FIELD EVALUATION OF CONCRETE BRIDGE DECKS REINFORCED WITH EPOXY-COATED STEEL IN INDIANA

A field evaluation of a representative sample of six bridges in terms of traffic and environmental and salt exposure conditions was conducted to assess the in-service condition of concrete bridge decks reinforced with epoxy-coated steel in Indiana. The field condition assessment included (a) identification of any delaminated and spalled areas; (b) detailed mapping of the observed cracking; (c) identification of the concrete cover and the underlying reinforcement; (d) core sampling with and without reinforcement to determine the compressive strength and unit weight; and (e) concrete powder sampling to determine chloride concentration at various depths. No signs of steel corrosion were found in the bar samples extracted from cores in the six bridges evaluated. The chloride concentration levels at the level of the reinforcement for all but two of the bridges were well above the commonly accepted threshold value at the level of the reinforcement. Evaluaton of the field data revealed that, to date, the combination of adequate concrete cover and epoxy coating has provided a good corrosion protection system in Indiana. The sample included the first bridge in Indiana on which epoxy-coated reinforcement was used (1976).

• Record URL:
  • http://onlinepubs.trb.org/Onlinepubs/trr/1995/1476/1476-017.pdf
• Record URL:
  • https://scholar.google.com/scholar_lookup?title=FIELD+EVALUATION+OF+CONCRETE+BRIDGE+DECKS+REINFORCED+WITH+EPOXY-COATED+STEEL+IN+INDIANA&author=H.+Hasan&author=J.+Ramirez&author=D.+Cleary&publication_year=1995
• Availability:
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• Supplemental Notes:
  • This paper appears in Transportation Research Record No. 1476, Steel, Concrete, and Wood Bridges. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
• Authors:
  • Hasan, Hendy O
  • Ramirez, Julio A
  • Cleary, Douglas B
• Publication Date: 1995

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 155-161
• Monograph Title: Steel, concrete, and wood bridges
• Serial:
  • Transportation Research Record
  • Issue Number: 1476
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Bridge decks; Chloride content; Compressive strength; Concrete; Condition surveys; Core samples; Corrosion; Delamination; Epoxy coatings; Field studies; Fracture mechanics; Material reinforcement; Spalling; Weight
• Geographic Terms: Indiana
• Old TRIS Terms: Core analysis; Unit weight
• Subject Areas: Bridges and other structures; Design; Highways; I24: Design of Bridges and Retaining Walls;

Filing Info

• Accession Number: 00711803
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Sep 25 1995 12:00AM