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The influence of silica fume on the apparent activation energy of HPC mixtures

dc.contributor.authorBarbosa, Mônica Pinto [UNESP]
dc.contributor.authorPinto, Roberto C.A.
dc.contributor.authorPeres, Luciano Donizete Pantano [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionUniversidade Federal de Santa Catarina (UFSC)
dc.date.accessioned2022-04-29T08:00:10Z
dc.date.available2022-04-29T08:00:10Z
dc.date.issued2005-09-01
dc.description.abstractThe use of the maturity approach has been increasing in various fields of concrete construction. In order to estimate the development of a mechanical property of the concrete mixture reliably, it is necessary to previously determine the apparent activation energy of the mixture. This thermal sensitivity index is a function of several parameters including cement type, presence of admixtures, and w/c. This study investigates the influence of silica fume on the apparent activation energy of high-performance concrete mixtures. Following the procedure in ASTM C 1074, various mortar mixtures were prepared with 6 different types of Brazilian cements (CP-I-S, CP-IIF-32, CP-II-Z-32, CP-III, CP-IV-RS e CP-V-ARI), and with addition of silica fume at two levels (8% and 16% of cement mass). The results indicate that the presence of silica fume increases the value of the apparent activation energy.en
dc.description.affiliationThe Civil Engineering Department FEIS - UNESP
dc.description.affiliationThe Federal University of Santa Catarina
dc.description.affiliationFEIS - UNESP
dc.description.affiliationUnespThe Civil Engineering Department FEIS - UNESP
dc.description.affiliationUnespFEIS - UNESP
dc.format.extent423-434
dc.identifier.citationAmerican Concrete Institute, ACI Special Publication, v. SP-229, p. 423-434.
dc.identifier.issn0193-2527
dc.identifier.scopus2-s2.0-85008470220
dc.identifier.urihttp://hdl.handle.net/11449/228266
dc.language.isoeng
dc.relation.ispartofAmerican Concrete Institute, ACI Special Publication
dc.sourceScopus
dc.subjectActivation energy
dc.subjectCement
dc.subjectMaturity method
dc.subjectSilica fume
dc.titleThe influence of silica fume on the apparent activation energy of HPC mixturesen
dc.typeTrabalho apresentado em evento
dspace.entity.typePublication
unesp.departmentEngenharia Civil - FEISpt

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