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. 2019 May 24;12(10):1697. doi: 10.3390/ma12101697

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© 2019 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Application of acoustic emission (AE) in the split tensile test to monitor the failure of the specimen. (a) Fly-ash replacement 0%; (b) Fly-ash replacement 10%; (c) Fly-ash replacement 20%; (d) Fly-ash replacement 30%.

Application of acoustic emission (AE) in the split tensile test to monitor the failure of the specimen. (a) Fly-ash replacement 0%; (b) Fly-ash replacement 10%; (c) Fly-ash replacement 20%; (d) Fly-ash replacement 30%.