NEW SOLUTION FOR PREDICTION OF CHLORIDE INGRESS IN REINFORCED CONCRETE FLEXURAL MEMBERS

This paper develops a new solution to Fick's second law for the prediction of chloride ingress (CI) in reinforced concrete (RC) members located in a marine environment. The fundamental mechanism of diffusion of chloride ions in concrete is studied. Based on a combination of Knudsen flow and viscous flow, an analytical solution is derived for the prediction of CI in concrete flexural members and is verified by experimental results. CI in concrete under different cracking conditions is also examined and compared with that predicted by the derived solution. One advantage of the derived solution is that the crack width, a basic design parameter of RC structures, is included in the prediction of CI in concrete. In addition, the derivation of the solution does not resort to any unproven assumptions.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/13846872
• Corporate Authors:

  American Concrete Institute (ACI)

  38800 Country Club Drive
  Farmington Hills, MI  United States  48331
• Authors:
  • Li, C Q
  • ZHENG, J J
  • Shao, L
• Publication Date: 2003-7

Language

• English

Media Info

• Features: Figures; Photos; References;
• Pagination: p. 319-325
• Serial:
  • ACI Materials Journal
  • Volume: 100
  • Issue Number: 4
  • Publisher: American Concrete Institute (ACI)
  • ISSN: 0889-325X
  • Serial URL: https://www.concrete.org/publications/acimaterialsjournal.aspx

Subject/Index Terms

• TRT Terms: Chlorides; Concrete structures; Corrosion; Corrosive materials; Flexural strength; Reinforced concrete; Structural deterioration and defects; Structural members
• Uncontrolled Terms: Chloride ingress; Marine environment
• Subject Areas: Bridges and other structures; Design; Highways; Materials; I24: Design of Bridges and Retaining Walls; I32: Concrete;

Filing Info

• Accession Number: 00961654
• Record Type: Publication
• Files: TRIS
• Created Date: Aug 10 2003 12:00AM