Non-Destructive Study of the Microstructural Effects of Sodium and Magnesium Sulphate Attack on Mortars Containing Silica Fume Using Impedance Spectroscopy
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http://hdl.handle.net/10045/67536
Títol: | Non-Destructive Study of the Microstructural Effects of Sodium and Magnesium Sulphate Attack on Mortars Containing Silica Fume Using Impedance Spectroscopy |
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Autors: | Williams, Mark | Ortega, José Marcos | Sánchez, Isidro | Cabeza, Marta | Climent, Miguel-Ángel |
Grups d'investigació o GITE: | Durabilidad de Materiales y Construcciones en Ingeniería y Arquitectura |
Centre, Departament o Servei: | Universidad de Alicante. Departamento de Ingeniería Civil |
Paraules clau: | Impedance spectroscopy | Sulphate attack | Microstructure | Silica fume | Magnesium |
Àrees de coneixement: | Ingeniería de la Construcción |
Data de publicació: | 23-de juny-2017 |
Editor: | MDPI |
Citació bibliogràfica: | Williams M, Ortega JM, Sánchez I, Cabeza M, Climent MÁ. Non-Destructive Study of the Microstructural Effects of Sodium and Magnesium Sulphate Attack on Mortars Containing Silica Fume Using Impedance Spectroscopy. Applied Sciences. 2017; 7(7):648. doi:10.3390/app7070648 |
Resum: | The microstructural effects of exposure to a 15% magnesium sulphate, 15% sodium sulphate, and mixed solutions were observed in mortars with and without silica fume, using the non-destructive impedance spectroscopy technique. The non-destructive “Wenner” resistivity test and the classical mercury intrusion porosimetry were used as contrast techniques. The compressive strength of the mortars was also studied. In view of the results obtained, impedance spectroscopy was the most sensitive technique for detecting changes in the porous network of the studied mortars. The addition of silica fume results in a more refined microstructure and a higher compressive strength in mortars exposed to aggressive sulphate solutions. |
Patrocinadors: | The research work included in the paper has been financially supported by the “Ministerio de Economía y Competitividad” (formerly “Ministerio de Ciencia e Innovación”) of Spain and FEDER through projects BIA2010-20548 and BIA2011-25721, and by the University of Alicante through project GRE13-25. |
URI: | http://hdl.handle.net/10045/67536 |
ISSN: | 2076-3417 |
DOI: | 10.3390/app7070648 |
Idioma: | eng |
Tipus: | info:eu-repo/semantics/article |
Drets: | © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
Revisió científica: | si |
Versió de l'editor: | http://dx.doi.org/10.3390/app7070648 |
Apareix a la col·lecció: | INV - DMCIA - Artículos de Revistas |
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2017_Williams_etal_ApplSci.pdf | 3,72 MB | Adobe PDF | Obrir Vista prèvia | |
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