Biotech cementitious materials : some aspects of an innovative approach for concrete with enhanced durability

Detalhes bibliográficos
Autor(a) principal: Pacheco-Torgal, F.
Data de Publicação: 2013
Outros Autores: Labrincha, J. A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/22573
Resumo: The deterioration of reinforced concrete structures is a very common problem due to the fact that this material has a high permeability which allows water and other aggressive media to enter, thus leading to corrosion problems. The use of sealers is a common way of contributing to concrete durability. However, the most common ones are based on organic polymers which have some degree of toxicity. The Regulation (EU) 305/2011 related to the Construction Products Regulation emphasizes the need to reduce hazardous substances. Therefore, new low toxicity forms to increase concrete durability are needed. Recent investigations in the field of biotechnology show the potential of bioinspired materials in the development of low toxic solutions. This paper reviews current knowledge on the use of bacteria for concrete with enhanced durability. It covers the use of bacteria in concrete mix and also biomineralization in concrete surface treatments. Investigation gaps are described. Results from practical applications in which there is exposure to environmental conditions are still needed in order to confirm the importance of this new approach.
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spelling Biotech cementitious materials : some aspects of an innovative approach for concrete with enhanced durabilityConcrete durabilitySealersConstruction products regulationHazardous substancesBiomineralizationScience & TechnologyThe deterioration of reinforced concrete structures is a very common problem due to the fact that this material has a high permeability which allows water and other aggressive media to enter, thus leading to corrosion problems. The use of sealers is a common way of contributing to concrete durability. However, the most common ones are based on organic polymers which have some degree of toxicity. The Regulation (EU) 305/2011 related to the Construction Products Regulation emphasizes the need to reduce hazardous substances. Therefore, new low toxicity forms to increase concrete durability are needed. Recent investigations in the field of biotechnology show the potential of bioinspired materials in the development of low toxic solutions. This paper reviews current knowledge on the use of bacteria for concrete with enhanced durability. It covers the use of bacteria in concrete mix and also biomineralization in concrete surface treatments. Investigation gaps are described. Results from practical applications in which there is exposure to environmental conditions are still needed in order to confirm the importance of this new approach.ElsevierUniversidade do MinhoPacheco-Torgal, F.Labrincha, J. A.2013-01-042013-01-04T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/22573eng0950-061810.1016/j.conbuildmat.2012.09.080info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:10:09Zoai:repositorium.sdum.uminho.pt:1822/22573Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:01:43.263018Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Biotech cementitious materials : some aspects of an innovative approach for concrete with enhanced durability
title Biotech cementitious materials : some aspects of an innovative approach for concrete with enhanced durability
spellingShingle Biotech cementitious materials : some aspects of an innovative approach for concrete with enhanced durability
Pacheco-Torgal, F.
Concrete durability
Sealers
Construction products regulation
Hazardous substances
Biomineralization
Science & Technology
title_short Biotech cementitious materials : some aspects of an innovative approach for concrete with enhanced durability
title_full Biotech cementitious materials : some aspects of an innovative approach for concrete with enhanced durability
title_fullStr Biotech cementitious materials : some aspects of an innovative approach for concrete with enhanced durability
title_full_unstemmed Biotech cementitious materials : some aspects of an innovative approach for concrete with enhanced durability
title_sort Biotech cementitious materials : some aspects of an innovative approach for concrete with enhanced durability
author Pacheco-Torgal, F.
author_facet Pacheco-Torgal, F.
Labrincha, J. A.
author_role author
author2 Labrincha, J. A.
author2_role author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Pacheco-Torgal, F.
Labrincha, J. A.
dc.subject.por.fl_str_mv Concrete durability
Sealers
Construction products regulation
Hazardous substances
Biomineralization
Science & Technology
topic Concrete durability
Sealers
Construction products regulation
Hazardous substances
Biomineralization
Science & Technology
description The deterioration of reinforced concrete structures is a very common problem due to the fact that this material has a high permeability which allows water and other aggressive media to enter, thus leading to corrosion problems. The use of sealers is a common way of contributing to concrete durability. However, the most common ones are based on organic polymers which have some degree of toxicity. The Regulation (EU) 305/2011 related to the Construction Products Regulation emphasizes the need to reduce hazardous substances. Therefore, new low toxicity forms to increase concrete durability are needed. Recent investigations in the field of biotechnology show the potential of bioinspired materials in the development of low toxic solutions. This paper reviews current knowledge on the use of bacteria for concrete with enhanced durability. It covers the use of bacteria in concrete mix and also biomineralization in concrete surface treatments. Investigation gaps are described. Results from practical applications in which there is exposure to environmental conditions are still needed in order to confirm the importance of this new approach.
publishDate 2013
dc.date.none.fl_str_mv 2013-01-04
2013-01-04T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/1822/22573
url http://hdl.handle.net/1822/22573
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0950-0618
10.1016/j.conbuildmat.2012.09.080
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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