Analysis of cementitious matrices self-healing with bacillus bacteria
Autor(a) principal: | |
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Data de Publicação: | 2022 |
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=S1983-41952022000400204 |
Resumo: | Abstract Bacterial solutions have been studied to promote self-healing of cementitious matrices, however, the concentration of this solutions varied between studies. Consequently, the objective of this study was to evaluate the self-healing potential of different concentrations of Bacillus subtilis AP91 encapsulated in expanded perlite (EP). Visual examination and capillary absorption of water was measured over time. Test samples were also subjected to strength resistance tests. The physiochemical properties of EP and his distribution on the matrix was evaluated. There was no observable trend in the effect of solution concentration on the width of crack healed. However, concentration affected the quantity and length of the fissures healed. Capillary absorption decreased as fissures were healed while no significant changes were measured in strength resistance regardless of the concentration. Results indicated that EP provided suitable encapsulation to the bacterial solution and there is an adequate distribution of the capsules in the cementitious matrix. |
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Analysis of cementitious matrices self-healing with bacillus bacteriabacteriaconcretedurabilitycrackingmortarself-healingAbstract Bacterial solutions have been studied to promote self-healing of cementitious matrices, however, the concentration of this solutions varied between studies. Consequently, the objective of this study was to evaluate the self-healing potential of different concentrations of Bacillus subtilis AP91 encapsulated in expanded perlite (EP). Visual examination and capillary absorption of water was measured over time. Test samples were also subjected to strength resistance tests. The physiochemical properties of EP and his distribution on the matrix was evaluated. There was no observable trend in the effect of solution concentration on the width of crack healed. However, concentration affected the quantity and length of the fissures healed. Capillary absorption decreased as fissures were healed while no significant changes were measured in strength resistance regardless of the concentration. Results indicated that EP provided suitable encapsulation to the bacterial solution and there is an adequate distribution of the capsules in the cementitious matrix.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=S1983-41952022000400204Revista IBRACON de Estruturas e Materiais v.15 n.4 2022reponame:Revista IBRACON de Estruturas e Materiaisinstname:Instituto Brasileiro do Concreto (IBRACON)instacron:IBRACON10.1590/s1983-41952022000400004info:eu-repo/semantics/openAccessMuller,ViniciusPacheco,FernandaCarvalho,Caroline MacedoFernandes,FrancieleValiati,Victor HugoModolo,Regina Celia EspinosaEhrenbring,Hinoel ZamisTutikian,Bernardo Fonsecaeng2022-01-20T00:00:00Zoai:scielo:S1983-41952022000400204Revistahttp://www.revistas.ibracon.org.br/index.php/riemhttps://old.scielo.br/oai/scielo-oai.phpeditores.riem@gmail.com||arlene@ibracon.org.br1983-41951983-4195opendoar:2022-01-20T00:00Revista IBRACON de Estruturas e Materiais - Instituto Brasileiro do Concreto (IBRACON)false |
dc.title.none.fl_str_mv |
Analysis of cementitious matrices self-healing with bacillus bacteria |
title |
Analysis of cementitious matrices self-healing with bacillus bacteria |
spellingShingle |
Analysis of cementitious matrices self-healing with bacillus bacteria Muller,Vinicius bacteria concrete durability cracking mortar self-healing |
title_short |
Analysis of cementitious matrices self-healing with bacillus bacteria |
title_full |
Analysis of cementitious matrices self-healing with bacillus bacteria |
title_fullStr |
Analysis of cementitious matrices self-healing with bacillus bacteria |
title_full_unstemmed |
Analysis of cementitious matrices self-healing with bacillus bacteria |
title_sort |
Analysis of cementitious matrices self-healing with bacillus bacteria |
author |
Muller,Vinicius |
author_facet |
Muller,Vinicius Pacheco,Fernanda Carvalho,Caroline Macedo Fernandes,Franciele Valiati,Victor Hugo Modolo,Regina Celia Espinosa Ehrenbring,Hinoel Zamis Tutikian,Bernardo Fonseca |
author_role |
author |
author2 |
Pacheco,Fernanda Carvalho,Caroline Macedo Fernandes,Franciele Valiati,Victor Hugo Modolo,Regina Celia Espinosa Ehrenbring,Hinoel Zamis Tutikian,Bernardo Fonseca |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Muller,Vinicius Pacheco,Fernanda Carvalho,Caroline Macedo Fernandes,Franciele Valiati,Victor Hugo Modolo,Regina Celia Espinosa Ehrenbring,Hinoel Zamis Tutikian,Bernardo Fonseca |
dc.subject.por.fl_str_mv |
bacteria concrete durability cracking mortar self-healing |
topic |
bacteria concrete durability cracking mortar self-healing |
description |
Abstract Bacterial solutions have been studied to promote self-healing of cementitious matrices, however, the concentration of this solutions varied between studies. Consequently, the objective of this study was to evaluate the self-healing potential of different concentrations of Bacillus subtilis AP91 encapsulated in expanded perlite (EP). Visual examination and capillary absorption of water was measured over time. Test samples were also subjected to strength resistance tests. The physiochemical properties of EP and his distribution on the matrix was evaluated. There was no observable trend in the effect of solution concentration on the width of crack healed. However, concentration affected the quantity and length of the fissures healed. Capillary absorption decreased as fissures were healed while no significant changes were measured in strength resistance regardless of the concentration. Results indicated that EP provided suitable encapsulation to the bacterial solution and there is an adequate distribution of the capsules in the cementitious matrix. |
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=S1983-41952022000400204 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952022000400204 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/s1983-41952022000400004 |
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.4 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 |
_version_ |
1754193606800834560 |