Logo do repositório
 
Publicação

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

2020-06Artigo científico Acesso aberto
Ver registo simples
dc.contributor.authorBaltazar, Luis G.
dc.contributor.authorHenriques, Fernando M. A.
dc.contributor.authorCidade, Maria Teresa
dc.contributor.institutionDEC - Departamento de Engenharia Civil
dc.contributor.institutionCENIMAT-i3N - Centro de Investigação de Materiais (Lab. Associado I3N)
dc.contributor.institutionDCM - Departamento de Ciência dos Materiais
dc.contributor.pblMDPI - Multidisciplinary Digital Publishing Institute
dc.date.accessioned2020-06-05T00:52:43Z
dc.date.available2020-06-05T00:52:43Z
dc.date.issued2020-06
dc.descriptionFeDeR funds through the COMPeTe 2020 Programme under the project number POCI-01-0145-FeDeR-007688.
dc.description.abstractThe 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.en
dc.description.versionpublishersversion
dc.description.versionpublished
dc.format.extent7822813
dc.identifier.doi10.3390/fluids5020053
dc.identifier.issn2311-5521
dc.identifier.otherPURE: 18368191
dc.identifier.otherPURE UUID: 03e4e34d-59a1-4816-86ee-10839e8d7fcc
dc.identifier.otherScopus: 85084120717
dc.identifier.otherORCID: /0000-0002-0544-5098/work/75126800
dc.identifier.otherORCID: /0000-0001-8261-6754/work/75128318
dc.identifier.urihttp://hdl.handle.net/10362/98891
dc.identifier.urlhttps://www.scopus.com/pages/publications/85084120717
dc.language.isoeng
dc.peerreviewedyes
dc.relationinfo:eu-repo/grantAgreement/FCT/5876/147333/PT
dc.subjectConsolidation
dc.subjectGrout
dc.subjectMasonry
dc.subjectPolypropylene fiber
dc.subjectRheology
dc.subjectYield stress
dc.subjectCondensed Matter Physics
dc.subjectMechanical Engineering
dc.subjectFluid Flow and Transfer Processes
dc.titleEffects of polypropylene fibers and measurement methods on the yield stress of grouts for the consolidation of heritage masonry wallsen
dc.typejournal article
degois.publication.issue2
degois.publication.titleFLUIDS
degois.publication.volume5
dspace.entity.typePublication
oaire.awardNumberUID/CTM/50025/2013
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FCTM%2F50025%2F2013/PT
oaire.fundingStream5876
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccess
relation.isProjectOfPublicationd94394ca-c419-4430-9491-83be2361e7a8
relation.isProjectOfPublication.latestForDiscoveryd94394ca-c419-4430-9491-83be2361e7a8

Ficheiros

Principais
A mostrar 1 - 1 de 1
Miniatura
Nome:
fluids_05_00053.pdf
Tamanho:
7.46 MB
Formato:
Adobe Portable Document Format
Ver/Abrir

Coleções

FCT: DCM - Artigos em revista internacional com arbitragem científica