Test protocol and rheological model influence on determining the rheological properties of cement pastes
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.jobe.2021.103206 http://hdl.handle.net/11449/229858 |
Resumo: | 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. |
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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)Campos, R. S. [UNESP]Maciel, G. F. [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/openAccess2024-07-04T20:06:03Zoai:repositorio.unesp.br:11449/229858Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:16:02.328106Repositório 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 |
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.contributor.author.fl_str_mv |
Campos, R. S. [UNESP] Maciel, G. F. [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 |
|
_version_ |
1808128626814615552 |