Central Peeling Failure Behavior of Polymer Cement Mortar Retrofitting of Reinforced Concrete Beams
Publication: Journal of Materials in Civil Engineering
Volume 17, Issue 2
Abstract
Polymer cement mortar (PCM) retrofitting is one of the largely used strengthening methods for repairing fatigue deteriorated highway bridge slabs in Japan. In this method, reinforcing bars are arranged underneath the lower surface of the slab and polymer cement mortar is sprayed onto them. Debonding of the PCM overlay is one of the major causes leading to failure of the repaired slabs. This paper mainly discusses this failure mechanism, its initiation, and suggests a method for quantitative analysis of the failure behavior. The stress transfer mechanism was measured using the strain distribution in the strengthening bars and a relationship for the bonding strength was obtained. Hence the relationship for the peeling load was obtained.
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References
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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 17 • Issue 2 • April 2005
Pages: 126 - 136
Copyright
© 2005 ASCE.
History
Received: Jan 2, 2003
Accepted: Sep 20, 2004
Published online: Apr 1, 2005
Published in print: Apr 2005
Notes
Note. Associate Editor: Houssam A. Toutanji
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