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dc.contributor.authorLeong, Hsiao Yun
dc.contributor.authorOng, Dominic Ek Leong
dc.contributor.authorSanjayan, Jay G
dc.contributor.authorNazari, Ali
dc.date.accessioned2019-05-29T12:34:48Z
dc.date.available2019-05-29T12:34:48Z
dc.date.issued2018
dc.identifier.issn0899-1561
dc.identifier.doi10.1061/(ASCE)MT.1943-5533.0002363
dc.identifier.urihttp://hdl.handle.net/10072/380182
dc.description.abstractIn this study, fly ash was added to residual soil to produce soil–fly ash geopolymer bricks. This study investigated the effects of fly ash/soil, alkali activator/ash, Na2SiO3/KOH (or NaOH), additional water content, curing condition, and curing temperature on the compressive strength of soil–fly ash geopolymer. The results showed that the optimum compressive strength was obtained when the ratios of alkali activator/ash, Na2SiO3/KOH (or NaOH) and additional water were 0.6, 0.5, and 10% respectively. A higher amount of alkali activators was required for strength development in soil–ly ash geopolymer than conventional fly ash-based geopolymers. The formation of the rigid structure at low ratios of alkali activator/ash and Na2SiO3/KOH (or NaOH) was unlikely. Compressive strength decreased when additional water was increased. High curing temperature and long curing duration showed a negative effect on strength development. The compressive strength of the soil–fly ash geopolymer varied as different mixing sequences of raw materials were used, indicating the importance of the formation of geopolymer gel in the structure. Compressive strength results obtained in this study demonstrate that soil–fly ash geopolymer can be a potential alternative to traditional clay-fired brick.
dc.description.peerreviewedYes
dc.languageEnglish
dc.language.isoeng
dc.publisherAmerican Society of Civil Engineers
dc.publisher.placeUnited States
dc.relation.ispartofchapter4018171
dc.relation.ispartofpagefrom1
dc.relation.ispartofpageto15
dc.relation.ispartofissue8
dc.relation.ispartofjournalJournal of Materials in Civil Engineering
dc.relation.ispartofvolume30
dc.subject.fieldofresearchPolymerisation mechanisms
dc.subject.fieldofresearchCivil engineering
dc.subject.fieldofresearchConstruction materials
dc.subject.fieldofresearchMaterials engineering
dc.subject.fieldofresearchFunctional materials
dc.subject.fieldofresearchcode340306
dc.subject.fieldofresearchcode4005
dc.subject.fieldofresearchcode400505
dc.subject.fieldofresearchcode4016
dc.subject.fieldofresearchcode401605
dc.titleStrength Development of Soil-Fly Ash Geopolymer: Assessment of Soil, Fly Ash, Alkali Activators, and Water
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
dc.description.versionVersion of Record (VoR)
gro.rights.copyright© 2018 American Society of Civil Engineers (ASCE). This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
gro.hasfulltextFull Text
gro.griffith.authorOng, Dominic E.L.


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