Flexural Strengthening of Two-Way RC Slabs with Textile-Reinforced Mortar: Experimental Investigation and Design Equations
Publication: Journal of Composites for Construction
Volume 21, Issue 1
Abstract
The application of textile-reinforced mortar (TRM) as a means of increasing the flexural capacity of two-way reinforced concrete (RC) slabs is experimentally investigated in this study. The parameters examined include the number of TRM layers, the strengthening configuration, the textile fibers material (carbon versus glass), and the role of initial cracking in the slab. For this purpose six large-scale RC slabs were built and tested to failure under monotonic loading distributed at four points. It is concluded that TRM increases substantially the precracking stiffness, the cracking load, the postcracking stiffness, and eventually the flexural capacity of two-way RC slabs, whereas the strengthening configuration plays an important role in the effectiveness of the technique. Simple design equations that provide good estimation of the experimental flexural moment of resistance are proposed.
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Acknowledgments
The authors wish to thank the students Joshua Spong, Sultan Alotaibi, Saad Raoof, and Zoi Tetta, the lab manager Mike Langford, the chief technician Nigel Rook and the technicians Gary Davies, Sam Cook, and Balbir Loyla, for their assistance in the experimental work. The research described in this paper has been financed by the University of Nottingham through the Dean of Engineering Prize, a scheme for pump priming support for early career academic staff.
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Journal of Composites for Construction
Volume 21 • Issue 1 • February 2017
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This work is made available under the terms of the Creative Commons Attribution 4.0 International license, http://creativecommons.org/licenses/by/4.0/.
History
Received: Nov 24, 2015
Accepted: Mar 9, 2016
Published online: Jun 30, 2016
Discussion open until: Nov 30, 2016
Published in print: Feb 1, 2017
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