Influence of granitic rock fines addition in the alkali-aggregate reaction (AAR) in cementitious materials

Detalhes bibliográficos
Autor(a) principal: Santos,Bruna Silva
Data de Publicação: 2021
Outros Autores: Ribeiro,Daniel Véras
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista IBRACON de Estruturas e Materiais
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952021000200209
Resumo: Abstract According to previous studies, fine materials originated from reactive aggregates can act as a Alkali-Aggregate Reaction mitigator, having its effectiveness dependent on their reactivity, fineness and added content. Thus, the present work aims to study if reactive granitic rock fines can mitigate or reduce the AAR and how the fineness of the material influences its mitigation capacity. For this purpose, granitic rock fines (GRF) from 2 different deposits and Pyrex glass fines (PGF) were tested as concrete addition. Each one of these fines were used in two different finesses and added to the concrete in the contents of 20% by mass of cement. It was observed that the addition of GRF did not affect the physical-mechanical properties of concrete and allowed the reduction in the AAR, being more accentuated with the increase of its specific surface.
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spelling Influence of granitic rock fines addition in the alkali-aggregate reaction (AAR) in cementitious materialsalkali-aggregate reactiongranitic rock finesdurabilityperformanceAbstract According to previous studies, fine materials originated from reactive aggregates can act as a Alkali-Aggregate Reaction mitigator, having its effectiveness dependent on their reactivity, fineness and added content. Thus, the present work aims to study if reactive granitic rock fines can mitigate or reduce the AAR and how the fineness of the material influences its mitigation capacity. For this purpose, granitic rock fines (GRF) from 2 different deposits and Pyrex glass fines (PGF) were tested as concrete addition. Each one of these fines were used in two different finesses and added to the concrete in the contents of 20% by mass of cement. It was observed that the addition of GRF did not affect the physical-mechanical properties of concrete and allowed the reduction in the AAR, being more accentuated with the increase of its specific surface.IBRACON - Instituto Brasileiro do Concreto2021-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952021000200209Revista IBRACON de Estruturas e Materiais v.14 n.2 2021reponame:Revista IBRACON de Estruturas e Materiaisinstname:Instituto Brasileiro do Concreto (IBRACON)instacron:IBRACON10.1590/s1983-41952021000200003info:eu-repo/semantics/openAccessSantos,Bruna SilvaRibeiro,Daniel Véraseng2021-01-21T00:00:00Zoai:scielo:S1983-41952021000200209Revistahttp://www.revistas.ibracon.org.br/index.php/riemhttps://old.scielo.br/oai/scielo-oai.phpeditores.riem@gmail.com||arlene@ibracon.org.br1983-41951983-4195opendoar:2021-01-21T00:00Revista IBRACON de Estruturas e Materiais - Instituto Brasileiro do Concreto (IBRACON)false
dc.title.none.fl_str_mv Influence of granitic rock fines addition in the alkali-aggregate reaction (AAR) in cementitious materials
title Influence of granitic rock fines addition in the alkali-aggregate reaction (AAR) in cementitious materials
spellingShingle Influence of granitic rock fines addition in the alkali-aggregate reaction (AAR) in cementitious materials
Santos,Bruna Silva
alkali-aggregate reaction
granitic rock fines
durability
performance
title_short Influence of granitic rock fines addition in the alkali-aggregate reaction (AAR) in cementitious materials
title_full Influence of granitic rock fines addition in the alkali-aggregate reaction (AAR) in cementitious materials
title_fullStr Influence of granitic rock fines addition in the alkali-aggregate reaction (AAR) in cementitious materials
title_full_unstemmed Influence of granitic rock fines addition in the alkali-aggregate reaction (AAR) in cementitious materials
title_sort Influence of granitic rock fines addition in the alkali-aggregate reaction (AAR) in cementitious materials
author Santos,Bruna Silva
author_facet Santos,Bruna Silva
Ribeiro,Daniel Véras
author_role author
author2 Ribeiro,Daniel Véras
author2_role author
dc.contributor.author.fl_str_mv Santos,Bruna Silva
Ribeiro,Daniel Véras
dc.subject.por.fl_str_mv alkali-aggregate reaction
granitic rock fines
durability
performance
topic alkali-aggregate reaction
granitic rock fines
durability
performance
description Abstract According to previous studies, fine materials originated from reactive aggregates can act as a Alkali-Aggregate Reaction mitigator, having its effectiveness dependent on their reactivity, fineness and added content. Thus, the present work aims to study if reactive granitic rock fines can mitigate or reduce the AAR and how the fineness of the material influences its mitigation capacity. For this purpose, granitic rock fines (GRF) from 2 different deposits and Pyrex glass fines (PGF) were tested as concrete addition. Each one of these fines were used in two different finesses and added to the concrete in the contents of 20% by mass of cement. It was observed that the addition of GRF did not affect the physical-mechanical properties of concrete and allowed the reduction in the AAR, being more accentuated with the increase of its specific surface.
publishDate 2021
dc.date.none.fl_str_mv 2021-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952021000200209
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952021000200209
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/s1983-41952021000200003
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv IBRACON - Instituto Brasileiro do Concreto
publisher.none.fl_str_mv IBRACON - Instituto Brasileiro do Concreto
dc.source.none.fl_str_mv Revista IBRACON de Estruturas e Materiais v.14 n.2 2021
reponame:Revista IBRACON de Estruturas e Materiais
instname:Instituto Brasileiro do Concreto (IBRACON)
instacron:IBRACON
instname_str Instituto Brasileiro do Concreto (IBRACON)
instacron_str IBRACON
institution IBRACON
reponame_str Revista IBRACON de Estruturas e Materiais
collection Revista IBRACON de Estruturas e Materiais
repository.name.fl_str_mv Revista IBRACON de Estruturas e Materiais - Instituto Brasileiro do Concreto (IBRACON)
repository.mail.fl_str_mv editores.riem@gmail.com||arlene@ibracon.org.br
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