Impedance studies of wollastonite micro-fibre-reinforced cement paste systems

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TypeArticle
Journal titleAdvances in Cement Research
ISSN0951-7197
Volume18
Issue5
Pages8792; # of pages: 6
SubjectCement and Concrete; Concrete; Ciments
AbstractThe impedance behaviour of wollastonite micro-fibre reinforced cement-based composites at various degrees of hydration has been investigated. The observation of larger high-frequency arcs accompanying wollastonite micro-fibre addition to the Portland cement system at a hydration time greater than 3 days is an indication that the fibre matrix interface zone is less porous than the matrix itself. This conclusion is supported by SEM examination and porosimetry determinations. It is demonstrated that differences in the value of R2 (the diameter of the high-frequency arc) for pastes with and without fibre reinforcement can be explained by the contribution to pore structure of both the fibre-cement interface and the cement matrix.
Publication date
LanguageEnglish
AffiliationNRC Institute for Research in Construction; National Research Council Canada
Peer reviewedYes
IdentifierIRC-P-3128
NRC number35495
2971
NPARC number20375408
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Record identifier156bb434-b706-4493-8010-9f7f1938918b
Record created2012-07-23
Record modified2016-05-09
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