| Title |
Waste-derived glass-ceramics fired in nitrogen: Stabilization and functionalization |
| ID_Doc |
8350 |
| Authors |
Monich, PR; Romero, AR; Desideri, D; Bernardo, E |
| Title |
Waste-derived glass-ceramics fired in nitrogen: Stabilization and functionalization |
| Year |
2020 |
| Published |
|
| DOI |
10.1016/j.conbuildmat.2019.117265 |
| Abstract |
In a circular economy perspective, waste-derived materials are attractive once the adopted manufacturing technology combines low costs, absolute stabilization of pollutants and interesting functionalities of the product. This paper deals with the enhancement of chemical stability and functionalities of highly porous glass-ceramic foams, from vitreous residues the plasma processing of municipal solid waste ('Plasmastone'), by firing in nitrogen, at 800-1000 degrees C. Before firing, the processing relied on alkali activation of glass suspensions, followed by intensive mechanical stirring. Previous experiments had demonstrated that the stabilization of pollutants could be achieved only by mixing Plasmastone with 30 wt% recycled boro-alumino-silicate glass, in samples fired in air. The change in the atmosphere had a significant impact on the Fe2+/Fe3+ balance, leading to a different phase assemblage, in turn causing the stabilization of pollutants even operating with more common recycled soda-lime glass. The new phase assemblage also promoted functionalities such as electrical conductivity, relative permittivity and electromagnetic shielding effectiveness. (C) 2019 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). |
| Author Keywords |
Gel casting; Alkali activation; Glass ceramics; Foams; Electromagnetic shielding |
| Index Keywords |
Index Keywords |
| Document Type |
Other |
| Open Access |
Open Access |
| Source |
Science Citation Index Expanded (SCI-EXPANDED) |
| EID |
WOS:000513297300042 |
| WoS Category |
Construction & Building Technology; Engineering, Civil; Materials Science, Multidisciplinary |
| Research Area |
Construction & Building Technology; Engineering; Materials Science |
| PDF |
https://doi.org/10.1016/j.conbuildmat.2019.117265
|