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Stability of acid volcanic glasses in alkaline solutions: Understanding their potential to participate in the alkali-silica reaction
| dc.creator | Locati, Francisco | |
| dc.creator | Pérez Marfil, Paula M. | |
| dc.creator | Marfil, Silvina A. | |
| dc.creator | Lescano, Leticia | |
| dc.date | 2022-06 | |
| dc.date.accessioned | 2022-09-21T22:03:36Z | |
| dc.date.available | 2022-09-21T22:03:36Z | |
| dc.identifier | http://pa.bibdigital.ucc.edu.ar/3300/1/A_P%C3%A9rez%20Marfil_Marfil_Lescano.pdf | |
| dc.identifier.uri | https://hdl.handle.net/20.500.12032/46154 | |
| dc.description | Experimental laboratory tests were performed using volcanic glasses from Argentina of variable chemical composition and texture, in 1 N KOH, NaOH, Ca(OH)2 and combined NaOH + KOH + Ca(OH)2 solutions, at 40 °C and up to 10 weeks. The initial materials were characterized by petrography, chemical analysis, XRD, FT-IR and DSC-TGA. The reaction progress was evaluated by XRD, and the final products studied by SEM-EDS. The reactivity of the most reactive glass is attributed to a combination of its high porosity/permeability and alteration degree (indirectly assessed by the volatile mass loss up to ~250 °C). The glass silica content and Ca/(Al+Si) ratio could be other factors affecting the glass reactivity; however, more studies are needed to understand the influence of these variables. | |
| dc.description | Fil: Locati, Francisco. CICTERRA (CONICET-UNC); Argentina | |
| dc.description | Fil: Locati, Francisco. Universidad Católica de Córdoba. Faculty of Engineering; Argentina | |
| dc.description | Fil: Pérez Marfil, Paula M. Universidad Nacional del Sur. Geology Department - CGAMA (CIC-UNS); Argentina | |
| dc.description | Fil: Marfil, Silvina A. Universidad Nacional del Sur. Geology Department - CGAMA (CIC-UNS); Argentina | |
| dc.description | Fil: Lescano, Leticia. Universidad Nacional del Sur. Geology Department - CGAMA (CIC-UNS); Argentina | |
| dc.format | application/pdf | |
| dc.language | spa | |
| dc.publisher | Elsevier Ltd | |
| dc.relation | http://pa.bibdigital.ucc.edu.ar/3300/ | |
| dc.relation | https://www.sciencedirect.com/science/article/pii/S2352492822003828?via%3Dihub | |
| dc.relation | info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1016/j.mtcomm.2022.103515 | |
| dc.rights | info:eu-repo/semantics/openAccess | |
| dc.rights | https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es | |
| dc.source | Locati, Francisco ORCID: https://orcid.org/0000-0001-9067-1497 <https://orcid.org/0000-0001-9067-1497>, Pérez Marfil, Paula M., Marfil, Silvina A. and Lescano, Leticia (2022) Stability of acid volcanic glasses in alkaline solutions: Understanding their potential to participate in the alkali-silica reaction. Materials Today Communications, 31. ISSN 2352-4928 | |
| dc.subject | Q Ciencia (General) | |
| dc.subject | QD Química | |
| dc.title | Stability of acid volcanic glasses in alkaline solutions: Understanding their potential to participate in the alkali-silica reaction | |
| dc.type | info:eu-repo/semantics/article | |
| dc.type | info:ar-repo/semantics/artículo |
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