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dc.contributor.authorChaliasou, Napoleana-Anna
dc.contributor.authorHeath, Andrew
dc.contributor.authorPaine, Kevin
dc.date.accessioned2022-01-06T16:00:03Z
dc.date.available2022-01-06T16:00:03Z
dc.date.issued2016-04-30
dc.identifier.citationChaliasou , N-A , Heath , A & Paine , K 2016 , ' Recycling of fly ash-slag Geopolymer binder in mortar mixes ' , Paper presented at Young Researchers' Forum III , London , United Kingdom , 12/04/16 - 12/04/16 .
dc.identifier.citationconference
dc.identifier.otherPURE: 17622007
dc.identifier.otherPURE UUID: 5f920b7c-ca5e-4817-b8d9-b7f407a250bd
dc.identifier.otherORCID: /0000-0002-6173-0328/work/105912446
dc.identifier.urihttp://hdl.handle.net/2299/25288
dc.description© 2022 Imperial College London.
dc.description.abstractFly ash-slag based Geopolymer cement (GPC) has demonstrated mechanical properties and environmental advantages that make it one of predominant sustainable alternatives to Portland cement (PC). Despite the fact that numerous environmental analyses about geopolymers are being published, their environmental impact after the end of service-life has barely been explored. Given that construction-waste management is a major sustainability issue, the present study is investigating the potential of recycling fly ash-slag GPC as a fine aggregate in mortar mixes. The major physical properties of the fine recycled aggregates (FRA) were tested and compared to those of PC FRA and natural sand of similar fineness. The effect of incorporating FRA in low (25%) and high (50%) percentage in PC or GPC matrix mortars was investigated. The 28day compressive and flexural strength of mortars were tested. Also the 28day water absorption and flow of mixes incorporating GPC FRA were recorded. GPC FRA exhibited properties similar to those of PC FRA and poorer than those of natural sand. The results of compressive and flexural strength proved that FRA addition had a negligible effect in all cases. The influence of the high water absorption of GPC FRA, relatively to that of natural sand, was prominent on the workability of fresh mixes and possibly affected the water absorption of mortar prisms. The effect of GPC FRA proved to be similar to that of PC FRA on compressive strength, while none of the tested mortar properties appeared to be jeopardised by the incorporation of the GPC FRA in the mixen
dc.format.extent4
dc.language.isoeng
dc.rightsOpen
dc.subjectGeopolymers
dc.subjectRecycled aggregates
dc.subjectFly ash
dc.titleRecycling of fly ash-slag Geopolymer binder in mortar mixesen
dc.contributor.institutionDepartment of Engineering and Technology
dc.contributor.institutionSchool of Physics, Engineering & Computer Science
dc.contributor.institutionMaterials and Structures
dc.description.statusPeer reviewed
dc.relation.schoolSchool of Physics, Engineering & Computer Science
dc.description.versiontypeFinal Published version
dcterms.dateAccepted2016-04-30
rioxxterms.versionVoR
rioxxterms.licenseref.urihttp://creativecommons.org/licenses/by-nd/4.0/
rioxxterms.typeOther
herts.preservation.rarelyaccessedtrue
herts.rights.accesstypeOpen


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