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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/).
(a) Relationship between compressive strength in cubic and cylindrical specimens at 28 and 91 days (PC 65); (b) Relationship between compressive strength in cubic and cylindrical specimens at 28 and 91 days (PC 45).