Ιδρυματικό Αποθετήριο
Πολυτεχνείο Κρήτης
Πολυτεχνείο Κρήτης
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| URI | http://purl.tuc.gr/dl/dias/ED5CE9B4-86B2-4178-9AE9-97907967B2AD | - |
| Αναγνωριστικό | https://doi.org/doi:10.3390/min9110714 | - |
| Γλώσσα | en | - |
| Μέγεθος | 5 megabytes | en |
| Τίτλος | Grinding kinetics of slag and effect of final particle size on the compressive strength of alkali activated materials | en |
| Δημιουργός | Komnitsas Konstantinos | en |
| Δημιουργός | Κομνιτσας Κωνσταντινος | el |
| Δημιουργός | Karmali Vasiliki | en |
| Δημιουργός | Καρμαλη Βασιλικη | el |
| Δημιουργός | Petrakis Evaggelos | en |
| Δημιουργός | Πετρακης Ευαγγελος | el |
| Δημιουργός | Bartzas Georgios | en |
| Εκδότης | MDPI | en |
| Περιγραφή | Journal paper | el |
| Περίληψη | This study aims to model grinding of a Polish ferronickel slag and evaluate the particle size distributions (PSDs) of the products obtained after different grinding times. Then, selected products were alkali-activated in order to investigate the effect of particle size on the compressive strength of the produced alkali-activated materials (AAMs). Other parameters affecting alkali activation, i.e., temperature, curing, and ageing time were also examined. Among the different mathematical models used to simulate the particle size distribution, Rosin–Rammler (RR) was found to be the most suitable. When piecewise regression analysis was applied to experimental data it was found that the particle size distribution of the slag products exhibits multifractal character. In addition, grinding of slag exhibits non-first-order behavior and the reduction rate of each size is time-dependent. The grinding rate and consequently the grinding efficiency increases when the particle size increases, but drops sharply near zero after prolonged grinding periods. Regarding alkali activation, it is deduced that among the parameters studied, particle size (and the respective specific surface area) of the raw slag product and curing temperature have the most noticeable impact on the compressive strength of the produced AAMs. | en |
| Τύπος | Peer-Reviewed Journal Publication | en |
| Τύπος | Δημοσίευση σε Περιοδικό με Κριτές | el |
| Άδεια Χρήσης | http://creativecommons.org/licenses/by/4.0/ | en |
| Ημερομηνία | 2020-03-24 | - |
| Ημερομηνία Δημοσίευσης | 2019 | - |
| Θεματική Κατηγορία | Particle size distribution | en |
| Θεματική Κατηγορία | Grinding kinetics | en |
| Θεματική Κατηγορία | Slag | en |
| Θεματική Κατηγορία | Alkali activated materials | en |
| Θεματική Κατηγορία | Compressive strength | en |
| Βιβλιογραφική Αναφορά | E. Petrakis, V. Karmali, G. Bartzas and K. Komnitsas, "Grinding kinetics of slag and effect of final particle size on the compressive strength of alkali-activated materials," Minerals, vol. 9, no. 11, pp. 1-21, Nov. 2019. doi: 10.3390/min9110714 | en |
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