Investigation of Hydration Temperature of Alkali Activated Slag Based Concrete

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dc.contributor.authorAkçaözoğlu K.
dc.contributor.authorAkçaözoğlu S.
dc.contributor.authorAçıkgöz A.
dc.date.accessioned2019-08-01T13:38:39Z
dc.date.available2019-08-01T13:38:39Z
dc.date.issued2018
dc.departmentNiğde ÖHÜ
dc.description.abstractThis paper presents the results of an investigation on the effect of activator type, binder amount and sodium dosage on hydration heats of Alkali-Activated Slag (AAS) concrete. For the slag activation, sodium hydroxide (NaOH) pellets and the mixture of NaOH+liquid sodium silicate (Na2SiO3) were used at three sodium concentrations, 4%, 6% and 8% by mass of slag. Twenty one different mixtures were prepared for the laboratory tests. In the reference three mixtures, OPC was used as binder and in the other AAS mixtures Granulated Blast Furnace Slag (GBFS) was used. The binder dosages were 300, 350 and 400 kg/m3 and the waterbinder (w/b) ratio used in the mixtures was 0.50. The compressive strength and hydration temperature of produced concretes were measured. The temperature change of specimens measured in every 15 minutes until 120 hours. The test results showed that, the compressive strengths and hydration temperatures of the mixtures increased depending on increasing binder amount and sodium dosage. The use of NaOH+Na2SiO3 mixture as activator increased compressive strength but decreased hydration temperature of the mixtures. The hydration temperatures of all AAS mixtures were lower than OPC mixtures. Produced AAS concrete with low hydration temperature can be an alternative in recycled construction material at mass concrete applications. © 2017, Korean Society of Civil Engineers.
dc.identifier.doi10.1007/s12205-017-0219-4
dc.identifier.endpage3002
dc.identifier.issn1226-7988
dc.identifier.issue8
dc.identifier.scopus2-s2.0-85033493151
dc.identifier.scopusqualityQ2
dc.identifier.startpage2994
dc.identifier.urihttps://dx.doi.org/10.1007/s12205-017-0219-4
dc.identifier.urihttps://hdl.handle.net/11480/1624
dc.identifier.volume22
dc.identifier.wosWOS:000439197500034
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthor[0-Belirlenecek]
dc.language.isoen
dc.publisherSpringer Verlag
dc.relation.ispartofKSCE Journal of Civil Engineering
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectalkali activated slag
dc.subjectby-product
dc.subjectcompressive strength
dc.subjectconcrete
dc.subjectGBFS
dc.subjecthydration temperature
dc.titleInvestigation of Hydration Temperature of Alkali Activated Slag Based Concrete
dc.typeArticle

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