Tensile Capacity of GFRP Postinstalled Adhesive Anchors in Concrete
Publication: Journal of Composites for Construction
Volume 12, Issue 6
Abstract
This paper presents the results of an experimental study conducted on the pullout capacity of glass fiber reinforced polymer (GFRP) postinstalled adhesive anchors embedded in concrete. A total of 90 adhesive anchors were installed using sand-coated GFRP reinforcing bars and tested under monotonic tension loading in accordance with ASTM E-488-96 in 1996. The test parameters were: (1) the GFRP bar diameter (25.4, 15.9, and ); (2) the embedment depth (5, 10, and 15 where =bar diameter); (3) the adhesive type (epoxy-based and cement-based adhesives); and (4) installation conditions (wet or partially submerged and dry holes). The tested GFRP adhesive anchors were installed in concrete slabs measuring long, wide, and deep. The test specimens were kept outdoors for to be subjected to real environmental conditions including freeze-thaw cycles, wet and dry cycles, and temperature variations. The experimental results indicated the adequate performance of GFRP adhesive anchors installed in wet or partially submerged condition using epoxy-based adhesive. Similar behavior was observed for those installed with cement-based adhesive in dry conditions as well. The capacity of the GFRP bars installed with both adhesive types was achieved at an embedment depth ranging from 10 to 15 .
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Acknowledgments
The writers wish to express their gratitude and sincere appreciation to the Natural Sciences and Engineering Research Council of Canada (NSERC),NSERC Pultrall Inc. (Thetford Mines, Quebec, Canada), and Hilti Inc., for financing this research work. The writers would like to thank the technical staff in the structural laboratory at the University of Sherbrooke for their assistance in fabricating and testing the specimens.
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Information & Authors
Information
Published In
Journal of Composites for Construction
Volume 12 • Issue 6 • December 2008
Pages: 596 - 607
Copyright
© 2008 ASCE.
History
Received: Jan 29, 2007
Accepted: Nov 28, 2007
Published online: Dec 1, 2008
Published in print: Dec 2008
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