Compressive strength and microstructure of carbon nanotubes-fly ash cement composites

In this work, carbon nanotubes of 0.5 and 1% by weight were added for the first time in a fly ash cement system to produce carbon nanotubes-fly ash composites in the form of pastes and mortars. Compressive strengths of the composites were then investigated. It was found that the use of carbon nanotu...

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Main Authors: Arnon Chaipanich, Thanongsak Nochaiya, Watcharapong Wongkeo, Pincha Torkittikul
Format: Journal
Published: 2018
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http://cmuir.cmu.ac.th/jspui/handle/6653943832/50839
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Institution: Chiang Mai University
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spelling th-cmuir.6653943832-508392018-09-04T04:53:42Z Compressive strength and microstructure of carbon nanotubes-fly ash cement composites Arnon Chaipanich Thanongsak Nochaiya Watcharapong Wongkeo Pincha Torkittikul Engineering Materials Science Physics and Astronomy In this work, carbon nanotubes of 0.5 and 1% by weight were added for the first time in a fly ash cement system to produce carbon nanotubes-fly ash composites in the form of pastes and mortars. Compressive strengths of the composites were then investigated. It was found that the use of carbon nanotubes resulted in higher strength of fly ash mortars. The highest strength obtained for 20% fly ash cement mortars was found at 1% carbon nanotubes where the compressive strength at 28 days was 51.8 MPa. This benefit can clearly be seen in fly ash cement with fly ash of 20% where the importance of the addition of carbon nanotubes means that the relative strength to that of Portland cement became almost 100% at 28 days. In addition, scanning electron micrographs also showed that good interaction between carbon nanotubes and the fly ash cement matrix is seen with carbon nanotubes acting as a filler resulting in a denser microstructure and higher strength when compared to the reference fly ash mix without CNTs. © 2009 Elsevier B.V. All rights reserved. 2018-09-04T04:46:26Z 2018-09-04T04:46:26Z 2010-02-15 Journal 09215093 2-s2.0-72549096717 10.1016/j.msea.2009.09.039 https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=72549096717&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/50839
institution Chiang Mai University
building Chiang Mai University Library
country Thailand
collection CMU Intellectual Repository
topic Engineering
Materials Science
Physics and Astronomy
spellingShingle Engineering
Materials Science
Physics and Astronomy
Arnon Chaipanich
Thanongsak Nochaiya
Watcharapong Wongkeo
Pincha Torkittikul
Compressive strength and microstructure of carbon nanotubes-fly ash cement composites
description In this work, carbon nanotubes of 0.5 and 1% by weight were added for the first time in a fly ash cement system to produce carbon nanotubes-fly ash composites in the form of pastes and mortars. Compressive strengths of the composites were then investigated. It was found that the use of carbon nanotubes resulted in higher strength of fly ash mortars. The highest strength obtained for 20% fly ash cement mortars was found at 1% carbon nanotubes where the compressive strength at 28 days was 51.8 MPa. This benefit can clearly be seen in fly ash cement with fly ash of 20% where the importance of the addition of carbon nanotubes means that the relative strength to that of Portland cement became almost 100% at 28 days. In addition, scanning electron micrographs also showed that good interaction between carbon nanotubes and the fly ash cement matrix is seen with carbon nanotubes acting as a filler resulting in a denser microstructure and higher strength when compared to the reference fly ash mix without CNTs. © 2009 Elsevier B.V. All rights reserved.
format Journal
author Arnon Chaipanich
Thanongsak Nochaiya
Watcharapong Wongkeo
Pincha Torkittikul
author_facet Arnon Chaipanich
Thanongsak Nochaiya
Watcharapong Wongkeo
Pincha Torkittikul
author_sort Arnon Chaipanich
title Compressive strength and microstructure of carbon nanotubes-fly ash cement composites
title_short Compressive strength and microstructure of carbon nanotubes-fly ash cement composites
title_full Compressive strength and microstructure of carbon nanotubes-fly ash cement composites
title_fullStr Compressive strength and microstructure of carbon nanotubes-fly ash cement composites
title_full_unstemmed Compressive strength and microstructure of carbon nanotubes-fly ash cement composites
title_sort compressive strength and microstructure of carbon nanotubes-fly ash cement composites
publishDate 2018
url https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=72549096717&origin=inward
http://cmuir.cmu.ac.th/jspui/handle/6653943832/50839
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