Compressive Behavior of Engineered Cementitious Composites under High Strain-Rate Loading
Publication: Journal of Materials in Civil Engineering
Volume 29, Issue 4
Abstract
Engineered cementitious composite (ECC) is a cement-based material, commonly mixed with polyvinyl alcohol (PVA) fiber or polyethylene (PE) fiber as reinforcing materials. This paper reports the test results of ECC materials under high strain-rate compression, using a 100-mm diameter split Hopkinson pressure bar (SHPB) device. The stress-strain relationships under different strain rates are obtained and discussed. It is found that both the ultimate strength and the corresponding strain of ECC increase with the augmentation of strain rate, indicating that the compressive behavior of ECC is sensitive to the strain rate. The dynamic increase factors (DIFs) for strength and strain at strength are discussed.
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Acknowledgments
The research reported in this paper was sponsored by the National Key Basic Research Program of China (973-2012CB026200). The experimental tests with the SHPB were conducted at the China MOE Key Laboratory of Building Safety and Energy Efficiency, with help from Mr. Chen, B.S. The analysis of the testing results was funded by the Thousand-Talent National Expert Professorship provided by the Nanjing Tech University.
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Published In
Journal of Materials in Civil Engineering
Volume 29 • Issue 4 • April 2017
Copyright
©2016 American Society of Civil Engineers.
History
Received: Apr 13, 2016
Accepted: Aug 9, 2016
Published online: Oct 26, 2016
Discussion open until: Mar 26, 2017
Published in print: Apr 1, 2017
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