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dc.contributor.authorLi, Long-yuan
dc.date.accessioned2018-01-17T08:56:50Z
dc.date.available2018-01-17T08:56:50Z
dc.date.issued2019-02
dc.identifier.issn1751-7605
dc.identifier.issn1751-7605
dc.identifier.urihttp://hdl.handle.net/10026.1/10599
dc.description.abstract

<jats:p> Alkali-activated binders (AABs) are investigated for their potential use as repair materials of Portland cement concrete (PCC). The adhesion characterisation of PCC and repair materials using AAB made from fly ash (FA) and Portland cement (PC) activated with sodium hydroxide and sodium silicate solutions, AAB made from FA and calcium hydroxide (CH) activated with sodium hydroxide and sodium silicate solutions, and commercial repair materials (RMs) have been investigated. Test results show that the AAB with additives gives high bond strength which is similar to the use of RMs. Bond strength between PCC substrate and AAB with additives is improved, due to increased reaction products, especially calcium–silicate–hydrate gel. However, the CH replacement at 15% shows a large amount of calcite resulting in a reduction in bond strength. The failure patterns and fracture interface images of the tested specimens also demonstrate the quality of the developed bond strength. It is shown that the interface zone of PCC substrate and AAB is homogeneous with no visible gap between the two bonding surfaces. It is suggested that the AAB with PC as additive can be used as a repair binding material which not only has high bond strength but is also cost-effective. </jats:p>

dc.format.extent69-79
dc.languageen
dc.language.isoen
dc.publisherThomas Telford
dc.subjectalkali-activated cements
dc.subjectbond
dc.subjectinterfaces
dc.titleADHESION CHARACTERIZATION OF PORTLAND CEMENT CONCRETE AND ALKALI-ACTIVATED BINDERS UNDER DIFFERENT TYPES OF CALCIUM PROMOTERS
dc.typejournal-article
dc.typeJournal Article
plymouth.author-urlhttps://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000456415300003&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=11bb513d99f797142bcfeffcc58ea008
plymouth.issue2
plymouth.volume31
plymouth.publication-statusPublished
plymouth.journalAdvances in Cement Research
dc.identifier.doi10.1680/jadcr.17.00122
plymouth.organisational-group/Plymouth
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering
plymouth.organisational-group/Plymouth/Faculty of Science and Engineering/School of Engineering, Computing and Mathematics
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA
plymouth.organisational-group/Plymouth/REF 2021 Researchers by UoA/UoA12 Engineering
plymouth.organisational-group/Plymouth/Research Groups
plymouth.organisational-group/Plymouth/Research Groups/Marine Institute
plymouth.organisational-group/Plymouth/Users by role
plymouth.organisational-group/Plymouth/Users by role/Academics
dcterms.dateAccepted2017-12-06
dc.identifier.eissn1751-7605
dc.rights.embargoperiodNot known
rioxxterms.funderEuropean Commission
rioxxterms.identifier.projectPartnership for Research in Geopolymer Concretes
rioxxterms.versionofrecord10.1680/jadcr.17.00122
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.typeJournal Article/Review
plymouth.funderPartnership for Research in Geopolymer Concretes::European Commission


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