Microstructure and mechanical properties of carbon nanotube reinforced cementitious composites developed using a novel dispersion technique

doi:10.1016/j.cemconres.2015.03.006

Utilize este identificador para referenciar este registo: https://hdl.handle.net/1822/37038

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Campo DC	Valor	Idioma
dc.contributor.author	Parveen, Shama	por
dc.contributor.author	Rana, Sohel	por
dc.contributor.author	Fangueiro, Raúl	por
dc.contributor.author	Paiva, M. C.	por
dc.date.accessioned	2015-09-10T14:25:54Z	-
dc.date.available	2015-09-10T14:25:54Z	-
dc.date.issued	2015	-
dc.identifier.issn	0008-8846	por
dc.identifier.uri	https://hdl.handle.net/1822/37038	-
dc.description.abstract	The present paper reports the first attempt of developing carbon nanotube (CNT) reinforced cement composites through a short dispersion route using Pluronic F-127 as a novel dispersing agent. Optimum concentrations of Pluronic for various types of CNT were determined, and the influences of Pluronic and CNT on the microstructure and mechanical properties of cementitious composites were thoroughly investigated. Pluronic with optimized defoamer concentration significantly improved the bulk density and mechanical properties of cement mortar. Further, dispersion of 0.1% single walled nanotube (SWNT) improved flexural modulus of mortar by 72% and flexural and compressive strengths by 7% and 19%, respectively after 28 days of hydration. Flexural and compressive strengths with functionalized SWNT increased with the hydration period up to 17% and 23% after 56 days, respectively. All CNT reinforced samples exhibited significantly higher stiffness, fracture energy and ductility as compared to plain mortar and composite samples prepared using a common surfactant.	por
dc.description.sponsorship	The authors also acknowledge Centre for Textile Science and Technology (University of Minho) and FIBRENAMICS PLATFORMfor providing required conditions for this research. Sincere thanks are also due to Mr. Pedro Samuel Leite and Mr. Carlos Jesus for their kind help in sample preparation and testing.	-
dc.language.iso	eng	por
dc.publisher	Elsevier	por
dc.relation	info:eu-repo/grantAgreement/FCT/COMPETE/132964/PT	por
dc.rights	restrictedAccess	por
dc.subject	Carbon nanotube	por
dc.subject	Dispersion (A)	por
dc.subject	Cement (D)	por
dc.subject	Microstructure (B)	por
dc.subject	Mechanical Properties (C)	por
dc.title	Microstructure and mechanical properties of carbon nanotube reinforced cementitious composites developed using a novel dispersion technique	por
dc.type	article	-
dc.peerreviewed	yes	por
dc.relation.publisherversion	http://dx.doi.org/10.1016/j.cemconres.2015.03.006	por
sdum.publicationstatus	published	por
oaire.citationStartPage	215	por
oaire.citationEndPage	227	por
oaire.citationTitle	Cement and Concrete Research	por
oaire.citationVolume	73	por
dc.identifier.doi	10.1016/j.cemconres.2015.03.006	por
dc.subject.wos	Science & Technology	por
sdum.journal	Cement and Concrete Research	por
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