DEPASSIVATION TIME OF STEEL REINFORCEMENT IN A CHLORIDE ENVIRONMENT - A ONE-DIMENSIONAL SOLUTION

A one-dimensional analysis was developed to study reinforcement corrosion based on the physical model outlined by Bazant. Four mass conservation equations corresponding to the diffusion of water, oxygen, chloride, and ferrous hydroxide were simultaneously solved to identify critical factors that influence the depassivation of steel reinforcement in chloride environments. Diffusivity of chloride was found to be a most important parameter controlling depassivation, which constitutes the first step in the reinforcement corrosion phenomenon. (Author/TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00109312
• Corporate Authors:

  National Association of Corrosion Engineers

  Box 218340
  Houston, TX  United States  77218
• Authors:
  • Subramanian, E V
  • Wheat, H G
• Publication Date: 1989-1

Media Info

• Pagination: p. 43-8
• Serial:
  • CORROSION
  • Volume: 45
  • Issue Number: 1
  • Publisher: NACE International
  • ISSN: 0010-9312

Subject/Index Terms

• TRT Terms: Corrosion; Halides; Hydroxides; Material reinforcement; Mathematical models; Oxygen; Water
• ITRD Terms: 5252: Corrosion; 7314: Halide; 7354: Hydroxide; 6473: Mathematical model; 7108: Oxygen; 3471: Reinforcement (in mater); 4542: Steel; 4355: Water
• Subject Areas: Geotechnology; Highways; Materials;

Filing Info

• Accession Number: 00493162
• Record Type: Publication
• Source Agency: Transport Research Laboratory
• Files: ITRD, TRIS
• Created Date: May 31 1990 12:00AM