Characterization of Corrosion Resistant Reinforcement by Accelerated Testing

During the past several years, increased emphasis has been placed upon corrosion resistant alloys such as stainless steels for construction of reinforced concrete bridges exposed to chlorides. However, because there is a general absence of long-term service data for such materials in this application, selection must be based upon results from accelerated testing. As a step towards developing the necessary correlations between short and long-term results, wet-dry exposures and cyclic potentiodynamic polarization (CPP) scans were performed on various corrosion resistant reinforcements. In the former case (wet-dry exposures), corrosion rate was calculated from both polarization resistance and weight loss measurements. For the latter (CPP scans), corrosion resistance was gauged in terms of the critical pitting potential. Results from preliminary experiments have been evaluated, and ultimately these will be compared with findings from ongoing long-term test yard exposure of concrete slabs fabricated with these same reinforcements.

• Corporate Authors:

  National Concrete Bridge Council

  Portland Cement Association, 5420 Old Orchard Road
  Skokie, IL  United States  60077-1083
• Authors:
  • Hartt, William
  • Lysogorski, Diane K
  • Leroux, Virginie
• Conference:
  • The 2004 Concrete Bridge Conference
  • Location: Charlotte NC, United States
  • Date: 2004-5-17 to 2004-5-18
• Publication Date: 2004

Language

• English

Media Info

• Media Type: CD-ROM
• Features: Figures; References;
• Pagination: 12p
• Monograph Title: Building a New Generation of Bridges

Subject/Index Terms

• TRT Terms: Accelerated tests; Chlorides; Concrete bridges; Corrosion protection; Corrosion resistance; Corrosion resistant steel; Cyclic tests; Material reinforcement; Polarization; Reinforced concrete bridges; Stainless steel
• Uncontrolled Terms: Wet dry cycles
• Subject Areas: Bridges and other structures; Design; Highways; Materials; I24: Design of Bridges and Retaining Walls; I32: Concrete;

Filing Info

• Accession Number: 01036158
• Record Type: Publication
• Files: TRIS
• Created Date: Oct 27 2006 8:14AM