Mechanical performance and chloride penetration resistance of concretes with low cement contents

Detalhes bibliográficos
Autor(a) principal: Cândido,Taíssa Guedes
Data de Publicação: 2022
Outros Autores: Meira,Gibson Rocha, Quattrone,Marco, John,Vanderley Moacyr
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=S1983-41952022000600202
Resumo: abstract: The concern about the environment has been leading the construction industry to adopt more sustainable practices. The main environmental impact of concrete is related to CO2 emissions coming from cement, particularly from the cement content in concrete. For this reason, this research evaluates the performance of concretes with partial replacement of Portland cement by limestone filler and silica fume. These concretes were proportioned to improve particles’ packing and paste volume optimization. The compressive strength was determined to assess their mechanical performance. Their durability was investigated by capillary absorption and chloride penetration resistance. Results indicate that concretes showed a better efficiency in terms of binder intensity, with values close to the minimum found in literature (5 kg.m-3.MPa-1). It was also observed that even concretes with cement content lower than the minimum recommended by standards showed better performance than regular concretes regarding the chloride’s penetration.
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spelling Mechanical performance and chloride penetration resistance of concretes with low cement contentsecoefficient concretelow binder concretelimestone fillerdurabilitychloride resistanceabstract: The concern about the environment has been leading the construction industry to adopt more sustainable practices. The main environmental impact of concrete is related to CO2 emissions coming from cement, particularly from the cement content in concrete. For this reason, this research evaluates the performance of concretes with partial replacement of Portland cement by limestone filler and silica fume. These concretes were proportioned to improve particles’ packing and paste volume optimization. The compressive strength was determined to assess their mechanical performance. Their durability was investigated by capillary absorption and chloride penetration resistance. Results indicate that concretes showed a better efficiency in terms of binder intensity, with values close to the minimum found in literature (5 kg.m-3.MPa-1). It was also observed that even concretes with cement content lower than the minimum recommended by standards showed better performance than regular concretes regarding the chloride’s penetration.IBRACON - Instituto Brasileiro do Concreto2022-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952022000600202Revista IBRACON de Estruturas e Materiais v.15 n.6 2022reponame:Revista IBRACON de Estruturas e Materiaisinstname:Instituto Brasileiro do Concreto (IBRACON)instacron:IBRACON10.1590/s1983-41952022000600008info:eu-repo/semantics/openAccessCândido,Taíssa GuedesMeira,Gibson RochaQuattrone,MarcoJohn,Vanderley Moacyreng2022-11-08T00:00:00Zoai:scielo:S1983-41952022000600202Revistahttp://www.revistas.ibracon.org.br/index.php/riemhttps://old.scielo.br/oai/scielo-oai.phpeditores.riem@gmail.com||arlene@ibracon.org.br1983-41951983-4195opendoar:2022-11-08T00:00Revista IBRACON de Estruturas e Materiais - Instituto Brasileiro do Concreto (IBRACON)false
dc.title.none.fl_str_mv Mechanical performance and chloride penetration resistance of concretes with low cement contents
title Mechanical performance and chloride penetration resistance of concretes with low cement contents
spellingShingle Mechanical performance and chloride penetration resistance of concretes with low cement contents
Cândido,Taíssa Guedes
ecoefficient concrete
low binder concrete
limestone filler
durability
chloride resistance
title_short Mechanical performance and chloride penetration resistance of concretes with low cement contents
title_full Mechanical performance and chloride penetration resistance of concretes with low cement contents
title_fullStr Mechanical performance and chloride penetration resistance of concretes with low cement contents
title_full_unstemmed Mechanical performance and chloride penetration resistance of concretes with low cement contents
title_sort Mechanical performance and chloride penetration resistance of concretes with low cement contents
author Cândido,Taíssa Guedes
author_facet Cândido,Taíssa Guedes
Meira,Gibson Rocha
Quattrone,Marco
John,Vanderley Moacyr
author_role author
author2 Meira,Gibson Rocha
Quattrone,Marco
John,Vanderley Moacyr
author2_role author
author
author
dc.contributor.author.fl_str_mv Cândido,Taíssa Guedes
Meira,Gibson Rocha
Quattrone,Marco
John,Vanderley Moacyr
dc.subject.por.fl_str_mv ecoefficient concrete
low binder concrete
limestone filler
durability
chloride resistance
topic ecoefficient concrete
low binder concrete
limestone filler
durability
chloride resistance
description abstract: The concern about the environment has been leading the construction industry to adopt more sustainable practices. The main environmental impact of concrete is related to CO2 emissions coming from cement, particularly from the cement content in concrete. For this reason, this research evaluates the performance of concretes with partial replacement of Portland cement by limestone filler and silica fume. These concretes were proportioned to improve particles’ packing and paste volume optimization. The compressive strength was determined to assess their mechanical performance. Their durability was investigated by capillary absorption and chloride penetration resistance. Results indicate that concretes showed a better efficiency in terms of binder intensity, with values close to the minimum found in literature (5 kg.m-3.MPa-1). It was also observed that even concretes with cement content lower than the minimum recommended by standards showed better performance than regular concretes regarding the chloride’s penetration.
publishDate 2022
dc.date.none.fl_str_mv 2022-01-01
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=S1983-41952022000600202
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952022000600202
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/s1983-41952022000600008
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.15 n.6 2022
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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