Effects of polypropylene fibers and measurement methods on the yield stress of grouts for the consolidation of heritage masonry walls

Detalhes bibliográficos
Autor(a) principal: Baltazar, Luis G.
Data de Publicação: 2020
Outros Autores: Henriques, Fernando M. A., Cidade, Maria Teresa
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10362/98891
Resumo: FeDeR funds through the COMPeTe 2020 Programme under the project number POCI-01-0145-FeDeR-007688.
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spelling Effects of polypropylene fibers and measurement methods on the yield stress of grouts for the consolidation of heritage masonry wallsConsolidationGroutMasonryPolypropylene fiberRheologyYield stressCondensed Matter PhysicsMechanical EngineeringFluid Flow and Transfer ProcessesFeDeR funds through the COMPeTe 2020 Programme under the project number POCI-01-0145-FeDeR-007688.The injection of grouts is a consolidation technique suitable for overcoming the structural deterioration of old stone masonry walls. Grouting operations involve introducing a suspension (grout) into a masonry core with the aim of improving the load capacity of the wall, as well as reducing its brittle mechanisms. The yield stress of injection grouts will affect the injection pressure and their flow inside the masonry. However, the determination of some rheological properties such as yield stress in hydraulic grout is challenging, due to the combined effects of hydration reactions and interactions between the particles present in the suspension. In this study, the determination of the yield stress of natural hydraulic lime-based grouts with polypropylene fibers was carried out. The changes in yield stress with time, fibers content and hydration were evaluated by two measurement methods using a rotational rheometer. Additionally, the static and dynamic yield stress as well as the critical shear-strain rate were determined, which provided useful information on the grout design in order to achieve successful grouting operations.DEC - Departamento de Engenharia CivilCENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N)DCM - Departamento de Ciência dos MateriaisRUNBaltazar, Luis G.Henriques, Fernando M. A.Cidade, Maria Teresa2020-06-05T00:52:43Z2020-062020-06-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10362/98891eng2311-5521PURE: 18368191https://doi.org/10.3390/fluids5020053info: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:RCAAP2024-03-11T04:46:05Zoai:run.unl.pt:10362/98891Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T03:39:05.689422Repositório 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 Effects of polypropylene fibers and measurement methods on the yield stress of grouts for the consolidation of heritage masonry walls
title Effects of polypropylene fibers and measurement methods on the yield stress of grouts for the consolidation of heritage masonry walls
spellingShingle Effects of polypropylene fibers and measurement methods on the yield stress of grouts for the consolidation of heritage masonry walls
Baltazar, Luis G.
Consolidation
Grout
Masonry
Polypropylene fiber
Rheology
Yield stress
Condensed Matter Physics
Mechanical Engineering
Fluid Flow and Transfer Processes
title_short Effects of polypropylene fibers and measurement methods on the yield stress of grouts for the consolidation of heritage masonry walls
title_full Effects of polypropylene fibers and measurement methods on the yield stress of grouts for the consolidation of heritage masonry walls
title_fullStr Effects of polypropylene fibers and measurement methods on the yield stress of grouts for the consolidation of heritage masonry walls
title_full_unstemmed Effects of polypropylene fibers and measurement methods on the yield stress of grouts for the consolidation of heritage masonry walls
title_sort Effects of polypropylene fibers and measurement methods on the yield stress of grouts for the consolidation of heritage masonry walls
author Baltazar, Luis G.
author_facet Baltazar, Luis G.
Henriques, Fernando M. A.
Cidade, Maria Teresa
author_role author
author2 Henriques, Fernando M. A.
Cidade, Maria Teresa
author2_role author
author
dc.contributor.none.fl_str_mv DEC - Departamento de Engenharia Civil
CENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N)
DCM - Departamento de Ciência dos Materiais
RUN
dc.contributor.author.fl_str_mv Baltazar, Luis G.
Henriques, Fernando M. A.
Cidade, Maria Teresa
dc.subject.por.fl_str_mv Consolidation
Grout
Masonry
Polypropylene fiber
Rheology
Yield stress
Condensed Matter Physics
Mechanical Engineering
Fluid Flow and Transfer Processes
topic Consolidation
Grout
Masonry
Polypropylene fiber
Rheology
Yield stress
Condensed Matter Physics
Mechanical Engineering
Fluid Flow and Transfer Processes
description FeDeR funds through the COMPeTe 2020 Programme under the project number POCI-01-0145-FeDeR-007688.
publishDate 2020
dc.date.none.fl_str_mv 2020-06-05T00:52:43Z
2020-06
2020-06-01T00:00:00Z
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/10362/98891
url http://hdl.handle.net/10362/98891
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 2311-5521
PURE: 18368191
https://doi.org/10.3390/fluids5020053
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.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
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