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. 2014 Feb 28;7(3):1640–1651. doi: 10.3390/ma7031640

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© 2014 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 license (http://creativecommons.org/licenses/by/3.0/).

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Figure 1. — (A) Bending strength and (B) compressive strength of mortars with different dosages of CNT tested at 7 and 28 days curing time. The hash-marked area represents the confidence interval for the average value of the 28-days reference mortar without CNT, with a confidence level of 95% according to UNE 66040:2003 [29].