Influence of micro-cracking on capillary water absorption of an UHPFRC

Bibliographic Details
Main Author: Matos, A. M.
Publication Date: 2018
Other Authors: Nunes, S., Aguiar, J. L. Barroso de
Language: eng
Source: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
Download full: https://hdl.handle.net/1822/58990
Summary: The aim of this research was to investigate the influence of cracking on water transport by capillary suction in UHPFRC. Specimens were firstly pre-loaded under four-point bending up to a wide range of pre-defined crack open displacement. Crack pattern created was characterized (width, number of cracks) before capillarity testing. Test results showed that micro cracks induced by previous loading significantly increased the sorptivity comparing with non-cracked specimens. However, increasing the damage (COD of 200 up to 400 ?m), did not significantly compromise the absorption capillary suction of UHPFRC, as compared to good quality conventional concrete or engineered cementitious composites (ECC).
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spelling Influence of micro-cracking on capillary water absorption of an UHPFRCCapillary suctionCrackingUHPFRCThe aim of this research was to investigate the influence of cracking on water transport by capillary suction in UHPFRC. Specimens were firstly pre-loaded under four-point bending up to a wide range of pre-defined crack open displacement. Crack pattern created was characterized (width, number of cracks) before capillarity testing. Test results showed that micro cracks induced by previous loading significantly increased the sorptivity comparing with non-cracked specimens. However, increasing the damage (COD of 200 up to 400 ?m), did not significantly compromise the absorption capillary suction of UHPFRC, as compared to good quality conventional concrete or engineered cementitious composites (ECC).Project POCI-01-0145-FEDER-007457 - CONSTRUCT - Institute of R&D In Structures and Construction and by project POCI-01-0145-FEDER-007633 (ISISE) funded by FEDER funds through COMPETE2020 - Programa Operacional Competitividade e Internacionalização (POCI) – and by national funds through FCT - Fundação para a Ciência e a Tecnologia through the PhD scholarship PD/BD/113636/2015, attributed within the Doctoral Program in Eco-Efficient Construction and Rehabilitation (EcoCoRe). Acknowledgements are also due to Secil, EUROMODAL, Omya-Comital, Dramix and Sika for supplying constituent materialsinfo:eu-repo/semantics/publishedVersionRILEM PublicationsUniversidade do MinhoMatos, A. M.Nunes, S.Aguiar, J. L. Barroso de2018-102018-10-01T00:00:00Zconference paperinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/1822/58990engMatos A. M., Nunes S., Aguiar J. B. (2018) Influence of micro-cracking on capillary water absorption of an UHPFRC, International Conference on Interdisciplinary Approaches for Cement-based Materials and Structural Concrete (SynerCrete’18), pp. 963-968, doi: 10.5281/zenodo.1405563978-2-35158-202-2978-2-35158-203-9https://synercrete.com/#proceedingsinfo:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2024-05-11T06:22:25Zoai:repositorium.sdum.uminho.pt:1822/58990Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-28T15:51:18.300455Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse
dc.title.none.fl_str_mv Influence of micro-cracking on capillary water absorption of an UHPFRC
title Influence of micro-cracking on capillary water absorption of an UHPFRC
spellingShingle Influence of micro-cracking on capillary water absorption of an UHPFRC
Matos, A. M.
Capillary suction
Cracking
UHPFRC
title_short Influence of micro-cracking on capillary water absorption of an UHPFRC
title_full Influence of micro-cracking on capillary water absorption of an UHPFRC
title_fullStr Influence of micro-cracking on capillary water absorption of an UHPFRC
title_full_unstemmed Influence of micro-cracking on capillary water absorption of an UHPFRC
title_sort Influence of micro-cracking on capillary water absorption of an UHPFRC
author Matos, A. M.
author_facet Matos, A. M.
Nunes, S.
Aguiar, J. L. Barroso de
author_role author
author2 Nunes, S.
Aguiar, J. L. Barroso de
author2_role author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Matos, A. M.
Nunes, S.
Aguiar, J. L. Barroso de
dc.subject.por.fl_str_mv Capillary suction
Cracking
UHPFRC
topic Capillary suction
Cracking
UHPFRC
description The aim of this research was to investigate the influence of cracking on water transport by capillary suction in UHPFRC. Specimens were firstly pre-loaded under four-point bending up to a wide range of pre-defined crack open displacement. Crack pattern created was characterized (width, number of cracks) before capillarity testing. Test results showed that micro cracks induced by previous loading significantly increased the sorptivity comparing with non-cracked specimens. However, increasing the damage (COD of 200 up to 400 ?m), did not significantly compromise the absorption capillary suction of UHPFRC, as compared to good quality conventional concrete or engineered cementitious composites (ECC).
publishDate 2018
dc.date.none.fl_str_mv 2018-10
2018-10-01T00:00:00Z
dc.type.driver.fl_str_mv conference paper
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://hdl.handle.net/1822/58990
url https://hdl.handle.net/1822/58990
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Matos A. M., Nunes S., Aguiar J. B. (2018) Influence of micro-cracking on capillary water absorption of an UHPFRC, International Conference on Interdisciplinary Approaches for Cement-based Materials and Structural Concrete (SynerCrete’18), pp. 963-968, doi: 10.5281/zenodo.1405563
978-2-35158-202-2
978-2-35158-203-9
https://synercrete.com/#proceedings
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 RILEM Publications
publisher.none.fl_str_mv RILEM Publications
dc.source.none.fl_str_mv reponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron:RCAAP
instname_str FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron_str RCAAP
institution RCAAP
reponame_str Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
collection Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
repository.name.fl_str_mv Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
repository.mail.fl_str_mv info@rcaap.pt
_version_ 1833595581296017409

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