The influence of silica fume on the apparent activation energy of HPC mixtures
Autor(a) principal: | |
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Data de Publicação: | 2005 |
Outros Autores: | , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/228266 |
Resumo: | The 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. |
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Repositório Institucional da UNESP |
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The influence of silica fume on the apparent activation energy of HPC mixturesActivation energyCementMaturity methodSilica fumeThe 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.The Civil Engineering Department FEIS - UNESPThe Federal University of Santa CatarinaFEIS - UNESPThe Civil Engineering Department FEIS - UNESPFEIS - UNESPUniversidade Estadual Paulista (UNESP)Universidade Federal de Santa Catarina (UFSC)Barbosa, Mônica Pinto [UNESP]Pinto, Roberto C.A.Peres, Luciano Donizete Pantano [UNESP]2022-04-29T08:00:10Z2022-04-29T08:00:10Z2005-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObject423-434American Concrete Institute, ACI Special Publication, v. SP-229, p. 423-434.0193-2527http://hdl.handle.net/11449/2282662-s2.0-85008470220Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengAmerican Concrete Institute, ACI Special Publicationinfo:eu-repo/semantics/openAccess2022-04-29T08:00:10Zoai:repositorio.unesp.br:11449/228266Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-29T08:00:10Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
The influence of silica fume on the apparent activation energy of HPC mixtures |
title |
The influence of silica fume on the apparent activation energy of HPC mixtures |
spellingShingle |
The influence of silica fume on the apparent activation energy of HPC mixtures Barbosa, Mônica Pinto [UNESP] Activation energy Cement Maturity method Silica fume |
title_short |
The influence of silica fume on the apparent activation energy of HPC mixtures |
title_full |
The influence of silica fume on the apparent activation energy of HPC mixtures |
title_fullStr |
The influence of silica fume on the apparent activation energy of HPC mixtures |
title_full_unstemmed |
The influence of silica fume on the apparent activation energy of HPC mixtures |
title_sort |
The influence of silica fume on the apparent activation energy of HPC mixtures |
author |
Barbosa, Mônica Pinto [UNESP] |
author_facet |
Barbosa, Mônica Pinto [UNESP] Pinto, Roberto C.A. Peres, Luciano Donizete Pantano [UNESP] |
author_role |
author |
author2 |
Pinto, Roberto C.A. Peres, Luciano Donizete Pantano [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Universidade Federal de Santa Catarina (UFSC) |
dc.contributor.author.fl_str_mv |
Barbosa, Mônica Pinto [UNESP] Pinto, Roberto C.A. Peres, Luciano Donizete Pantano [UNESP] |
dc.subject.por.fl_str_mv |
Activation energy Cement Maturity method Silica fume |
topic |
Activation energy Cement Maturity method Silica fume |
description |
The 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. |
publishDate |
2005 |
dc.date.none.fl_str_mv |
2005-09-01 2022-04-29T08:00:10Z 2022-04-29T08:00:10Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
American Concrete Institute, ACI Special Publication, v. SP-229, p. 423-434. 0193-2527 http://hdl.handle.net/11449/228266 2-s2.0-85008470220 |
identifier_str_mv |
American Concrete Institute, ACI Special Publication, v. SP-229, p. 423-434. 0193-2527 2-s2.0-85008470220 |
url |
http://hdl.handle.net/11449/228266 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
American Concrete Institute, ACI Special Publication |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
423-434 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799965097518432256 |