Measurement of concrete consistency through an automated slump test device: their validation and potentialities
Autor(a) principal: | |
---|---|
Data de Publicação: | 2021 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S1517-707620210004.1388 http://hdl.handle.net/11449/230314 |
Resumo: | From the development of a mechanical device capable of performing the slump test of concrete, this work evaluated the equipment's ability to simulate the test recommended by norm. Slumps using the standard test and the equipment developed were measured for different compositions of conventional concrete. The results confirmed the equipment's capacity to perform the slump test both in the lifting the Abrams cone and the slump reading, besides to allowing for less experimental errors associated with the operator during the test. Yield stress and plastic viscosity properties of the concretes produced were also evaluated-for this, empiri-cal models based on rheometric measures were used (modified slump test via BTREOM rheometer) verifying results compatible with those reported in the literature. It should be emphasizes to need for a precise measurement of the slump, in order not to compromise the rheological evaluations of the material, given the high dependence (sensibility) of yield stress and even more of the plastic viscosity to that measure. Furthermore, the slump test equipment allowed for a more complete flow characterization during the test, providing the descent temporal behavior of the material (as an indirect measure of the viscosity) until final slump. |
id |
UNSP_02e5b2ba04782d739dfe53613d2acea9 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/230314 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Measurement of concrete consistency through an automated slump test device: their validation and potentialitiesMedida de consistência do concreto pelo abatimento do tronco de cone automatizado: sua validação e potencialidadesConcretePlastic viscosityRheologySlump testYield stressFrom the development of a mechanical device capable of performing the slump test of concrete, this work evaluated the equipment's ability to simulate the test recommended by norm. Slumps using the standard test and the equipment developed were measured for different compositions of conventional concrete. The results confirmed the equipment's capacity to perform the slump test both in the lifting the Abrams cone and the slump reading, besides to allowing for less experimental errors associated with the operator during the test. Yield stress and plastic viscosity properties of the concretes produced were also evaluated-for this, empiri-cal models based on rheometric measures were used (modified slump test via BTREOM rheometer) verifying results compatible with those reported in the literature. It should be emphasizes to need for a precise measurement of the slump, in order not to compromise the rheological evaluations of the material, given the high dependence (sensibility) of yield stress and even more of the plastic viscosity to that measure. Furthermore, the slump test equipment allowed for a more complete flow characterization during the test, providing the descent temporal behavior of the material (as an indirect measure of the viscosity) until final slump.Universidade Estadual Paulista-UNESP Campus de Ilha Solteira Laboratório de Hidrologia e Hidrometria-LH2, Avenida Brasil Sul, 56, São PauloUniversidade Estadual Paulista-UNESP Campus de Ilha Solteira Departamento de Engenharia Civil, Alameda Bahia, 550, São PauloUniversidade Estadual Paulista-UNESP Campus de Ilha Solteira Laboratório de Hidrologia e Hidrometria-LH2, Avenida Brasil Sul, 56, São PauloUniversidade Estadual Paulista-UNESP Campus de Ilha Solteira Departamento de Engenharia Civil, Alameda Bahia, 550, São PauloUniversidade Estadual Paulista (UNESP)Pereira, João Batista [UNESP]Maciel, Geraldo de Freitas [UNESP]2022-04-29T08:39:18Z2022-04-29T08:39:18Z2021-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1590/S1517-707620210004.1388Revista Materia, v. 26, n. 4, 2021.1517-7076http://hdl.handle.net/11449/23031410.1590/S1517-707620210004.13882-s2.0-85123824958Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporRevista Materiainfo:eu-repo/semantics/openAccess2024-07-04T18:15:59Zoai:repositorio.unesp.br:11449/230314Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T17:20:01.720246Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Measurement of concrete consistency through an automated slump test device: their validation and potentialities Medida de consistência do concreto pelo abatimento do tronco de cone automatizado: sua validação e potencialidades |
title |
Measurement of concrete consistency through an automated slump test device: their validation and potentialities |
spellingShingle |
Measurement of concrete consistency through an automated slump test device: their validation and potentialities Pereira, João Batista [UNESP] Concrete Plastic viscosity Rheology Slump test Yield stress |
title_short |
Measurement of concrete consistency through an automated slump test device: their validation and potentialities |
title_full |
Measurement of concrete consistency through an automated slump test device: their validation and potentialities |
title_fullStr |
Measurement of concrete consistency through an automated slump test device: their validation and potentialities |
title_full_unstemmed |
Measurement of concrete consistency through an automated slump test device: their validation and potentialities |
title_sort |
Measurement of concrete consistency through an automated slump test device: their validation and potentialities |
author |
Pereira, João Batista [UNESP] |
author_facet |
Pereira, João Batista [UNESP] Maciel, Geraldo de Freitas [UNESP] |
author_role |
author |
author2 |
Maciel, Geraldo de Freitas [UNESP] |
author2_role |
author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Pereira, João Batista [UNESP] Maciel, Geraldo de Freitas [UNESP] |
dc.subject.por.fl_str_mv |
Concrete Plastic viscosity Rheology Slump test Yield stress |
topic |
Concrete Plastic viscosity Rheology Slump test Yield stress |
description |
From the development of a mechanical device capable of performing the slump test of concrete, this work evaluated the equipment's ability to simulate the test recommended by norm. Slumps using the standard test and the equipment developed were measured for different compositions of conventional concrete. The results confirmed the equipment's capacity to perform the slump test both in the lifting the Abrams cone and the slump reading, besides to allowing for less experimental errors associated with the operator during the test. Yield stress and plastic viscosity properties of the concretes produced were also evaluated-for this, empiri-cal models based on rheometric measures were used (modified slump test via BTREOM rheometer) verifying results compatible with those reported in the literature. It should be emphasizes to need for a precise measurement of the slump, in order not to compromise the rheological evaluations of the material, given the high dependence (sensibility) of yield stress and even more of the plastic viscosity to that measure. Furthermore, the slump test equipment allowed for a more complete flow characterization during the test, providing the descent temporal behavior of the material (as an indirect measure of the viscosity) until final slump. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-01-01 2022-04-29T08:39:18Z 2022-04-29T08:39:18Z |
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/10.1590/S1517-707620210004.1388 Revista Materia, v. 26, n. 4, 2021. 1517-7076 http://hdl.handle.net/11449/230314 10.1590/S1517-707620210004.1388 2-s2.0-85123824958 |
url |
http://dx.doi.org/10.1590/S1517-707620210004.1388 http://hdl.handle.net/11449/230314 |
identifier_str_mv |
Revista Materia, v. 26, n. 4, 2021. 1517-7076 10.1590/S1517-707620210004.1388 2-s2.0-85123824958 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Revista Materia |
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_ |
1808128791554293760 |