LABORATORY CORROSION TESTS OF GALVANIZED STEEL IN CONCRETE

Concrete test specimens containing galvanized and black reinforcing steel were partially immersed in saturated salt solution. The results were that (a) corrosion began at about the same time for both the galvanized and black (mild) steel exposed in the same concrete system (b) the greater the thickness of zinc was, the earlier concrete cracking occurred; and (c) in concrete of high quality, galvanized steel caused cracking earlier than black steel. Observations indicate that galvanizing is either inefficient or ineffective in preventing rusting of underlying steel in concrete. Most significant in postponing concrete cracking caused by corrosion of black or galvanized steel was the cement factor. There does not appear to be a half-cell potential value per se that discloses the corrosion activity of galvanized steel in concrete. /Author/

• Record URL:
  http://onlinepubs.trb.org/Onlinepubs/trr/1976/604/604-005.pdf
• Summary URL:
  http://scholar.google.com/scholar_lookup?title=LABORATORY+CORROSION+TESTS+OF+GALVANIZED+STEEL+IN+CONCRETE&author=G.+Hill&author=D.+Spellman&author=R.+Stratfull&publication_year=1976
• Availability:
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• Supplemental Notes:
  • Publication of this paper sponsored by Committee on Corrosion. 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:
  • Hill, George A
  • Spellman, D L
  • Stratfull, R F
• Discussers:
  • Tonini, Daryl E
  • Cook, Albert R
  • Cornet, I
• Publication Date: 1976

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: pp 25-37
• Monograph Title: Bridge decks: corrosion, cathodic protection, and pavement seals
• Serial:
  • Transportation Research Record
  • Issue Number: 604
  • Publisher: Transportation Research Board
  • ISSN: 0361-1981

Subject/Index Terms

• TRT Terms: Cement factor; Concrete; Corrosion tests; Cracking; Galvanizing; Laboratory tests; Reinforced concrete; Reinforcing steel; Rusting; Sodium chloride; Sodium chloride; Zinc
• Uncontrolled Terms: Concrete cracking
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00156022
• Record Type: Publication
• ISBN: 030902577X
• Files: TRIS, TRB
• Created Date: Aug 4 1977 12:00AM