Test protocol and rheological model influence on determining the rheological properties of cement pastes

The rheological characterization of cement pastes, mortars and concretes considers the rheological parameters of complex suspensions, composed by different materials, which interact both chemically, and physically. In addition, distinct test conditions and diverse mixture compositions may also inter...

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Detalles Bibliográficos
Autores: Campos, R. S. [UNESP], Maciel, G. F. [UNESP]
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:Brasil
Institución:Universidade Estadual Paulista (UNESP)
Repositorio:Repositório Institucional da UNESP
Idioma:inglés
OAI Identifier:oai:repositorio.unesp.br:11449/229858
Acceso en línea:http://dx.doi.org/10.1016/j.jobe.2021.103206
http://hdl.handle.net/11449/229858
Access Level:acceso abierto
Palabra clave:Cement paste
Rheology
Rheometric test protocol
Yield stress
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spelling Test protocol and rheological model influence on determining the rheological properties of cement pastesCement pasteRheologyRheometric test protocolYield stressThe rheological characterization of cement pastes, mortars and concretes considers the rheological parameters of complex suspensions, composed by different materials, which interact both chemically, and physically. In addition, distinct test conditions and diverse mixture compositions may also interfere on determining the composites’ rheological properties. Along these lines, this work evaluates the test protocol and the rheological model influence on the rheological characterization of cement pastes. To do so, we established four different test protocols, with two maximum shear rates (50 and 100 s−1) and two distinct shearing methods (single-staged and multiple-staged). Bigham, modified Bingham and Herschel-Bulkley models were used to fit the experimental data. The water/cement mass ratio of the studied pastes ranged between 0.40 and 0.65. Our analysis indicates that the test protocol and the rheological model exerts significant influence on determining rheological parameters. In general, Herschel-Bulkley model showed better fitting to experimental data. More reproductive results were verified on the multiple-staged shearing with a maximum shear rate of 100 s−1.São Paulo State University – Faculty of Engineering of Ilha Solteira Department of Mechanical EngineeringSão Paulo State University – Faculty of Engineering of Ilha Solteira Department of Civil EngineeringSão Paulo State University – Faculty of Engineering of Ilha Solteira Department of Mechanical EngineeringSão Paulo State University – Faculty of Engineering of Ilha Solteira Department of Civil EngineeringUniversidade Estadual Paulista (UNESP)2022-04-29T08:36:16Z2022-04-29T08:36:16Z2021-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.jobe.2021.103206Journal of Building Engineering, v. 44.2352-7102http://hdl.handle.net/11449/22985810.1016/j.jobe.2021.1032062-s2.0-85118778782Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Building Engineeringinfo:eu-repo/semantics/openAccessCampos, R. S. [UNESP]Maciel, G. F. [UNESP]2024-07-04T20:06:03Zoai:repositorio.unesp.br:11449/229858Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462024-07-04T20:06:03Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Test protocol and rheological model influence on determining the rheological properties of cement pastes
title Test protocol and rheological model influence on determining the rheological properties of cement pastes
spellingShingle Test protocol and rheological model influence on determining the rheological properties of cement pastes
Campos, R. S. [UNESP]
Cement paste
Rheology
Rheometric test protocol
Yield stress
title_short Test protocol and rheological model influence on determining the rheological properties of cement pastes
title_full Test protocol and rheological model influence on determining the rheological properties of cement pastes
title_fullStr Test protocol and rheological model influence on determining the rheological properties of cement pastes
title_full_unstemmed Test protocol and rheological model influence on determining the rheological properties of cement pastes
title_sort Test protocol and rheological model influence on determining the rheological properties of cement pastes
dc.creator.none.fl_str_mv Campos, R. S. [UNESP]
Maciel, G. F. [UNESP]
author Campos, R. S. [UNESP]
author_facet Campos, R. S. [UNESP]
Maciel, G. F. [UNESP]
author_role author
author2 Maciel, G. F. [UNESP]
author2_role author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (UNESP)
dc.subject.por.fl_str_mv Cement paste
Rheology
Rheometric test protocol
Yield stress
topic Cement paste
Rheology
Rheometric test protocol
Yield stress
description The rheological characterization of cement pastes, mortars and concretes considers the rheological parameters of complex suspensions, composed by different materials, which interact both chemically, and physically. In addition, distinct test conditions and diverse mixture compositions may also interfere on determining the composites’ rheological properties. Along these lines, this work evaluates the test protocol and the rheological model influence on the rheological characterization of cement pastes. To do so, we established four different test protocols, with two maximum shear rates (50 and 100 s−1) and two distinct shearing methods (single-staged and multiple-staged). Bigham, modified Bingham and Herschel-Bulkley models were used to fit the experimental data. The water/cement mass ratio of the studied pastes ranged between 0.40 and 0.65. Our analysis indicates that the test protocol and the rheological model exerts significant influence on determining rheological parameters. In general, Herschel-Bulkley model showed better fitting to experimental data. More reproductive results were verified on the multiple-staged shearing with a maximum shear rate of 100 s−1.
publishDate 2021
dc.date.none.fl_str_mv 2021-12-01
2022-04-29T08:36:16Z
2022-04-29T08:36:16Z
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://dx.doi.org/10.1016/j.jobe.2021.103206
Journal of Building Engineering, v. 44.
2352-7102
http://hdl.handle.net/11449/229858
10.1016/j.jobe.2021.103206
2-s2.0-85118778782
url http://dx.doi.org/10.1016/j.jobe.2021.103206
http://hdl.handle.net/11449/229858
identifier_str_mv Journal of Building Engineering, v. 44.
2352-7102
10.1016/j.jobe.2021.103206
2-s2.0-85118778782
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Journal of Building Engineering
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv repositoriounesp@unesp.br
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