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Effect of calcium hydroxide on fresh state behavior of sodium carbonate activated blast furnace slag pastes

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dc.contributor.authorAkturk, Busra
dc.contributor.authorKizilkanat, Ahmet B.
dc.contributor.authorKabay, Nihat
dc.date.accessioned2026-06-27T14:16:31Z
dc.date.issued2019
dc.description.abstractThis study represents the fresh state behavior of Na2CO3-activated ground granulated blast furnace slag (GGBS) pastes. Sodium carbonate (NC) is a suitable activator, though with an extended setting time. To accelerate the hydration process, NC was replaced with sodium hydroxide (NH), then, slaked lime (CH) was used as a carbonate binding agent. This replacement improved the rheological properties, but increased the setting time. The use of 3% CH with GGBS caused a significant decrease in setting time, enabled to set within 6.5 h. The decrement was attributed to the removal of a large amount of dissolved carbonate ions from the fresh state pastes. The NH replacement did not effectively enhance the fresh properties. In the pore solution, the CO32- ion concentration is one of the major parameter that affects the reaction besides other ions released from raw material. (C) 2019 Elsevier Ltd. All rights reserved.en
dc.description.sponsorshipYildiz Technical University Financial Coordination Office for Research Projects, Istanbul, Turkey [2016-05-01-DOP03]
dc.description.urihttps://doi.org/10.1016/j.conbuildmat.2019.03.328
dc.identifier.doi10.1016/j.conbuildmat.2019.03.328
dc.identifier.eissn1879-0526
dc.identifier.endpage399
dc.identifier.issn0950-0618
dc.identifier.startpage388
dc.identifier.urihttps://hdl.handle.net/20.500.14981/58683
dc.identifier.volume212
dc.identifier.wos000471358200037
dc.language.isoeng
dc.publisherELSEVIER SCI LTD
dc.relation.ispartofCONSTRUCTION AND BUILDING MATERIALS
dc.subjectAlkali activated materials
dc.subjectSodium carbonate
dc.subjectSlag
dc.subjectCalcium hydroxide
dc.subjectFresh properties
dc.subjectCarbonate concentration
dc.subjectMECHANICAL-PROPERTIES
dc.subjectPORE SOLUTION
dc.subjectALKALINE ACTIVATION
dc.subjectREACTION-KINETICS
dc.subjectWASTE GLASS
dc.subjectCEMENT
dc.subjectRHEOLOGY
dc.subjectHYDRATION
dc.subjectSTRENGTH
dc.subjectCONCRETE
dc.subjectConstruction & Building Technology
dc.subjectEngineering
dc.subjectMaterials Science
dc.titleEffect of calcium hydroxide on fresh state behavior of sodium carbonate activated blast furnace slag pastes
dc.typeArticle
dspace.entity.typePublication
local.import.sourceWOS

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