Institutional Repository
Technical University of Crete
EN  |  EL

Search

Browse

My Space

Assessment of alkali activation potential of a Polish ferronickel slag

Komnitsas Konstantinos, Petrakis Evaggelos, Karmali Vasiliki, Bartzas Georgios, Kurylak, Witold, Pietek Grzegorz , Kanasiewicz Jarosław

Simple record


URIhttp://purl.tuc.gr/dl/dias/FAA8F3BE-8CAC-4CFE-B825-95E4767D4829-
Identifierhttps://doi.org/10.3390/su11071863-
Identifierhttps://www.mdpi.com/2071-1050/11/7/1863-
Languageen-
Extent3 megabytesen
Extent16 pagesen
TitleAssessment of alkali activation potential of a Polish ferronickel slagen
CreatorKomnitsas Konstantinosen
CreatorΚομνιτσας Κωνσταντινοςel
CreatorPetrakis Evaggelosen
CreatorΠετρακης Ευαγγελοςel
CreatorKarmali Vasilikien
CreatorΚαρμαλη Βασιλικηel
CreatorBartzas Georgiosen
CreatorKurylak, Witolden
CreatorPietek Grzegorz en
CreatorKanasiewicz Jarosław en
PublisherMDPIen
DescriptionResearch paperen
Content SummaryIn this study, the alkali activation potential of a Polish ferronickel slag (PS), for the production of inorganic polymers (IPs), is investigated. The effect of the main synthesis parameters, i.e., strength of the activating solution, consisting of NaOH and Na2SiO3 solutions and affecting (SiO2 + Al2O3)/Na2O and other important molar ratios in the reactive paste, pre-curing period, curing temperature and time and ageing period was investigated. The structural integrity of the produced specimens was tested after their (i) immersion in distilled water and acidic solutions for a period of 7–30 days, and (ii) firing at temperatures between 200 C and 1000 C. Several analytical techniques including X-ray diffraction, X-ray fluorescence, Fourier transform infrared spectroscopy, Differential scanning analysis-Thermogravimetry and Scanning Electron Microscopy were used for the characterization of the produced IPs. Results show that under the optimum synthesis conditions the IPs obtain compressive strength that exceeds 65 MPa. An innovative aspect of this study is that after heating at 400 C, the specimens acquire compressive strength of 115 MPa and this indicates that they can be also used as fire resistant materials. This study highlights the potential of alkali activation for the valorization of a ferronickel slag and the production of IPs that can be used as binders or in several construction applications, thus improving the sustainability of the metallurgical sector.en
Type of ItemPeer-Reviewed Journal Publicationen
Type of ItemΔημοσίευση σε Περιοδικό με Κριτέςel
Licensehttp://creativecommons.org/licenses/by/4.0/en
Date of Item2019-03-29-
Date of Publication2019-
SubjectWaste managementen
SubjectWaste valorizationen
SubjectFerronickel slagen
SubjectAlkali activationen
SubjectCompressive strengthen
SubjectMorphologyen
Bibliographic CitationK. Komnitsas, G. Bartzas, V. Karmali, E. Petrakis, W. Kurylak, G. Pietek and J. Kanasiewicz, "Assessment of alkali activation potential of a Polish ferronickel slag," Sustainability, vol. 11, no. 7, Mar. 2019. doi: 10.3390/su11071863en

Available Files

Services

Statistics