Monitoring steel fibre orientation in self-compacting cementitious composite slabs during pouring with dynamic X-ray radiography
Autor(a) principal: | |
---|---|
Data de Publicação: | 2021 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | https://hdl.handle.net/1822/78106 |
Resumo: | This paper presents a new technique based on dynamic X-ray radiography that can be used to assess fibre orientation during pouring of steel fibre reinforced cementitious composites. Synthetic examples were used to assess the suitability and robustness of the technique, which was shown to provide reliable measurements of fibre orientation even when the signal-to-noise ratio is relatively high. A study was then carried out on the effect of formwork aspect ratio, time/duration of pouring, and rebar placement on the fibre orientation while pouring self-compacting cementitious composite slabs. Results demonstrated the ability of the technique in monitoring the movements of fibres while pouring, and the strong effect of the flow in inducing preferential fibre alignment within the slabs. Fibre orientation was found to vary progressively over time and could take about half of the duration of pouring to fully stabilise. |
id |
RCAP_0d02a7d86bba625dc69865ae67b78990 |
---|---|
oai_identifier_str |
oai:repositorium.sdum.uminho.pt:1822/78106 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Monitoring steel fibre orientation in self-compacting cementitious composite slabs during pouring with dynamic X-ray radiographyFibre orientationSelf-compacting cementitious compositeSteel fibre reinforced cementitious compositeDynamic X-ray radiographyEngenharia e Tecnologia::Engenharia CivilScience & TechnologyThis paper presents a new technique based on dynamic X-ray radiography that can be used to assess fibre orientation during pouring of steel fibre reinforced cementitious composites. Synthetic examples were used to assess the suitability and robustness of the technique, which was shown to provide reliable measurements of fibre orientation even when the signal-to-noise ratio is relatively high. A study was then carried out on the effect of formwork aspect ratio, time/duration of pouring, and rebar placement on the fibre orientation while pouring self-compacting cementitious composite slabs. Results demonstrated the ability of the technique in monitoring the movements of fibres while pouring, and the strong effect of the flow in inducing preferential fibre alignment within the slabs. Fibre orientation was found to vary progressively over time and could take about half of the duration of pouring to fully stabilise.University of Sydney - Sydney Research Accelerator (SOAR) programmeElsevierUniversidade do MinhoMarks, BenjyMiletić, MartaLee, Bernard Cheuk HayZia, Muhammad HazimBarros, Joaquim A. O.Dias-da-Costa, Daniel2021-052021-05-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/78106eng0008-884610.1016/j.cemconres.2021.106390106390https://www.sciencedirect.com/science/article/pii/S0008884621000399?via%3Dihubinfo: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:RCAAP2023-07-21T12:50:37Zoai:repositorium.sdum.uminho.pt:1822/78106Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T19:49:20.373685Repositório 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 |
Monitoring steel fibre orientation in self-compacting cementitious composite slabs during pouring with dynamic X-ray radiography |
title |
Monitoring steel fibre orientation in self-compacting cementitious composite slabs during pouring with dynamic X-ray radiography |
spellingShingle |
Monitoring steel fibre orientation in self-compacting cementitious composite slabs during pouring with dynamic X-ray radiography Marks, Benjy Fibre orientation Self-compacting cementitious composite Steel fibre reinforced cementitious composite Dynamic X-ray radiography Engenharia e Tecnologia::Engenharia Civil Science & Technology |
title_short |
Monitoring steel fibre orientation in self-compacting cementitious composite slabs during pouring with dynamic X-ray radiography |
title_full |
Monitoring steel fibre orientation in self-compacting cementitious composite slabs during pouring with dynamic X-ray radiography |
title_fullStr |
Monitoring steel fibre orientation in self-compacting cementitious composite slabs during pouring with dynamic X-ray radiography |
title_full_unstemmed |
Monitoring steel fibre orientation in self-compacting cementitious composite slabs during pouring with dynamic X-ray radiography |
title_sort |
Monitoring steel fibre orientation in self-compacting cementitious composite slabs during pouring with dynamic X-ray radiography |
author |
Marks, Benjy |
author_facet |
Marks, Benjy Miletić, Marta Lee, Bernard Cheuk Hay Zia, Muhammad Hazim Barros, Joaquim A. O. Dias-da-Costa, Daniel |
author_role |
author |
author2 |
Miletić, Marta Lee, Bernard Cheuk Hay Zia, Muhammad Hazim Barros, Joaquim A. O. Dias-da-Costa, Daniel |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Marks, Benjy Miletić, Marta Lee, Bernard Cheuk Hay Zia, Muhammad Hazim Barros, Joaquim A. O. Dias-da-Costa, Daniel |
dc.subject.por.fl_str_mv |
Fibre orientation Self-compacting cementitious composite Steel fibre reinforced cementitious composite Dynamic X-ray radiography Engenharia e Tecnologia::Engenharia Civil Science & Technology |
topic |
Fibre orientation Self-compacting cementitious composite Steel fibre reinforced cementitious composite Dynamic X-ray radiography Engenharia e Tecnologia::Engenharia Civil Science & Technology |
description |
This paper presents a new technique based on dynamic X-ray radiography that can be used to assess fibre orientation during pouring of steel fibre reinforced cementitious composites. Synthetic examples were used to assess the suitability and robustness of the technique, which was shown to provide reliable measurements of fibre orientation even when the signal-to-noise ratio is relatively high. A study was then carried out on the effect of formwork aspect ratio, time/duration of pouring, and rebar placement on the fibre orientation while pouring self-compacting cementitious composite slabs. Results demonstrated the ability of the technique in monitoring the movements of fibres while pouring, and the strong effect of the flow in inducing preferential fibre alignment within the slabs. Fibre orientation was found to vary progressively over time and could take about half of the duration of pouring to fully stabilise. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-05 2021-05-01T00:00:00Z |
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 |
https://hdl.handle.net/1822/78106 |
url |
https://hdl.handle.net/1822/78106 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0008-8846 10.1016/j.cemconres.2021.106390 106390 https://www.sciencedirect.com/science/article/pii/S0008884621000399?via%3Dihub |
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.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
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 |
repository.mail.fl_str_mv |
|
_version_ |
1799133073954045952 |