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Published in:
2011 | OriginalPaper | Chapter
Effect of CFRP and GFRP Confinement on Behavior of Square Lightweight Concrete Specimens
Authors : A. Vatani Oskouei, M. Pirgholi Kivi, S. Taghipour Boroujeni
Published in: Advances in FRP Composites in Civil Engineering
Publisher: Springer Berlin Heidelberg
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For improving of the structural properties of lightweight concrete, confinement by Fiber Reinforced Polymer (FRP) can be used. Effect of Fiber Reinforced Polymer on confined lightweight concrete elements is one of the most important research fields. In this study, behavior of confined and unconfined lightweight concrete specimens under uniaxial loading has been discussed. For decreasing of stress concentration and to prevent the fiber from being folded, corners of specimens were chamfered to a radius of 5 to 25 mm. The Carbon Fiber Reinforced Polymer (CFRP) and Glass Fiber Reinforced Polymer (GFRP) were used to confine lightweight concrete specimens. The stress-strain curve of specimens is compared. The result was shown that, Confinement of specimens with CFRP has more ultimate strength than the specimens confined with GFRP.