Analytical Model for Corrosion-Induced Crack Width in Reinforced Concrete Structures

Corrosion-induced crack width is used for predicting the serviceability and need for rehabilitation of corrosion-affected reinforced concrete (RC) structures. This article reports on a study undertaken to derive an analytical model for corrosion-induced crack width based on the concept of smeared cracks. The authors note that this model is directly related to critical factors that affect the corrosion-induced concrete cracking, including corrosion rate, the concrete geometry, and property. They report on a parametric study that was undertaken to quantify the effect of these factors on cracking development. This study showed that corrosion rate, as represented by corrosion current density, is the most important single factor that affects both the time to surface cracking and the growth of crack width. The authors conclude that their model can predict corrosion-induced crack width with reasonable accuracy and thus can be a useful tool for decision-making in regard to the serviceability of corroded concrete structures.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/oclc/13846957
• Authors:
  • Li, Chun Qing
  • Melchers, Robert E
  • Zheng, Jian-Jun
• Publication Date: 2006-7

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 479-487
• Serial:
  • ACI Structural Journal
  • Volume: 103
  • Issue Number: 4
  • Publisher: American Concrete Institute (ACI)
  • ISSN: 0889-3241
  • Serial URL: http://www.concrete.org/PUBS/JOURNALS/SJHOME.ASP

Subject/Index Terms

• TRT Terms: Corrosion; Cracking; Fracture mechanics; Material reinforcement; Mathematical models; Rehabilitation; Reinforced concrete; Serviceability
• Uncontrolled Terms: Crack width; Surface cracking
• Subject Areas: Bridges and other structures; Design; Highways; Materials; I24: Design of Bridges and Retaining Walls; I32: Concrete;

Filing Info

• Accession Number: 01037353
• Record Type: Publication
• Files: TRIS
• Created Date: Nov 28 2006 11:31AM