COMPARING CORROSION MEASUREMENT METHODS TO ASSESS THE CORROSION ACTIVITY OF LABORATORY OPC AND HPC CONCRETE SPECIMENS

The corrosion activity level is used by most highway agencies as the main criterion to determine the proper time and method for bridge deck repair. The corrosion of reinforcing steels in concrete is the main reason for the deterioration of bridge decks. Thus, monitoring the corrosion rate of a repaired deck could be used to evaluate the effectiveness of different repair methods. This article reports on a laboratory study that was conducted to estimate the corrosion activity of a reinforcing steel embedded in two types of concrete (ordinary and high-performance, OPC and HPC, respectively), using different corrosion measurement methods. The study used 104 reinforced concrete cylinders that were conditioned and tested with four common corrosion testing techniques. Results indicated that Tafel plot (TP), linear polarization resistance, half-cell potential (HCP), and chloride content methods would assess the same level of corrosion activity in only 24% of specimens.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00088846
• Corporate Authors:

  Elsevier

  The Boulevard, Langford Lane
  Kidlington, Oxford  United Kingdom  OX5 1GB
• Authors:
  • Soleymani, H R
  • Ismail, M E
• Publication Date: 2004-11

Language

• English

Media Info

• Features: Figures; References; Tables;
• Pagination: p. 2037-2044
• Serial:
  • Cement and Concrete Research
  • Volume: 34
  • Issue Number: 11
  • Publisher: Elsevier
  • ISSN: 0008-8846
  • Serial URL: http://www.sciencedirect.com/science/journal/00088846

Subject/Index Terms

• TRT Terms: Bridge decks; Chloride content; Concrete; Corrosion; Deterioration; Electrochemical processes; High performance concrete; Polarization; Reinforcing steel
• Uncontrolled Terms: Half-cell potential; Tafel plot
• Subject Areas: Highways; Materials; I32: Concrete;

Filing Info

• Accession Number: 00986436
• Record Type: Publication
• Files: TRIS
• Created Date: Feb 8 2005 12:00AM