Effects of Environment in the Microstructure and Properties of Sustainable Mortars with Fly Ash and Slag after a 5-Year Exposure Period
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Título: | Effects of Environment in the Microstructure and Properties of Sustainable Mortars with Fly Ash and Slag after a 5-Year Exposure Period |
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Autor/es: | Ortega, José Marcos | Tremiño Agulló, Rosa María | Sánchez, Isidro | Climent, Miguel-Ángel |
Grupo/s de investigación o GITE: | Durabilidad de Materiales y Construcciones en Ingeniería y Arquitectura |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Ingeniería Civil |
Palabras clave: | Ground granulated blast-furnace slag | Fly ash | Long-term exposure | Environment | Temperature | Relative humidity |
Área/s de conocimiento: | Ingeniería de la Construcción |
Fecha de publicación: | 1-mar-2018 |
Editor: | MDPI |
Cita bibliográfica: | Ortega JM, Tremiño RM, Sánchez I, Climent MÁ. Effects of Environment in the Microstructure and Properties of Sustainable Mortars with Fly Ash and Slag after a 5-Year Exposure Period. Sustainability. 2018; 10(3):663. doi:10.3390/su10030663 |
Resumen: | Nowadays, getting a more environmentally sustainable cement production is one of the main goals of the cement industry. In this regard, the use of active additions, like fly ash and ground granulated blast-furnace slag, has become very popular. The behaviour, in the short-term, of cement-based materials with those additions is well-known when their hardening is produced under optimum conditions. However, real structures are exposed to different environments during long periods, which could affect the development of microstructures and the service properties of cementitious materials. The objective of this work is to analyse the effects in the long-term (up to 5 years approximately) produced by the exposure to different non-optimum laboratory conditions in the microstructure, mechanical and durability properties of mortars made with slag and fly ash commercial cements. Their performance was compared to that observed for ordinary Portland cement (OPC) mortars. The microstructure has been analysed using mercury intrusion porosimetry. The effective porosity, the capillary suction coefficient, the chloride migration coefficient and mechanical strengths were analysed too. According to the results, mortars prepared using slag and fly ash sustainable commercial cements, exposed to non-optimum conditions, show a good performance after 5-years hardening period, similar or even better than OPC mortars. |
Patrocinador/es: | This research has been financially supported by the “Ministerio de Economía y Competitividad” (formerly “Ministerio de Ciencia e Innovación”) and AEI of Spain and FEDER (EU) with projects BIA2006-05961, BIA2010-20548, BIA2011-25721 and BIA2016-80982-R. |
URI: | http://hdl.handle.net/10045/73933 |
ISSN: | 2071-1050 |
DOI: | 10.3390/su10030663 |
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: | http://dx.doi.org/10.3390/su10030663 |
Aparece en las colecciones: | INV - DMCIA - Artículos de Revistas |
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