Experimental and Numerical Assessment of the Behavior of Geogrid-Reinforced Concrete and Its Application in Concrete Overlays
Publication: Journal of Materials in Civil Engineering
Volume 30, Issue 12
Abstract
Limited research exists on the benefits of using geogrids to reinforce portland cement concrete structural and nonstructural members. Concrete pavement overlay is one application in which the use of geogrids can potentially enhance performance and in which the use of reinforcing steel bars is subject to various constraints and limitations. Preliminary research findings have shown that the inclusion of geogrids in portland cement concrete leads to a definitive improvement in postcracking behavior in terms of ductility, load capacity, and crack propagation control. Through a rigorous experimental program, this study aimed to verify and further enhance the current knowledge regarding the behavior of geogrid-reinforced concrete (GRC) elements compared to that of plain concrete and steel-reinforced elements. The findings were used in characterizing the behavior of GRC and applying it to a finite-element model developed using ADINA software. The model was then used to predict the behavior of a geogrid-reinforced concrete overlay and compare it to that of a conventional plain concrete overlay over a given flexible pavement structure.
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Acknowledgments
The authors would like to thank the American University of Beirut’s laboratory staff for their help during testing procedures and the University Research Board at the American University of Beirut for their partial support of this work.
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Information & Authors
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Published In
Journal of Materials in Civil Engineering
Volume 30 • Issue 12 • December 2018
Copyright
©2018 American Society of Civil Engineers.
History
Received: Jan 24, 2018
Accepted: Jun 18, 2018
Published online: Oct 5, 2018
Published in print: Dec 1, 2018
Discussion open until: Mar 5, 2019
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