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dc.contributor.authorKheradmand, Mohammadpor
dc.contributor.authorAbdollahnejad, Zahrapor
dc.contributor.authorTorgal, Fernando Manuel Alves Silva Pachecopor
dc.date.accessioned2017-07-17T09:30:09Z-
dc.date.issued2017-06-
dc.date.submitted2016-10-
dc.identifier.citationKheradmand M., Abdollahnejad Z., Pacheco-Torgal F. Shrinkage Performance of Fly Ash Alkali-activated Cement Based Binder Mortars, KSCE Journal of Civil Engineering, Vol. 1, pp. 1-11, 1976-3808 (online) ; 1226-7988(print), 2017por
dc.identifier.issn1226-7988por
dc.identifier.urihttp://hdl.handle.net/1822/46201-
dc.description.abstractSome authors reported that Alkali-activated Cement Based Binder (AACB) mortars can have much higher drying shrinkage than Portland cement based composites. Its worth remember that shrinkage performance is a very important property for reinforced concrete composites just because a high shrinkage performance is associated to cracking tendency that leads to future durability problems. Usually shrinkage is assessed under unrestrained conditions. However, the use of a restrained ellipse ring test is especially interesting for materials that will be used in restrained conditions like repair mortars. This paper provides results on restrained and unrestrained shrinkage performance of fly ash AACB mortars. The restrained shrinkage was assessed with an elliptical ring that provides a faster and more reliable assessment of the cracking potential than circular rings. The results show that the mixtures with lower sodium silicate content are associated to a lower unrestrained shrinkage. Mixtures with lower sodium silicate content showed reduced average crack width under restrained conditions. The results also show that the reduction of sodium silicate content delays the appearance of cracks and is also associated to lower crack width. The use of AACB mortars in restrained conditions requires the use of a reduced sodium silicate content or else the use of fibres to prevent crack appearance.por
dc.description.sponsorshipFoundation for Science and Technology (FCT): IF/00706/2014-UM.2.15por
dc.language.isoengpor
dc.publisherSpringer Verlagpor
dc.rightsembargoedAccess (6 Months)por
dc.subjectAACB mortarspor
dc.subjectCapillary water absorptionpor
dc.subjectFly ashpor
dc.subjectShrinkagepor
dc.subjectWaste reusepor
dc.titleShrinkage performance of fly ash alkali-activated cement based binder mortarspor
dc.typearticle-
dc.peerreviewedyespor
dc.commentshttp://ctac.uminho.pt/node/2459por
degois.publication.firstPage1por
degois.publication.lastPage11por
degois.publication.titleKSCE Journal of Civil Engineeringpor
dc.date.updated2017-07-17T09:16:17Z-
dc.identifier.essn1976-3808por
dc.identifier.doi10.1007/s12205-017-1714-3-
dc.date.embargo2018-01-01-
dc.subject.fosEngenharia e Tecnologia::Engenharia Civilpor
dc.description.publicationversioninfo:eu-repo/semantics/acceptedVersionpor
sdum.journalKsce Journal of Civil Engineeringpor
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