High Creep Stress Test of Carbon Fiber–Composite Cable with Generic Field-Made Anchorage
Publication: Journal of Composites for Construction
Volume 21, Issue 5
Abstract
Carbon fiber–reinforced polymer (CFRP) tendons can serve as a viable alternative to steel strands in prestressing applications in which the noncorrosive nature of the strands helps reduce maintenance costs and extend the service life of the structure. An important consideration for CFRP tendons is the prestress level, which is currently limited by prevailing standards. A series of creep stress tests were conducted on carbon fiber–composite cables with generic field-made anchorages using commercially available expansive grout. Specimens withstood 95% of their guaranteed capacity for a period of five months (3,624 h) at a room temperature of 24°C (75°F) without rupture or any sign of distress. The experiments also showed quite an acceptable long-term performance for the generic field-made anchorage. In subsequent residual strength tests, all specimens still exceeded their guaranteed capacity after the extended high creep stress test.
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Acknowledgments
This study was sponsored by the Florida Department of Transportation with Mr. William Potter as project manager. All experiments were conducted at the Titan America Structures and Construction Testing Laboratory of the Florida International University. The views and findings reported here are those of the writers alone, and not necessarily the sponsoring agency.
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Information & Authors
Information
Published In
Journal of Composites for Construction
Volume 21 • Issue 5 • October 2017
Copyright
©2017 American Society of Civil Engineers.
History
Received: Jun 17, 2016
Accepted: Jan 18, 2017
Published online: Mar 28, 2017
Discussion open until: Aug 28, 2017
Published in print: Oct 1, 2017
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