Influence of Surface Morphology of Fibers on the Tensile and Flexural Ductility of Polypropylene-Reinforced Cementitious Composites
Publication: Journal of Materials in Civil Engineering
Volume 32, Issue 4
Abstract
The surface morphology of fibers influence the global performance of fiber-reinforced cementitious composites. Commercially available polypropylene fibers may be coated with polyglycol ester to facilitate the fiber production process; this coating cannot be detected easily. In this study, it was demonstrated that, although the coating does not change the mechanical strength and elongation at break of a single polypropylene fiber, the interface bonding characteristics of polypropylene fibers with the cement matrix are modified by the coating; this leads to changes in global mechanical performance (which are characterized by the tensile and flexural response) of the composite.
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Acknowledgments
The authors acknowledge the Future of Cities project (Project code: ECI) under the Ministry of Human Research Development for funding this research. The authors would like to give thanks for the support of the structural and material testing laboratory staffs in the Civil Engineering Department and the Material Science Centre at Indian Institute of Technology (IIT) Kharagpur in conducting the different tests.
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Published In
Journal of Materials in Civil Engineering
Volume 32 • Issue 4 • April 2020
Copyright
©2020 American Society of Civil Engineers.
History
Received: Nov 30, 2018
Accepted: Jul 30, 2019
Published online: Jan 27, 2020
Published in print: Apr 1, 2020
Discussion open until: Jun 27, 2020
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