Stability of acid volcanic glasses in alkaline solutions: Understanding their potential to participate in the alkali-silica reaction

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 analy...

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Autores principales: Locati, Francisco, Pérez Marfil, Paula M., Marfil, Silvina A., Lescano, Leticia
Formato: Artículo
Lenguaje:Español
Publicado: Elsevier Ltd 2022
Materias:
Q Ciencia (General)
QD Química
Acceso en línea:http://pa.bibdigital.ucc.edu.ar/3300/1/A_P%C3%A9rez%20Marfil_Marfil_Lescano.pdf
Aporte de:
Producción Académica Universidad Católica de Córdoba (UCCor) de Universidad Católica de Córdoba
id I38-R144-3300
record_format dspace
spelling I38-R144-33002025-04-10T21:38:10Z http://pa.bibdigital.ucc.edu.ar/3300/ Stability of acid volcanic glasses in alkaline solutions: Understanding their potential to participate in the alkali-silica reaction Locati, Francisco Pérez Marfil, Paula M. Marfil, Silvina A. Lescano, Leticia Q Ciencia (General) QD Química 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. Elsevier Ltd 2022-06 info:eu-repo/semantics/article info:eu-repo/semantics/closedAccess application/pdf spa http://pa.bibdigital.ucc.edu.ar/3300/1/A_P%C3%A9rez%20Marfil_Marfil_Lescano.pdf 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 https://www.sciencedirect.com/science/article/pii/S2352492822003828?via%3Dihub info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1016/j.mtcomm.2022.103515
institution Universidad Católica de Córdoba
institution_str I-38
repository_str R-144
collection Producción Académica Universidad Católica de Córdoba (UCCor)
language Español
orig_language_str_mv spa
topic Q Ciencia (General)
QD Química
spellingShingle Q Ciencia (General)
QD Química
Locati, Francisco
Pérez Marfil, Paula M.
Marfil, Silvina A.
Lescano, Leticia
Stability of acid volcanic glasses in alkaline solutions: Understanding their potential to participate in the alkali-silica reaction
topic_facet Q Ciencia (General)
QD Química
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.
format Artículo
author Locati, Francisco
Pérez Marfil, Paula M.
Marfil, Silvina A.
Lescano, Leticia
author_facet Locati, Francisco
Pérez Marfil, Paula M.
Marfil, Silvina A.
Lescano, Leticia
author_sort Locati, Francisco
title Stability of acid volcanic glasses in alkaline solutions: Understanding their potential to participate in the alkali-silica reaction
title_short Stability of acid volcanic glasses in alkaline solutions: Understanding their potential to participate in the alkali-silica reaction
title_full Stability of acid volcanic glasses in alkaline solutions: Understanding their potential to participate in the alkali-silica reaction
title_fullStr Stability of acid volcanic glasses in alkaline solutions: Understanding their potential to participate in the alkali-silica reaction
title_full_unstemmed Stability of acid volcanic glasses in alkaline solutions: Understanding their potential to participate in the alkali-silica reaction
title_sort stability of acid volcanic glasses in alkaline solutions: understanding their potential to participate in the alkali-silica reaction
publisher Elsevier Ltd
publishDate 2022
url http://pa.bibdigital.ucc.edu.ar/3300/1/A_P%C3%A9rez%20Marfil_Marfil_Lescano.pdf
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AT perezmarfilpaulam stabilityofacidvolcanicglassesinalkalinesolutionsunderstandingtheirpotentialtoparticipateinthealkalisilicareaction
AT marfilsilvinaa stabilityofacidvolcanicglassesinalkalinesolutionsunderstandingtheirpotentialtoparticipateinthealkalisilicareaction
AT lescanoleticia stabilityofacidvolcanicglassesinalkalinesolutionsunderstandingtheirpotentialtoparticipateinthealkalisilicareaction
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