Rehabilitation of Cracked and Corroded Reinforced Concrete Beams with Fiber-Reinforced Plastic Patches
Publication: Journal of Composites for Construction
Volume 8, Issue 3
Abstract
The behavior under static loading of fiber-reinforced plastic (FRP) retrofitted reinforced concrete beams, possessing a high chloride content and rebar corrosion, was studied both experimentally and analytically. The test beams were characterized as falling into three different groups according to the state of their corrosion damage: (1) natural corrosion, (2) cathodic protection, and (3) accelerated corrosion. The load carrying capacities of the beams, with or without FRP patching, were tested in the laboratory. The experimental results show that the state of corrosion of the steel, the water/cement ratio of the concrete material, and the arrangement and the number of FRP patches all affect the strength as well as the failure mechanisms of retrofitted RC beams. Some simple analytical models and a design concept for retrofitting cracked and corroded RC beams with FRP sheets are also presented and discussed.
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Information
Published In
Journal of Composites for Construction
Volume 8 • Issue 3 • June 2004
Pages: 219 - 228
Copyright
Copyright © 2004 American Society of Civil Engineers.
History
Received: Jan 14, 2000
Accepted: Oct 21, 2002
Published online: May 14, 2004
Published in print: Jun 2004
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