Ιδρυματικό Αποθετήριο
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| URI | http://purl.tuc.gr/dl/dias/E8F89EDD-40E3-49B6-AA65-E11C8F4C78F0 | - |
| Αναγνωριστικό | https://doi.org/10.3390/min9090551 | - |
| Αναγνωριστικό | https://www.mdpi.com/2075-163X/9/9/551/htm | - |
| Γλώσσα | en | - |
| Μέγεθος | 16 pages | en |
| Τίτλος | Properties of inorganic polymers produced from brick waste and metallurgical slag | en |
| Δημιουργός | Soultana Athanasia | en |
| Δημιουργός | Σουλτανα Αθανασια | el |
| Δημιουργός | Valouma Aikaterini | en |
| Δημιουργός | Βαλουμα Αικατερινη | el |
| Δημιουργός | Bartzas Georgios | en |
| Δημιουργός | Komnitsas Konstantinos | en |
| Δημιουργός | Κομνιτσας Κωνσταντινος | el |
| Εκδότης | MDPI | en |
| Περίληψη | This paper explores the alkali activation potential of brick wastes and metallurgical slags. Inorganic polymers (IPs) were produced using an alkaline medium consisting of sodium hydroxide and sodium silicate solutions and the optimum synthesis conditions were determined. In this context, the variable parameters, such as solid to liquid (S/L) ratio, curing temperature (60, 80 and 90 °C) and ageing time (7 and 28 days) on the compressive strength and the morphology of the produced IPs were investigated. Specimens produced under the optimum synthesis conditions were subjected to high temperature firing and immersed in distilled water and acidic solutions for various periods of time, in order to assess their durability and structural integrity. The results showed that the IPs produced using a mix ratio of 50 wt % metallurgical slag and 50 wt % brick wastes, cured at 90 °C and aged for 7 days obtained the highest compressive strength (48.9 MPa). X-ray fluorescence analysis (XRF), particle size analysis, Fourier transform infrared spectroscopy (FTIR), mineralogical analysis (XRD), mercury intrusion porosimetry (MIP), scanning electron microscopy (SEM) and thermogravimetric (TG) analysis also confirmed the optimum microstructural characteristics and the chemical reactions that took place during synthesis. The overall results of this study indicate that the co-valorization of different waste streams, which are produced in large quantities and cause environmental problems if not properly managed, is a viable alternative for the production of binders or secondary construction materials with higher added value. | 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 | 2020-04-23 | - |
| Ημερομηνία Δημοσίευσης | 2019 | - |
| Θεματική Κατηγορία | Brick waste | en |
| Θεματική Κατηγορία | Compressive strength | en |
| Θεματική Κατηγορία | Inorganic polymers (IPs) | en |
| Θεματική Κατηγορία | Metallurgical slag | en |
| Βιβλιογραφική Αναφορά | A. Soultana, A. Valouma, G. Bartzas and K. Komnitsas, "Properties of inorganic polymers produced from brick waste and metallurgical slag," Minerals, vol. 9, no. 9, Sept. 2019. doi: 10.3390/min9090551 | en |
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