Rheology and structural build-up of sodium silicate- and sodium hydroxide-activated GGBFS mixtures

dc.authorscopusid57218222878
dc.authorscopusid8396418200
dc.authorscopusid16029975300
dc.authorscopusid57202918369
dc.authorwosidaydın, serdar/AAA-2821-2022
dc.authorwosidYardimci, Mert Yucel/AAN-8109-2021
dc.authorwosidDai, Xiaodi/HNC-1504-2023
dc.contributor.authorYardımcı, Mert Yücel
dc.contributor.authorAydin, Serdar
dc.contributor.authorYardimci, Mert Yuecel
dc.contributor.authorDe Schutter, Geert
dc.contributor.otherİnşaat Mühendisliği / Civil Engineering
dc.date.accessioned2024-05-25T11:25:38Z
dc.date.available2024-05-25T11:25:38Z
dc.date.issued2022
dc.departmentOkan Universityen_US
dc.department-temp[Dai, Xiaodi; Yardimci, Mert Yuecel; De Schutter, Geert] Univ Ghent, Dept Struct Engn & Bldg Mat, Magnel Vandepitte Lab, B-9052 Ghent, Belgium; [Aydin, Serdar] Dokuz Eylul Univ, Dept Civil Engn, TR-35160 Izmir, Turkey; [Yardimci, Mert Yuecel] Istanbul Okan Univ, Dept Civil Engn, Buca, TR-34959 Istanbul, Turkeyen_US
dc.description.abstractAlkali-activated slag cements (AAS) are considered as an alternative to portland cement (PC) in many studies. A significant number of studies have focused on their mechanical and durability properties, but very few studies have concentrated on their rheological behavior. In this study, the effects of sodium silicate and sodium hydroxide on the rheological properties and structural build-up of alkali-activated GGBFS mixtures have been investigated. The sodium silicate-activated GGBFS mixtures exhibited a lower yield stress and a higher plastic viscosity than sodium hydroxide-activated GGBFS mixtures. The small-amplitude oscillatory shear (SAOS) tests indicated a negligible colloidal interaction between GGBFS particles in sodium silicate-activated system; therefore, the early increase in structuration was associated with the formation of reaction products due to the interaction between the dissolved calcium ions and the silicates originated from the activator solution. On the other hand, the stiffness and the early increase in structural build-up of sodium hydroxide-activated GGBFS system were attributed to the formation of well-percolated network.en_US
dc.description.sponsorshipFWO-EOS project [30439691]en_US
dc.description.sponsorshipThis paper is a scientific output of the research actions performed in the framework of the FWO-EOS project 30439691 'INTERdisciplinary multiscale Assessment of a new generation of Concrete with alkali-activated maTerials' (INTERACT) . The financial support by FWO-EOS is gratefully acknowledged.en_US
dc.identifier.citation28
dc.identifier.doi10.1016/j.cemconcomp.2022.104570
dc.identifier.issn0958-9465
dc.identifier.issn1873-393X
dc.identifier.scopus2-s2.0-85129659455
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.cemconcomp.2022.104570
dc.identifier.urihttps://hdl.handle.net/20.500.14517/924
dc.identifier.volume131en_US
dc.identifier.wosWOS:000802166900003
dc.identifier.wosqualityQ1
dc.language.isoen
dc.publisherElsevier Sci Ltden_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectSodium hydroxideen_US
dc.subjectSodium silicateen_US
dc.subjectAlkali-activated slag cementsen_US
dc.subjectRheologyen_US
dc.subjectStructural build-upen_US
dc.titleRheology and structural build-up of sodium silicate- and sodium hydroxide-activated GGBFS mixturesen_US
dc.typeArticleen_US
dspace.entity.typePublication
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