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. 2021 Aug 8;14(16):4441. doi: 10.3390/ma14164441

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© 2021 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 (https://creativecommons.org/licenses/by/4.0/).

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An example of a profile line (a) separated out on the surface of a mortar sample after 7 days of maturing with aluminum nanoxide (D = 1.22) and its waviness profile (b) and roughness profile (c) (D = 1.21).

An example of a profile line (a) separated out on the surface of a mortar sample after 7 days of maturing with aluminum nanoxide (D = 1.22) and its waviness profile (b) and roughness profile (c) (D = 1.21).