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Carbon nanotube dispersion using Portland cement-compatible surfactants
conference contribution
posted on 2012-11-14, 00:00 authored by Frank CollinsFrank Collins, Alastair MacLeodAlastair MacLeod, W DuanCarbon nanotubes (CNTs) are among the strongest known materials. Their potential as nanoscale reinforcement for cementitious materials is significant, with some reported compressive strength increases in excess of 50%. However, there is a great deal of variability in the results obtained, with some researchers showing zero-to-marginal increases in mechanical properties. One major reason for this is the poor dispersion of CNTs within the cementitious matrix. Many different approaches have been employed to disperse the highly hydrophobic CNTs within water and cement paste, with varying degrees of success. This paper presents the results of dispersion trials undertaken on CNTs within neutral and alkaline aqueous solutions and assesses the relative performance of different surfactants to facilitate dispersion.
History
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Composites and Nanocomposites in Civil, Offshore and Mining Infrastructure. International Composites Conference (6th : 2012 : Melbourne, Victoria)Series
ACUN International Composites ConferencePagination
199 - 206Publisher
ACUN-6 Monash UniversityLocation
Melbourne, VictoriaPlace of publication
Clayton, Vic.Start date
2012-11-14End date
2012-11-16ISBN-13
978-0-646-58589-5Language
engPublication classification
E1.1 Full written paper - refereed; E Conference publicationCopyright notice
2012, ACUN-6 Monash UniversityEditor/Contributor(s)
Y Bai, S Bandyopadhyay, X Zhao, R Singh, S RizkallaTitle of proceedings
ACUN-6 2012 : Proceedings of the 6th International Composites Conference on Composites and Nanocomposites in Civil, Offshore and Mining InfrastructureUsage metrics
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