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Accelerated laboratory and field investigations of corrosion inhibiting systems for concrete bridges

From National Research Council Canada

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Affiliation
  1. National Research Council of Canada. NRC Institute for Research in Construction
FormatText, Article
ConferenceNACE Northern Area Eastern Conference 2007: 24 September 2007, Ottawa, Ontario
SubjectBridges
Abstract
Nine commercially available corrosion-inhibiting systems including concrete admixtures, reinforcing steel coatings, and/or concrete surface coatings/sealers for use in concrete structures, were evaluated in electrochemical cells and on bridge barrier walls by accelerated methods and actual field conditions. The laboratory investigation included the assessment of the effectiveness of corrosion inhibiting concrete admixtures and rebar coatings in delaying or reducing steel corrosion by measurements of chloride thresholds and corrosion rates. The field evaluation consisted of the measurements of half-cell potential and corrosion rate of the steel reinforcement of concrete barrier walls, which had specially designed rebar ladders embedded in the concrete with thin cover depths, in order to reduce the time needed for chlorides to reach the surface of the reinforcing steel.
Publication date
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  • NACE Northern Area Eastern Conference 2007 [Proceedings] (24 September 2007): 1–14.
LanguageEnglish
Peer reviewedYes
NRC numberNRCC 50025
NRC-IRC-18750
NPARC number20378023
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Record identifier8528e8ec-d4c2-43fd-9d7e-0dc11fb55130
Record created2012-07-24
Record modified2020-05-10
Date modified: