Framework for Durability-Based Design for Concrete-Steel Bond against Corrosion
Publication: Journal of Materials in Civil Engineering
Volume 20, Issue 10
Abstract
The current understanding of the mechanics of bond resistance at the interface between concrete and plain and deformed steel bars is reviewed briefly along with the influence of corrosion on the phenomenon. Some of the available research on analytical models in both corroded and uncorroded steel bars is also reviewed. The influence of some of the significant parameters influencing the behavior of corroded bars, such as the concrete strength, crack width, extent of rebar corrosion (measured by mass loss), concrete cover thickness, bar diameter, and the loss of rebar lugs is reviewed. In addition, a preliminary framework is presented for design of reinforced concrete for durability against deterioration of bond due to steel rebar corrosion. A framework for design of structural concrete for durability against deterioration of bond at the steel-concrete interface due to corrosion of rebars is proposed. The technical note also stresses the need for more research on the above and other parameters influencing the deterioration of bond due to corrosion, before establishing a reliable design method using a semiprobabilistic approach in the design of structural concrete for other phenomena.
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Acknowledgments
The writers would like to acknowledge the NSERC Strategic and the Operating Research Grants under which this and other related research programs were undertaken. The contributions of Natural Resources Canada/CANMET (Dr. V. M. Malhotra) and Hydro-Quebec (IREQ, Dr. J. Mirza) are gratefully acknowledged.
References
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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 20 • Issue 10 • October 2008
Pages: 678 - 681
Copyright
© 2008 ASCE.
History
Received: Feb 1, 2005
Accepted: Dec 28, 2006
Published online: Oct 1, 2008
Published in print: Oct 2008
Notes
Note. Associate Editor: Carl Liu
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