Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/42059
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Campo DC | Valor | Idioma |
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dc.contributor.author | Benedetti, Andrea | por |
dc.contributor.author | Fernandes, Pedro Miguel Gomes | por |
dc.contributor.author | Granja, José Luís Duarte | por |
dc.contributor.author | Sena-Cruz, José | por |
dc.contributor.author | Azenha, Miguel | por |
dc.date.accessioned | 2016-06-20T12:47:43Z | - |
dc.date.issued | 2016 | - |
dc.identifier.issn | 1359-8368 | por |
dc.identifier.uri | https://hdl.handle.net/1822/42059 | - |
dc.description.abstract | In NSM-CFRP installations, the mechanical behaviour of the strengthening system is strongly influenced by the epoxy adhesive, particularly at early ages. In the present work, the influence of temperature on the curing process of the epoxy was investigated. Three distinct temperatures were studied: 20, 30 and 40 °C. The elastic modulus of the adhesive was monitored through EMM-ARM (Elasticity Modulus Monitoring through Ambient Response Method). Direct pull-out tests with concrete specimens strengthened with NSM CFRP strips were carried out at the same three distinct temperatures to compare the evolution of bond performance with the E-modulus of epoxy since early ages. The results showed that increasing the curing temperature significantly accelerated both the curing process of the epoxy adhesive and the evolution of bond performance. The EMM-ARM technique has revealed its ability in clearly identifying the hardening kinetics of epoxy adhesives, allowing also thermal activation analysis. Finally, existing models for predicting temperature-dependent mechanical properties were extended to also describe the bond behaviour of NSM-CFRP applications. | por |
dc.description.sponsorship | This work is supported by FEDER funds through the Operational Program for Competitiveness Factors - COMPETE and National Funds through FCT - Portuguese Foundation for Science and Technology under the projects FRPreDur FCOMP-01-0124-FEDER-028865 (FCT no. PTDC/ECM-EST/2424/2012) and VisCoDyn FCOMP-01-0124-FEDER-041751 (FCT no. EXPL/ECM- EST/1323/2013). The authors also like to thank all the companies that have been involved supporting and contributing for the development of this study, mainly: S&P Clever Reinforcement Ibérica Lda., Artecanter - Indústria de Transformação de Granitos, Lda., Vialam – Indústrias Metalúrgicas e Metalomecânicas, Lda. The second and third authors also acknowledge the grants SFRH/BD/80338/2011 and SFRH/BD/80682/2011, respectively, provided by FCT. | por |
dc.language.iso | eng | por |
dc.publisher | Elsevier | por |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F80338%2F2011/PT | por |
dc.relation | info:eu-repo/grantAgreement/FCT/SFRH/SFRH%2FBD%2F80682%2F2011/PT | por |
dc.rights | openAccess | - |
dc.subject | Carbon fibre | por |
dc.subject | Theromosetting resin | por |
dc.subject | Cure behaviour | por |
dc.subject | Non-destructive testing | por |
dc.subject | Near-surface mounted reinforcement | por |
dc.subject | A. Carbon fibre | por |
dc.subject | A. Theromosetting resin | por |
dc.subject | B. Cure behaviour | por |
dc.subject | D. Non-destructive testing | por |
dc.title | Influence of temperature on the curing of an epoxy adhesive and its influence on bond behaviour of NSM-CFRP systems | por |
dc.type | article | - |
dc.peerreviewed | yes | por |
sdum.publicationstatus | info:eu-repo/semantics/publishedVersion | por |
oaire.citationStartPage | 219 | por |
oaire.citationEndPage | 229 | por |
oaire.citationTitle | Composites Part B: Engineering | por |
oaire.citationVolume | 89 | por |
dc.identifier.doi | 10.1016/j.compositesb.2015.11.034 | por |
dc.subject.fos | Engenharia e Tecnologia::Engenharia Civil | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | Composites Part B: Engineering | por |
Aparece nas coleções: | ISISE - Artigos em Revistas Internacionais |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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JCOMB-D-15-01555_Revised Manuscript_TO_REP.pdf | 1,5 MB | Adobe PDF | Ver/Abrir |