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INFLUENCE OF CONCRETE DENSITY AND STRENGTH ON THE BOND STRENGTH OF COMPOSITE MEMBERS

2013Comunicação em conferência Acesso aberto
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datacite.subject.fosEngenharia e Tecnologia::Engenharia Civil
datacite.subject.fosEngenharia e Tecnologia::Engenharia dos Materiais
datacite.subject.sdg03:Saúde de Qualidade
datacite.subject.sdg07:Energias Renováveis e Acessíveis
datacite.subject.sdg11:Cidades e Comunidades Sustentáveis
dc.contributor.authorSaldanha, Rui
dc.contributor.authorSantos, Pedro
dc.contributor.authorJúlio, Eduardo
dc.date.accessioned2026-03-17T15:27:17Z
dc.date.available2026-03-17T15:27:17Z
dc.date.issued2013
dc.description.abstractThe present paper addresses the influence of both material density and strength in the adhesion between concrete layers cast at different ages. A Normal Oensity Concrete (NOC), a LightWeight Aggregate Concrete (LWAC) and an Ultra High Durability Concrete (UHDC) were considered. The latter is characterized by presenting enhanced durability properties. Nevertheless, the production of the UHDC presents both economical and environmental disadvantages. In order to minimize the impact of its use and, simultaneously, take advantage of its properties, it is proposed to use it only in the cover layer of structural members, being the bulk produced in ordinary concrete. An experimental study was conducted to characterize the adhesion between UHDC/NOC and UHDC/LWAC by means of the Modified Slant Shear Test (M-SST). This new bond test was developed by the authors to always ensure adhesive failures in composite specimens. Two different surface conditions were selected for the interface: i) smooth surface, as-cast against steel formwork; and ii) surface obtained by casting against a plastic wavy formwork. Experimental results are discussed and conclusions are drawn.eng
dc.description.sponsorshipThis research project has been funded by the Portuguese Science and Technology Foundation (FCT) with reference PTDC/ECM/098497/2008. Acknowledgments are extended to the companies SIKA and SECIL for their collaboration.
dc.identifier.citationSaldanha, R., Santos, P., & Júlio, E. (2013). Influence of concrete density and Strength on the bond strength of composite members. In Conference Fib Symposium–Engineering a Concrete Future: Technology, Modeling and Construction Proceedings. Tel-Aviv, Israel: fib.
dc.identifier.isbn978-965920390-1
dc.identifier.urihttp://hdl.handle.net/10400.8/15899
dc.language.isoeng
dc.peerreviewedyes
dc.publisherlsraeli Association of Construction and lnfrastructure Engineers (IACIE) and Faculty of Civil and Environmental Engineering, Technion - lsrael lnstitute of Technology
dc.rights.uriN/A
dc.subjectAdhesion
dc.subjectBond
dc.subjectConcrete
dc.subjectInterface
dc.subjectUltra High Durability Concrete (UHDC)
dc.titleINFLUENCE OF CONCRETE DENSITY AND STRENGTH ON THE BOND STRENGTH OF COMPOSITE MEMBERSeng
dc.typeconference paper
dspace.entity.typePublication
oaire.citation.conferenceDate2013
oaire.citation.conferencePlaceTel-Aviv
oaire.citation.endPage324
oaire.citation.startPage321
oaire.citation.titlefib Symposium TEL-AVIV 2013: Engineering a Concrete Future: Technology, Modeling and Construction, Proceedings
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameSantos
person.givenNamePedro
person.identifier.orcid0000-0001-8193-8399
relation.isAuthorOfPublication2472a851-5aac-47f5-a088-2b276e9bd097
relation.isAuthorOfPublication.latestForDiscovery2472a851-5aac-47f5-a088-2b276e9bd097

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