Influence of water to binder ratio on the rheology and structural Build-up of Alkali-Activated Slag/Fly ash mixtures
dc.authorid | Dai, Xiaodi/0000-0002-6260-7786 | |
dc.authorwosid | Dai, Xiaodi/HNC-1504-2023 | |
dc.authorwosid | aydın, serdar/AAA-2821-2022 | |
dc.authorwosid | Yardimci, Mert Yucel/AAN-8109-2021 | |
dc.authorwosid | Yardimci, Mert/AAD-1942-2021 | |
dc.contributor.author | Yardımcı, Mert Yücel | |
dc.contributor.author | Aydin, Serdar | |
dc.contributor.author | Yardimci, Mert Yucel | |
dc.contributor.author | Lesage, Karel | |
dc.contributor.author | de Schutter, Geert | |
dc.contributor.other | İnşaat Mühendisliği / Civil Engineering | |
dc.date.accessioned | 2024-05-25T11:42:21Z | |
dc.date.available | 2024-05-25T11:42:21Z | |
dc.date.issued | 2020 | |
dc.department | Okan University | en_US |
dc.department-temp | [Dai, Xiaodi; Aydin, Serdar; Yardimci, Mert Yucel; Lesage, Karel; de Schutter, Geert] Univ Ghent, Magnel Vandepitte Lab, Dept Struct Engn & Bldg Mat, Ghent, Belgium; [Aydin, Serdar] Dokuz Eylul Univ, Dept Civil Engn, TR-35160 Izmir, Turkey; [Yardimci, Mert Yucel] Istanbul Okan Univ, Dept Civil Engn, Tuzla Campus, TR-34959 Istanbul, Turkey | en_US |
dc.description | Dai, Xiaodi/0000-0002-6260-7786 | en_US |
dc.description.abstract | In this study, the effects of water to binder (w/b) ratio on the rheological and fresh state properties of alkali-activated cement (AAC) pastes have been investigated. A mixture of 50% type F fly ash (FA) and 50% ground granulated blast furnace slag (GGBFS) was activated by a mixture of sodium hydroxide and sodium silicate, in three different w/b ratios of 0.32, 0.37 and 0.42. Setting time, ultrasonic pulse velocity (UPV), heat evolution by isothermal calorimetry, flow spread by mini-slump test, rheological properties by means of flow curve and viscoelastic properties such as storage modulus (G') and loss factor (G '') were determined on the paste mixtures. The results showed that the higher w/b ratio led to structural build-up with higher rate compared to lower w/b ratios. GGBFS provided the main contribution to the increase of storage modulus in the early stage of hybrid mixture of GGBFS and FA. The dynamic yield stress, plastic viscosity and thixotropic index values decrease with an increase in w/b ratio of AAC mixture. The setting times of AAC mixtures were found to be less dependent on the w/b ratio as compared to ordinary Portland cement mixtures. (C) 2020 Elsevier Ltd. All rights reserved. | en_US |
dc.description.sponsorship | FWO-EOS project 'INTERdisciplinary multiscale Assessment of a new generation of Concrete with alkali-activated maTerials' (INTERACT) [30439691]; FWO-EOS | en_US |
dc.description.sponsorship | This paper is the result of 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.citation | 69 | |
dc.identifier.doi | 10.1016/j.conbuildmat.2020.120253 | |
dc.identifier.issn | 0950-0618 | |
dc.identifier.issn | 1879-0526 | |
dc.identifier.scopusquality | Q1 | |
dc.identifier.uri | https://doi.org/10.1016/j.conbuildmat.2020.120253 | |
dc.identifier.uri | https://hdl.handle.net/20.500.14517/1589 | |
dc.identifier.volume | 264 | en_US |
dc.identifier.wos | WOS:000585942300063 | |
dc.identifier.wosquality | Q1 | |
dc.language.iso | en | |
dc.publisher | Elsevier Sci Ltd | en_US |
dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
dc.rights | info:eu-repo/semantics/closedAccess | en_US |
dc.subject | Alkali-Activated Cement | en_US |
dc.subject | Rheology | en_US |
dc.subject | Storage modulus | en_US |
dc.subject | Fly ash | en_US |
dc.subject | Ground Granulated Blast Furnace Slag | en_US |
dc.subject | Pore solution chemistry | en_US |
dc.title | Influence of water to binder ratio on the rheology and structural Build-up of Alkali-Activated Slag/Fly ash mixtures | en_US |
dc.type | Article | en_US |
dspace.entity.type | Publication | |
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