Crack Width Prediction and Control Considering Corrosion and Bond Resistance in Concrete Bridges

For the improved crack control of AASHTO LRFD specifications, a prediction equation and a control equation for the crack width, affected by time-dependent general corrosion has been proposed. The current corrosion problem in concrete bridges is incomplete analytical models for the prediction of the initiation and propagation of corrosion induced crack width as a serviceability limit state. A serviceability limit state of cracking can be affected by a combined effect of bond, slip, cracking, and corrosion on the reinforcing elements. The developed corrosion models and crack width prediction can be used for the design and the maintenance of prestressed and nonprestressed reinforcements by varying time, w/c, cover depth, geometries of the sections. It can also help the rational criteria for existing concrete bridges and the prediction of remaining life of concrete structures.

Language

  • English

Media Info

  • Media Type: CD-ROM
  • Features: Figures; References; Tables;
  • Pagination: 20p
  • Monograph Title: TRB 86th Annual Meeting Compendium of Papers CD-ROM

Subject/Index Terms

Filing Info

  • Accession Number: 01046012
  • Record Type: Publication
  • Report/Paper Numbers: 07-1366
  • Files: TRIS, TRB
  • Created Date: Feb 8 2007 5:57PM