Material Classification and Composite Elastic Modulus of Hybrid PVA Fiber Ferrocement
Publication: Journal of Materials in Civil Engineering
Volume 28, Issue 9
Abstract
Strain-hardening material properties of cementitious composites have been achieved by the hybridization of fibers in the matrix. The modulus of elasticity of thin ferrocement composites depends on the elastic modulus of the cement mortar and some factors pertaining to the difference in the elastic modulus of the mesh and mortar. This study presents an experimental and analytical investigation aimed at determining the modulus of elasticity of hybrid polyvinyl alcohol (PVA) ferrocement (HFF). The study had two stages: the first was to determine the elastic modulus of hybrid fiber cementitious (HFC) composites, and the second was to determine the elastic modulus of HFF panels based on flexural tests. An analytical calculation was conducted using the data obtained from a standard compression test, nanoindentation test, and finite element (FE) analysis. The nanoindentation of a representative volume element (RVE) and the transversely isotropic material behavior using FE modeling of an RVE were compared and evaluated. The calculated composite elastic modulus is in good agreement with the elastic modulus obtained from the flexural tests and the FE-model.
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Acknowledgments
This research was carried out at the laboratories of the Civil Engineering Department at Curtin University. The authors also appreciate the Department of Physics for supporting their use of that department’s scanning electron microscope machine. The authors would also like to express their sincere gratitude to Hyuk Lee for his support during the nanoindentation analysis. The authors gratefully acknowledge the anonymous reviewers for their critical review of an earlier version of the manuscript.
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Published In
Journal of Materials in Civil Engineering
Volume 28 • Issue 9 • September 2016
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Apr 27, 2015
Accepted: Dec 31, 2015
Published online: Mar 29, 2016
Discussion open until: Aug 29, 2016
Published in print: Sep 1, 2016
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