Effect of innovative bioproducts on the performance of bioformulated earthen plasters

Detalhes bibliográficos
Autor(a) principal: Parracha, João Luís
Data de Publicação: 2021
Outros Autores: Pereira, Alice Santos, Velez da Silva, Ricardo, Silva, Vitor, Faria, Paulina
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/111903
Resumo: Fundação para a Ciência e Tecnologia (FCT) through research project PTDC/EPH-PAT/4684/2014: DB-HERITAGE, Database of building materials with historical and heritage interest. Part of this work was supported by the Applied Molecular Biosciences Unit-UCIBIO and the Civil Engineering Research and Innovation for Sustainability Unit-CERIS, which are financed by national funds from FCT (UIDB/04378/2020 and UIDB/04625/2020, respectively).
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spelling Effect of innovative bioproducts on the performance of bioformulated earthen plastersAir entraining agentBiotechnologyClayish earth mortarPhysical performancePorous structureVulnerability to waterWater absorptionCivil and Structural EngineeringBuilding and ConstructionMaterials Science(all)Fundação para a Ciência e Tecnologia (FCT) through research project PTDC/EPH-PAT/4684/2014: DB-HERITAGE, Database of building materials with historical and heritage interest. Part of this work was supported by the Applied Molecular Biosciences Unit-UCIBIO and the Civil Engineering Research and Innovation for Sustainability Unit-CERIS, which are financed by national funds from FCT (UIDB/04378/2020 and UIDB/04625/2020, respectively).Biotechnologies mainly based on precipitation of chemical compounds produced by microbial metabolism can be used as biotreatment or bioformulation of construction materials. Bioformulation of cement-based materials has been a common research practice, though its application to earthen-based building materials is still limited. Although earth mortars are vulnerable to water damage, they are nowadays often used as plasters on new constructions but also for the retrofitting of existent buildings. Their reversibility and compatibility with old substrates make them also interesting for conservation interventions, namely when applied to protect archaeological structures as sacrificial renders. In this study, an innovative bioproduct based on cellular extracts of Escherichia coli, cultured in Lysogeny broth (LB) medium and supplemented with iron, was developed and used as a component for earth mortars’ bioformulation. The Escherichia coli strain used is classified as not hazardous. An additional earth mortar bioformulated with LB medium as mixing liquid was also tested to assess the influence of the culture medium. The iron supplement was chosen to infer about iron oxide biomineral formation, a less toxic mineral than calcite, since no toxic by-products are produced, and iron oxide minerals have a longer lifetime when compared with calcite crystals. Bioformulated mortars presented a very distinct porous structure, with a significant decrease on mechanical properties. Nevertheless, they also showed a decrease on thermal conductivity, a slight consolidative effect, and a significant decrease on vulnerability towards water. Apart from the possible use as mortar air entraining agents, the obtained results show the interest on further studies on the use of nontoxic iron-based bioproducts for earthen mortars optimization.DEC - Departamento de Engenharia CivilCERIS - Polo NOVAUCIBIO - Applied Molecular Biosciences UnitDQ - Departamento de QuímicaRUNParracha, João LuísPereira, Alice SantosVelez da Silva, RicardoSilva, VitorFaria, Paulina2023-03-04T01:31:43Z2021-03-292021-03-29T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article14application/pdfhttp://hdl.handle.net/10362/111903eng0950-0618PURE: 27800639https://doi.org/10.1016/j.conbuildmat.2021.122261info: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:RCAAP2024-05-22T17:50:34Zoai:run.unl.pt:10362/111903Portal AgregadorONGhttps://www.rcaap.pt/oai/openairemluisa.alvim@gmail.comopendoar:71602024-05-22T17:50:34Repositório 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 Effect of innovative bioproducts on the performance of bioformulated earthen plasters
title Effect of innovative bioproducts on the performance of bioformulated earthen plasters
spellingShingle Effect of innovative bioproducts on the performance of bioformulated earthen plasters
Parracha, João Luís
Air entraining agent
Biotechnology
Clayish earth mortar
Physical performance
Porous structure
Vulnerability to water
Water absorption
Civil and Structural Engineering
Building and Construction
Materials Science(all)
title_short Effect of innovative bioproducts on the performance of bioformulated earthen plasters
title_full Effect of innovative bioproducts on the performance of bioformulated earthen plasters
title_fullStr Effect of innovative bioproducts on the performance of bioformulated earthen plasters
title_full_unstemmed Effect of innovative bioproducts on the performance of bioformulated earthen plasters
title_sort Effect of innovative bioproducts on the performance of bioformulated earthen plasters
author Parracha, João Luís
author_facet Parracha, João Luís
Pereira, Alice Santos
Velez da Silva, Ricardo
Silva, Vitor
Faria, Paulina
author_role author
author2 Pereira, Alice Santos
Velez da Silva, Ricardo
Silva, Vitor
Faria, Paulina
author2_role author
author
author
author
dc.contributor.none.fl_str_mv DEC - Departamento de Engenharia Civil
CERIS - Polo NOVA
UCIBIO - Applied Molecular Biosciences Unit
DQ - Departamento de Química
RUN
dc.contributor.author.fl_str_mv Parracha, João Luís
Pereira, Alice Santos
Velez da Silva, Ricardo
Silva, Vitor
Faria, Paulina
dc.subject.por.fl_str_mv Air entraining agent
Biotechnology
Clayish earth mortar
Physical performance
Porous structure
Vulnerability to water
Water absorption
Civil and Structural Engineering
Building and Construction
Materials Science(all)
topic Air entraining agent
Biotechnology
Clayish earth mortar
Physical performance
Porous structure
Vulnerability to water
Water absorption
Civil and Structural Engineering
Building and Construction
Materials Science(all)
description Fundação para a Ciência e Tecnologia (FCT) through research project PTDC/EPH-PAT/4684/2014: DB-HERITAGE, Database of building materials with historical and heritage interest. Part of this work was supported by the Applied Molecular Biosciences Unit-UCIBIO and the Civil Engineering Research and Innovation for Sustainability Unit-CERIS, which are financed by national funds from FCT (UIDB/04378/2020 and UIDB/04625/2020, respectively).
publishDate 2021
dc.date.none.fl_str_mv 2021-03-29
2021-03-29T00:00:00Z
2023-03-04T01:31:43Z
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/10362/111903
url http://hdl.handle.net/10362/111903
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0950-0618
PURE: 27800639
https://doi.org/10.1016/j.conbuildmat.2021.122261
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 14
application/pdf
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 mluisa.alvim@gmail.com
_version_ 1817545780956758016

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