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. 2016 Dec 9;50(2):108. doi: 10.1617/s11527-016-0976-4

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© The Author(s) 2016

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 2 — Layering and testing direction arrangements for parallel and perpendicular loading with direction of compaction and preferred plane of orientation of particles indicated by the red and black axis respectively. (Color figure online)