Loading…

The critical role of nanotube shape in cement composites

The growing availability of nanotubes and the increased knowledge about their loading in polymers have prompted the incorporation of nanotubes in cementitious matrices. The effects of loading straight tungsten di-sulfide nanotubes (WS2NT) or waved carbon nanotubes (CNT) in cementitious matrices was...

Full description

Saved in:

Bibliographic Details
Published in:	Cement & concrete composites 2016-08, Vol.71, p.166-174
Main Authors:	Nadiv, Roey, Shtein, Michael, Refaeli, Maor, Peled, Alva, Regev, Oren
Format:	Article
Language:	English
Subjects:	Carbon nanotubes Cement Cements Composite Compressive properties Cracks Fractography Inclusions Low concentrations Mechanical properties Nanostructure Nanotubes
Citations:	Items that this one cites Items that cite this one
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

cited_by	cdi_FETCH-LOGICAL-c384t-5adfcf95f4b81983e8a01a959cfef8b1f9c481f65d71da9e333e497f7a94c26a3
cites	cdi_FETCH-LOGICAL-c384t-5adfcf95f4b81983e8a01a959cfef8b1f9c481f65d71da9e333e497f7a94c26a3
container_end_page	174
container_issue
container_start_page	166
container_title	Cement & concrete composites
container_volume	71
creator	Nadiv, Roey Shtein, Michael Refaeli, Maor Peled, Alva Regev, Oren
description	The growing availability of nanotubes and the increased knowledge about their loading in polymers have prompted the incorporation of nanotubes in cementitious matrices. The effects of loading straight tungsten di-sulfide nanotubes (WS2NT) or waved carbon nanotubes (CNT) in cementitious matrices was explored. Their inclusion in these composites at exceptionally low concentrations (0.063 vol% and 0.15 vol% for WS2NT and CNT, respectively) enhanced the composite’s mechanical properties, including compressive and flexural strengths (25–38%). Thermal analysis and electron microscopy indicated that nanotube incorporation in cementitious matrices also accelerated hydration reaction kinetics. It was shown that straight WS2NTs bridged pores and cracks more effectively than the waved CNTs, which resist crack propagation via an anchoring mechanism. A comparison to representative cement nanocomposite systems shows that nanotubes (aspect ratio≫1), offer better reinforcement efficiencies than particulate nanomaterials, yielding high mechanical properties enhancement at low concentration.
doi_str_mv	10.1016/j.cemconcomp.2016.05.012
format	article
fullrecord	<record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_1825542759</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0958946516301457</els_id><sourcerecordid>1825542759</sourcerecordid><originalsourceid>FETCH-LOGICAL-c384t-5adfcf95f4b81983e8a01a959cfef8b1f9c481f65d71da9e333e497f7a94c26a3</originalsourceid><addsrcrecordid>eNqNkMtKxDAUhoMoOI6-Q5ZuWpMmaZKlDt5AcDOCu5BJT5gMbVOTjODb22EEl7o68PNfOB9CmJKaEtre7GoHg4uji8NUN7NSE1ET2pygBVWSVUyz91O0IFqoSvNWnKOLnHeEkJbLZoHUegvYpVCCsz1OsQccPR7tGMt-Azhv7QQ4jHgegbHgw0rMoUC-RGfe9hmufu4SvT3cr1dP1cvr4_Pq9qVyTPFSCdt557XwfKOoVgyUJdRqoZ0HrzbUa8cV9a3oJO2sBsYYcC29tJq7prVsia6PvVOKH3vIxQwhO-h7O0LcZ0NVIwRvpND_sBIlqdJczlZ1tLoUc07gzZTCYNOXocQcuJqd-eVqDlwNEWbmOkfvjlGYv_4MkEx2AUYHXUjgiuli-LvkGxynhko</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1808718947</pqid></control><display><type>article</type><title>The critical role of nanotube shape in cement composites</title><source>Elsevier</source><creator>Nadiv, Roey ; Shtein, Michael ; Refaeli, Maor ; Peled, Alva ; Regev, Oren</creator><creatorcontrib>Nadiv, Roey ; Shtein, Michael ; Refaeli, Maor ; Peled, Alva ; Regev, Oren</creatorcontrib><description>The growing availability of nanotubes and the increased knowledge about their loading in polymers have prompted the incorporation of nanotubes in cementitious matrices. The effects of loading straight tungsten di-sulfide nanotubes (WS2NT) or waved carbon nanotubes (CNT) in cementitious matrices was explored. Their inclusion in these composites at exceptionally low concentrations (0.063 vol% and 0.15 vol% for WS2NT and CNT, respectively) enhanced the composite’s mechanical properties, including compressive and flexural strengths (25–38%). Thermal analysis and electron microscopy indicated that nanotube incorporation in cementitious matrices also accelerated hydration reaction kinetics. It was shown that straight WS2NTs bridged pores and cracks more effectively than the waved CNTs, which resist crack propagation via an anchoring mechanism. A comparison to representative cement nanocomposite systems shows that nanotubes (aspect ratio≫1), offer better reinforcement efficiencies than particulate nanomaterials, yielding high mechanical properties enhancement at low concentration.</description><identifier>ISSN: 0958-9465</identifier><identifier>EISSN: 1873-393X</identifier><identifier>DOI: 10.1016/j.cemconcomp.2016.05.012</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Carbon nanotubes ; Cement ; Cements ; Composite ; Compressive properties ; Cracks ; Fractography ; Inclusions ; Low concentrations ; Mechanical properties ; Nanostructure ; Nanotubes</subject><ispartof>Cement & concrete composites, 2016-08, Vol.71, p.166-174</ispartof><rights>2016 Elsevier Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c384t-5adfcf95f4b81983e8a01a959cfef8b1f9c481f65d71da9e333e497f7a94c26a3</citedby><cites>FETCH-LOGICAL-c384t-5adfcf95f4b81983e8a01a959cfef8b1f9c481f65d71da9e333e497f7a94c26a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Nadiv, Roey</creatorcontrib><creatorcontrib>Shtein, Michael</creatorcontrib><creatorcontrib>Refaeli, Maor</creatorcontrib><creatorcontrib>Peled, Alva</creatorcontrib><creatorcontrib>Regev, Oren</creatorcontrib><title>The critical role of nanotube shape in cement composites</title><title>Cement & concrete composites</title><description>The growing availability of nanotubes and the increased knowledge about their loading in polymers have prompted the incorporation of nanotubes in cementitious matrices. The effects of loading straight tungsten di-sulfide nanotubes (WS2NT) or waved carbon nanotubes (CNT) in cementitious matrices was explored. Their inclusion in these composites at exceptionally low concentrations (0.063 vol% and 0.15 vol% for WS2NT and CNT, respectively) enhanced the composite’s mechanical properties, including compressive and flexural strengths (25–38%). Thermal analysis and electron microscopy indicated that nanotube incorporation in cementitious matrices also accelerated hydration reaction kinetics. It was shown that straight WS2NTs bridged pores and cracks more effectively than the waved CNTs, which resist crack propagation via an anchoring mechanism. A comparison to representative cement nanocomposite systems shows that nanotubes (aspect ratio≫1), offer better reinforcement efficiencies than particulate nanomaterials, yielding high mechanical properties enhancement at low concentration.</description><subject>Carbon nanotubes</subject><subject>Cement</subject><subject>Cements</subject><subject>Composite</subject><subject>Compressive properties</subject><subject>Cracks</subject><subject>Fractography</subject><subject>Inclusions</subject><subject>Low concentrations</subject><subject>Mechanical properties</subject><subject>Nanostructure</subject><subject>Nanotubes</subject><issn>0958-9465</issn><issn>1873-393X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><recordid>eNqNkMtKxDAUhoMoOI6-Q5ZuWpMmaZKlDt5AcDOCu5BJT5gMbVOTjODb22EEl7o68PNfOB9CmJKaEtre7GoHg4uji8NUN7NSE1ET2pygBVWSVUyz91O0IFqoSvNWnKOLnHeEkJbLZoHUegvYpVCCsz1OsQccPR7tGMt-Azhv7QQ4jHgegbHgw0rMoUC-RGfe9hmufu4SvT3cr1dP1cvr4_Pq9qVyTPFSCdt557XwfKOoVgyUJdRqoZ0HrzbUa8cV9a3oJO2sBsYYcC29tJq7prVsia6PvVOKH3vIxQwhO-h7O0LcZ0NVIwRvpND_sBIlqdJczlZ1tLoUc07gzZTCYNOXocQcuJqd-eVqDlwNEWbmOkfvjlGYv_4MkEx2AUYHXUjgiuli-LvkGxynhko</recordid><startdate>201608</startdate><enddate>201608</enddate><creator>Nadiv, Roey</creator><creator>Shtein, Michael</creator><creator>Refaeli, Maor</creator><creator>Peled, Alva</creator><creator>Regev, Oren</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H96</scope><scope>L.G</scope><scope>7QQ</scope><scope>7SR</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>KR7</scope></search><sort><creationdate>201608</creationdate><title>The critical role of nanotube shape in cement composites</title><author>Nadiv, Roey ; Shtein, Michael ; Refaeli, Maor ; Peled, Alva ; Regev, Oren</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c384t-5adfcf95f4b81983e8a01a959cfef8b1f9c481f65d71da9e333e497f7a94c26a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Carbon nanotubes</topic><topic>Cement</topic><topic>Cements</topic><topic>Composite</topic><topic>Compressive properties</topic><topic>Cracks</topic><topic>Fractography</topic><topic>Inclusions</topic><topic>Low concentrations</topic><topic>Mechanical properties</topic><topic>Nanostructure</topic><topic>Nanotubes</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Nadiv, Roey</creatorcontrib><creatorcontrib>Shtein, Michael</creatorcontrib><creatorcontrib>Refaeli, Maor</creatorcontrib><creatorcontrib>Peled, Alva</creatorcontrib><creatorcontrib>Regev, Oren</creatorcontrib><collection>CrossRef</collection><collection>Water Resources Abstracts</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><jtitle>Cement & concrete composites</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Nadiv, Roey</au><au>Shtein, Michael</au><au>Refaeli, Maor</au><au>Peled, Alva</au><au>Regev, Oren</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The critical role of nanotube shape in cement composites</atitle><jtitle>Cement & concrete composites</jtitle><date>2016-08</date><risdate>2016</risdate><volume>71</volume><spage>166</spage><epage>174</epage><pages>166-174</pages><issn>0958-9465</issn><eissn>1873-393X</eissn><abstract>The growing availability of nanotubes and the increased knowledge about their loading in polymers have prompted the incorporation of nanotubes in cementitious matrices. The effects of loading straight tungsten di-sulfide nanotubes (WS2NT) or waved carbon nanotubes (CNT) in cementitious matrices was explored. Their inclusion in these composites at exceptionally low concentrations (0.063 vol% and 0.15 vol% for WS2NT and CNT, respectively) enhanced the composite’s mechanical properties, including compressive and flexural strengths (25–38%). Thermal analysis and electron microscopy indicated that nanotube incorporation in cementitious matrices also accelerated hydration reaction kinetics. It was shown that straight WS2NTs bridged pores and cracks more effectively than the waved CNTs, which resist crack propagation via an anchoring mechanism. A comparison to representative cement nanocomposite systems shows that nanotubes (aspect ratio≫1), offer better reinforcement efficiencies than particulate nanomaterials, yielding high mechanical properties enhancement at low concentration.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.cemconcomp.2016.05.012</doi><tpages>9</tpages></addata></record>
fulltext	fulltext
identifier	ISSN: 0958-9465
ispartof	Cement & concrete composites, 2016-08, Vol.71, p.166-174
issn	0958-9465 1873-393X
language	eng
recordid	cdi_proquest_miscellaneous_1825542759
source	Elsevier
subjects	Carbon nanotubes Cement Cements Composite Compressive properties Cracks Fractography Inclusions Low concentrations Mechanical properties Nanostructure Nanotubes
title	The critical role of nanotube shape in cement composites
url	http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-05T01%3A00%3A56IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=The%20critical%20role%20of%20nanotube%20shape%20in%20cement%20composites&rft.jtitle=Cement%20&%20concrete%20composites&rft.au=Nadiv,%20Roey&rft.date=2016-08&rft.volume=71&rft.spage=166&rft.epage=174&rft.pages=166-174&rft.issn=0958-9465&rft.eissn=1873-393X&rft_id=info:doi/10.1016/j.cemconcomp.2016.05.012&rft_dat=%3Cproquest_cross%3E1825542759%3C/proquest_cross%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c384t-5adfcf95f4b81983e8a01a959cfef8b1f9c481f65d71da9e333e497f7a94c26a3%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=1808718947&rft_id=info:pmid/&rfr_iscdi=true