas Center for Research, Inc.
    Type
    Technical Report
    Is part of series
    SL Report;22-1
    Published Version
    https://iri.ku.edu/reports
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    Abstract
    This report presents a literature review of the effect of coating damage on the corrosion resistance and service life of epoxy-coated reinforcement (ECR). Epoxy coatings obtain damage during fabrication, handling, and placement of reinforcement, as well as during casting of concrete. The body of literature was searched for the impact of the extent of this damage on the chloride threshold of ECR, as well as the corrosion rate after initiation of corrosion and the time from corrosion initiation to repair of the structure. An example service life calculation for reinforced concrete bridge decks subject to deicing chemicals is presented. Numerous studies show that an increase in damaged area adversely impacts the corrosion resistance of ECR, both in terms of corrosion initiation and corrosion rate after initiation. Conversely, proper handling and inspection to patch regions of damage can greatly increase the service life of ECR. The theoretical service life calculation indicates a 100-year design life is possible even in the presence of minor damage.
    URI
    http://hdl.handle.net/1808/32759
    Collections
    • Infrastructure Research Institute Scholarly Works [324]
    Citation
    O’Reilly, M., “Effect of Damaged Area on Service Life of Epoxy-Coated Reinforcement,” SL Report 22-1, The University of Kansas Center for Research, Inc., Lawrence, KS, May 2022, 11 pp.

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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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