Mechanical Properties and Durability of CNT Cement Composites

In the present paper, changes in mechanical properties of Portland cement-based mortars due to the addition of carbon nanotubes (CNT) and corrosion of embedded steel rebars in CNT cement pastes are reported. Bending strength, compression strength, porosity and density of mortars were determined and...

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Autores principales: Camacho, María del Carmen, Galao, Oscar, Baeza, Francisco Javier, Zornoza, Emilio, Garcés, Pedro
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2014
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5453286/
https://www.ncbi.nlm.nih.gov/pubmed/28788536
http://dx.doi.org/10.3390/ma7031640
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author Camacho, María del Carmen
Galao, Oscar
Baeza, Francisco Javier
Zornoza, Emilio
Garcés, Pedro
author_facet Camacho, María del Carmen
Galao, Oscar
Baeza, Francisco Javier
Zornoza, Emilio
Garcés, Pedro
author_sort Camacho, María del Carmen
collection PubMed
description In the present paper, changes in mechanical properties of Portland cement-based mortars due to the addition of carbon nanotubes (CNT) and corrosion of embedded steel rebars in CNT cement pastes are reported. Bending strength, compression strength, porosity and density of mortars were determined and related to the CNT dosages. CNT cement paste specimens were exposed to carbonation and chloride attacks, and results on steel corrosion rate tests were related to CNT dosages. The increase in CNT content implies no significant variations of mechanical properties but higher steel corrosion intensities were observed.
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spelling pubmed-54532862017-07-28 Mechanical Properties and Durability of CNT Cement Composites Camacho, María del Carmen Galao, Oscar Baeza, Francisco Javier Zornoza, Emilio Garcés, Pedro Materials (Basel) Article In the present paper, changes in mechanical properties of Portland cement-based mortars due to the addition of carbon nanotubes (CNT) and corrosion of embedded steel rebars in CNT cement pastes are reported. Bending strength, compression strength, porosity and density of mortars were determined and related to the CNT dosages. CNT cement paste specimens were exposed to carbonation and chloride attacks, and results on steel corrosion rate tests were related to CNT dosages. The increase in CNT content implies no significant variations of mechanical properties but higher steel corrosion intensities were observed. MDPI 2014-02-28 /pmc/articles/PMC5453286/ /pubmed/28788536 http://dx.doi.org/10.3390/ma7031640 Text en © 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/).
spellingShingle Article
Camacho, María del Carmen
Galao, Oscar
Baeza, Francisco Javier
Zornoza, Emilio
Garcés, Pedro
Mechanical Properties and Durability of CNT Cement Composites
title Mechanical Properties and Durability of CNT Cement Composites
title_full Mechanical Properties and Durability of CNT Cement Composites
title_fullStr Mechanical Properties and Durability of CNT Cement Composites
title_full_unstemmed Mechanical Properties and Durability of CNT Cement Composites
title_short Mechanical Properties and Durability of CNT Cement Composites
title_sort mechanical properties and durability of cnt cement composites
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5453286/
https://www.ncbi.nlm.nih.gov/pubmed/28788536
http://dx.doi.org/10.3390/ma7031640
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