Evaluation of concrete self-healing by encapsulated sodium metasilicate in perlite and expanded clay
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , , , |
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=S1983-41952023000200201 |
Resumo: | abstract: Investigating the behavior of self-healing cementitious composites is necessary to know alternatives that can be applied in structures increasing their life service. Therefore, this study evaluated concrete self-he aling from the use of expanded perlite (EP) and expanded clay (EC) capsules impregnated with a sodium metasilicate solution. These materials were used to substitute natural aggregates in concrete in proportions of 0 wt·%, 15 wt·% and 30 wt·% which were cured in humid or submerged environments. Cracking was induced with a flexural test and a closing with cicatrization product. was evaluated and measured visually with a software. Capillary absorption tests indicated a reduction in the porosity of samples which incorporated self-healing materials, considering it as an important property related to durability. Samples with EP achieved 100% self-healing with 15% substitution. Crack filling was achieved in cracks up to 0.43 mm wide. Samples with EC achieved 50% crack recovery under humid curing and 90% under submerged curing. It was concluded that incorporating the sodium silicate allowed improvements to fissure sealing and it is an alternative to produce self-healing concrete in Brazil. EP was more effective than EC as encapsulating material. Despite that, the EP did not impact the compressive strength due to its small size and better packing of the mixture, Also, EP presented higher healing percentage when comparing with samples containing EC. |
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Evaluation of concrete self-healing by encapsulated sodium metasilicate in perlite and expanded clayconcreteself-healingexpanded perlitesodium meta-silicateabstract: Investigating the behavior of self-healing cementitious composites is necessary to know alternatives that can be applied in structures increasing their life service. Therefore, this study evaluated concrete self-he aling from the use of expanded perlite (EP) and expanded clay (EC) capsules impregnated with a sodium metasilicate solution. These materials were used to substitute natural aggregates in concrete in proportions of 0 wt·%, 15 wt·% and 30 wt·% which were cured in humid or submerged environments. Cracking was induced with a flexural test and a closing with cicatrization product. was evaluated and measured visually with a software. Capillary absorption tests indicated a reduction in the porosity of samples which incorporated self-healing materials, considering it as an important property related to durability. Samples with EP achieved 100% self-healing with 15% substitution. Crack filling was achieved in cracks up to 0.43 mm wide. Samples with EC achieved 50% crack recovery under humid curing and 90% under submerged curing. It was concluded that incorporating the sodium silicate allowed improvements to fissure sealing and it is an alternative to produce self-healing concrete in Brazil. EP was more effective than EC as encapsulating material. Despite that, the EP did not impact the compressive strength due to its small size and better packing of the mixture, Also, EP presented higher healing percentage when comparing with samples containing EC.IBRACON - Instituto Brasileiro do Concreto2023-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952023000200201Revista IBRACON de Estruturas e Materiais v.16 n.2 2023reponame:Revista IBRACON de Estruturas e Materiaisinstname:Instituto Brasileiro do Concreto (IBRACON)instacron:IBRACON10.1590/s1983-41952023000200001info:eu-repo/semantics/openAccessPacheco,FernandaBoscaini,Cláudio HenriqueGauto,Thaize NascimentoMüller,ViniciusEhrenbring,Hinoel ZamisModolo,Regina Célia EspinosaTutikian,Bernardo Fonsecaeng2022-08-22T00:00:00Zoai:scielo:S1983-41952023000200201Revistahttp://www.revistas.ibracon.org.br/index.php/riemhttps://old.scielo.br/oai/scielo-oai.phpeditores.riem@gmail.com||arlene@ibracon.org.br1983-41951983-4195opendoar:2022-08-22T00:00Revista IBRACON de Estruturas e Materiais - Instituto Brasileiro do Concreto (IBRACON)false |
dc.title.none.fl_str_mv |
Evaluation of concrete self-healing by encapsulated sodium metasilicate in perlite and expanded clay |
title |
Evaluation of concrete self-healing by encapsulated sodium metasilicate in perlite and expanded clay |
spellingShingle |
Evaluation of concrete self-healing by encapsulated sodium metasilicate in perlite and expanded clay Pacheco,Fernanda concrete self-healing expanded perlite sodium meta-silicate |
title_short |
Evaluation of concrete self-healing by encapsulated sodium metasilicate in perlite and expanded clay |
title_full |
Evaluation of concrete self-healing by encapsulated sodium metasilicate in perlite and expanded clay |
title_fullStr |
Evaluation of concrete self-healing by encapsulated sodium metasilicate in perlite and expanded clay |
title_full_unstemmed |
Evaluation of concrete self-healing by encapsulated sodium metasilicate in perlite and expanded clay |
title_sort |
Evaluation of concrete self-healing by encapsulated sodium metasilicate in perlite and expanded clay |
author |
Pacheco,Fernanda |
author_facet |
Pacheco,Fernanda Boscaini,Cláudio Henrique Gauto,Thaize Nascimento Müller,Vinicius Ehrenbring,Hinoel Zamis Modolo,Regina Célia Espinosa Tutikian,Bernardo Fonseca |
author_role |
author |
author2 |
Boscaini,Cláudio Henrique Gauto,Thaize Nascimento Müller,Vinicius Ehrenbring,Hinoel Zamis Modolo,Regina Célia Espinosa Tutikian,Bernardo Fonseca |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Pacheco,Fernanda Boscaini,Cláudio Henrique Gauto,Thaize Nascimento Müller,Vinicius Ehrenbring,Hinoel Zamis Modolo,Regina Célia Espinosa Tutikian,Bernardo Fonseca |
dc.subject.por.fl_str_mv |
concrete self-healing expanded perlite sodium meta-silicate |
topic |
concrete self-healing expanded perlite sodium meta-silicate |
description |
abstract: Investigating the behavior of self-healing cementitious composites is necessary to know alternatives that can be applied in structures increasing their life service. Therefore, this study evaluated concrete self-he aling from the use of expanded perlite (EP) and expanded clay (EC) capsules impregnated with a sodium metasilicate solution. These materials were used to substitute natural aggregates in concrete in proportions of 0 wt·%, 15 wt·% and 30 wt·% which were cured in humid or submerged environments. Cracking was induced with a flexural test and a closing with cicatrization product. was evaluated and measured visually with a software. Capillary absorption tests indicated a reduction in the porosity of samples which incorporated self-healing materials, considering it as an important property related to durability. Samples with EP achieved 100% self-healing with 15% substitution. Crack filling was achieved in cracks up to 0.43 mm wide. Samples with EC achieved 50% crack recovery under humid curing and 90% under submerged curing. It was concluded that incorporating the sodium silicate allowed improvements to fissure sealing and it is an alternative to produce self-healing concrete in Brazil. EP was more effective than EC as encapsulating material. Despite that, the EP did not impact the compressive strength due to its small size and better packing of the mixture, Also, EP presented higher healing percentage when comparing with samples containing EC. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-01-01 |
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=S1983-41952023000200201 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952023000200201 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/s1983-41952023000200001 |
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.16 n.2 2023 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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1754193606961266688 |