Self-healing concrete with crystalline admixture made with different cement content

Detalhes bibliográficos
Autor(a) principal: Geraldo,R. H.
Data de Publicação: 2021
Outros Autores: Guadagnini,A. M., Camarini,G.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Cerâmica (São Paulo. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132021000300370
Resumo: Abstract Self-healing concrete (SHC) is obtained with self-healing agents, which can seal small cracks without additional repair works, improving concrete durability. The present paper studied the influence of cement content (450, 475, and 500 kg/m3) on mechanical properties (compressive and tensile strength) and porosity (capillary water absorption, water absorption, and void index) of SHC with crystalline admixture. A crack induction was carried out in SHC, and the results were compared with two reference concretes (with and without crack induction). SHC had similar compressive strength with reference concrete made without crack induction, independently of cement content. Water absorption and void index of SHC decreased with higher cement content, and a significant reduction of capillary water absorption was found after 90 days. The crystalline admixture was very efficient in decreasing concrete porosity mainly at longer ages. SHC made with high cement content developed a higher porosity reduction.
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spelling Self-healing concrete with crystalline admixture made with different cement contentself-healing concretecrystalline admixtureautogenous healingdurabilityAbstract Self-healing concrete (SHC) is obtained with self-healing agents, which can seal small cracks without additional repair works, improving concrete durability. The present paper studied the influence of cement content (450, 475, and 500 kg/m3) on mechanical properties (compressive and tensile strength) and porosity (capillary water absorption, water absorption, and void index) of SHC with crystalline admixture. A crack induction was carried out in SHC, and the results were compared with two reference concretes (with and without crack induction). SHC had similar compressive strength with reference concrete made without crack induction, independently of cement content. Water absorption and void index of SHC decreased with higher cement content, and a significant reduction of capillary water absorption was found after 90 days. The crystalline admixture was very efficient in decreasing concrete porosity mainly at longer ages. SHC made with high cement content developed a higher porosity reduction.Associação Brasileira de Cerâmica2021-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132021000300370Cerâmica v.67 n.383 2021reponame:Cerâmica (São Paulo. Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/0366-69132021673833118info:eu-repo/semantics/openAccessGeraldo,R. H.Guadagnini,A. M.Camarini,G.eng2021-09-24T00:00:00Zoai:scielo:S0366-69132021000300370Revistahttps://www.scielo.br/j/ce/PUBhttps://old.scielo.br/oai/scielo-oai.phpceram.abc@gmail.com||ceram.abc@gmail.com1678-45530366-6913opendoar:2021-09-24T00:00Cerâmica (São Paulo. Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Self-healing concrete with crystalline admixture made with different cement content
title Self-healing concrete with crystalline admixture made with different cement content
spellingShingle Self-healing concrete with crystalline admixture made with different cement content
Geraldo,R. H.
self-healing concrete
crystalline admixture
autogenous healing
durability
title_short Self-healing concrete with crystalline admixture made with different cement content
title_full Self-healing concrete with crystalline admixture made with different cement content
title_fullStr Self-healing concrete with crystalline admixture made with different cement content
title_full_unstemmed Self-healing concrete with crystalline admixture made with different cement content
title_sort Self-healing concrete with crystalline admixture made with different cement content
author Geraldo,R. H.
author_facet Geraldo,R. H.
Guadagnini,A. M.
Camarini,G.
author_role author
author2 Guadagnini,A. M.
Camarini,G.
author2_role author
author
dc.contributor.author.fl_str_mv Geraldo,R. H.
Guadagnini,A. M.
Camarini,G.
dc.subject.por.fl_str_mv self-healing concrete
crystalline admixture
autogenous healing
durability
topic self-healing concrete
crystalline admixture
autogenous healing
durability
description Abstract Self-healing concrete (SHC) is obtained with self-healing agents, which can seal small cracks without additional repair works, improving concrete durability. The present paper studied the influence of cement content (450, 475, and 500 kg/m3) on mechanical properties (compressive and tensile strength) and porosity (capillary water absorption, water absorption, and void index) of SHC with crystalline admixture. A crack induction was carried out in SHC, and the results were compared with two reference concretes (with and without crack induction). SHC had similar compressive strength with reference concrete made without crack induction, independently of cement content. Water absorption and void index of SHC decreased with higher cement content, and a significant reduction of capillary water absorption was found after 90 days. The crystalline admixture was very efficient in decreasing concrete porosity mainly at longer ages. SHC made with high cement content developed a higher porosity reduction.
publishDate 2021
dc.date.none.fl_str_mv 2021-09-01
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=S0366-69132021000300370
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132021000300370
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0366-69132021673833118
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 Associação Brasileira de Cerâmica
publisher.none.fl_str_mv Associação Brasileira de Cerâmica
dc.source.none.fl_str_mv Cerâmica v.67 n.383 2021
reponame:Cerâmica (São Paulo. Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Cerâmica (São Paulo. Online)
collection Cerâmica (São Paulo. Online)
repository.name.fl_str_mv Cerâmica (São Paulo. Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv ceram.abc@gmail.com||ceram.abc@gmail.com
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