Influence of Crystalline Admixtures on the Short-Term Behaviour of Mortars Exposed to Sulphuric Acid
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Título: | Influence of Crystalline Admixtures on the Short-Term Behaviour of Mortars Exposed to Sulphuric Acid |
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Autor/es: | García Vera, Victoria Eugenia | Tenza-Abril, Antonio José | Saval Pérez, José Miguel | Lanzón, Marcos |
Grupo/s de investigación o GITE: | Tecnología de Materiales y Territorio (TECMATER) |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Ingeniería Civil |
Palabras clave: | Crystalline admixture | Chemical exposure | Sulphuric acid attack | Durability | Xypex |
Área/s de conocimiento: | Ingeniería de la Construcción |
Fecha de publicación: | 27-dic-2018 |
Editor: | MDPI |
Cita bibliográfica: | García-Vera VE, Tenza-Abril AJ, Saval JM, Lanzón M. Influence of Crystalline Admixtures on the Short-Term Behaviour of Mortars Exposed to Sulphuric Acid. Materials. 2019; 12(1):82. doi:10.3390/ma12010082 |
Resumen: | Using durable materials is a sustainable solution for extending the lifetime of constructions. The use of crystalline admixtures makes cementitious materials more durable. They plug pores, capillary tracts and microcracks, blocking the entrance of water due to the formation of crystals that prevent the penetration of liquids. The literature has covered the performance of these admixtures on concrete, but studies on mortars are still scarce. The aim of this study is to investigate the effect of an aggressive environment (sulphuric acid solution—3 wt%) on mortars produced with different percentages of a crystalline admixture (1%, 1.5% and 2% by weight of cement content). Physical and mechanical properties were studied after immersing the mortars in a H2SO4 solution for 90 days. It was found that, after a 90-day sulphuric acid exposure, mortars with the crystalline admixture showed greater compressive strength than the control mortar, besides exhibiting lower mass loss. However, the crystalline admixture did not produce any significant effect on the capillary water absorption coefficient. In a nonaggressive environment, and in the short term, the crystalline admixture did not have a significant effect on the compressive strength, the capillary water absorption coefficient or the ultrasonic pulse velocity. |
Patrocinador/es: | This research was funded by the University of Alicante (GRE13-03) and (VIGROB-256). |
URI: | http://hdl.handle.net/10045/85488 |
ISSN: | 1996-1944 |
DOI: | 10.3390/ma12010082 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2018 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/). |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.3390/ma12010082 |
Aparece en las colecciones: | INV - TECMATER - Artículos de Revistas |
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2019_Garcia-Vera_etal_Materials.pdf | 1,93 MB | Adobe PDF | Abrir Vista previa | |
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