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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Main Authors: María del Carmen Camacho, Oscar Galao, Francisco Javier Baeza, Emilio Zornoza, Pedro Garcés
Format: Article
Language:English
Published: MDPI AG 2014-02-01
Series:Materials
Subjects:
CNT
Online Access:http://www.mdpi.com/1996-1944/7/3/1640
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spelling doaj-f3920f1937a4428da78080652a2c43472020-11-24T23:04:18ZengMDPI AGMaterials1996-19442014-02-01731640165110.3390/ma7031640ma7031640Mechanical Properties and Durability of CNT Cement CompositesMaría del Carmen Camacho0Oscar Galao1Francisco Javier Baeza2Emilio Zornoza3Pedro Garcés4Civil Engineering Department, Universidad de Alicante, Ctra San Vicente s/n, San Vicente del Raspeig 03690, SpainCivil Engineering Department, Universidad de Alicante, Ctra San Vicente s/n, San Vicente del Raspeig 03690, SpainCivil Engineering Department, Universidad de Alicante, Ctra San Vicente s/n, San Vicente del Raspeig 03690, SpainCivil Engineering Department, Universidad de Alicante, Ctra San Vicente s/n, San Vicente del Raspeig 03690, SpainCivil Engineering Department, Universidad de Alicante, Ctra San Vicente s/n, San Vicente del Raspeig 03690, SpainIn 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.http://www.mdpi.com/1996-1944/7/3/1640CNTmultifunctional compositescementdurabilitymechanical properties
collection DOAJ
language English
format Article
sources DOAJ
author María del Carmen Camacho
Oscar Galao
Francisco Javier Baeza
Emilio Zornoza
Pedro Garcés
spellingShingle María del Carmen Camacho
Oscar Galao
Francisco Javier Baeza
Emilio Zornoza
Pedro Garcés
Mechanical Properties and Durability of CNT Cement Composites
Materials
CNT
multifunctional composites
cement
durability
mechanical properties
author_facet María del Carmen Camacho
Oscar Galao
Francisco Javier Baeza
Emilio Zornoza
Pedro Garcés
author_sort María del Carmen Camacho
title Mechanical Properties and Durability of CNT Cement Composites
title_short 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_sort mechanical properties and durability of cnt cement composites
publisher MDPI AG
series Materials
issn 1996-1944
publishDate 2014-02-01
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.
topic CNT
multifunctional composites
cement
durability
mechanical properties
url http://www.mdpi.com/1996-1944/7/3/1640
work_keys_str_mv AT mariadelcarmencamacho mechanicalpropertiesanddurabilityofcntcementcomposites
AT oscargalao mechanicalpropertiesanddurabilityofcntcementcomposites
AT franciscojavierbaeza mechanicalpropertiesanddurabilityofcntcementcomposites
AT emiliozornoza mechanicalpropertiesanddurabilityofcntcementcomposites
AT pedrogarces mechanicalpropertiesanddurabilityofcntcementcomposites
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