Long-Term Behaviour of Fly Ash and Slag Cement Grouts for Micropiles Exposed to a Sulphate Aggressive Medium

Please use this identifier to cite or link to this item: http://hdl.handle.net/10045/66557
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dc.contributorDurabilidad de Materiales y Construcciones en Ingeniería y Arquitecturaes_ES
dc.contributorIngeniería del Terreno y sus Estructuras (InTerEs)es_ES
dc.contributor.authorOrtega, José Marcos-
dc.contributor.authorEsteban Pérez, María Dolores-
dc.contributor.authorRodríguez Escribano, Raúl Rubén-
dc.contributor.authorPastor Navarro, José Luis-
dc.contributor.authorIbanco, Francisco José-
dc.contributor.authorSánchez, Isidro-
dc.contributor.authorCliment, Miguel-Ángel-
dc.contributor.otherUniversidad de Alicante. Departamento de Ingeniería Civiles_ES
dc.identifier.citationOrtega JM, Esteban MD, Rodríguez RR, Pastor JL, Ibanco FJ, Sánchez I, Climent MÁ. Long-Term Behaviour of Fly Ash and Slag Cement Grouts for Micropiles Exposed to a Sulphate Aggressive Medium. Materials. 2017; 10(6):598. doi:10.3390/ma10060598es_ES
dc.description.abstractNowadays, one of the most popular ways to get a more sustainable cement industry is using additions as cement replacement. However, there are many civil engineering applications in which the use of sustainable cements is not extended yet, such as special foundations, and particularly micropiles, even though the standards do not restrict the cement type to use. These elements are frequently exposed to the sulphates present in soils. The purpose of this research is to study the effects in the very long-term (until 600 days) of sulphate attack in the microstructure of micropiles grouts, prepared with ordinary Portland cement, fly ash and slag commercial cements, continuing a previous work, in which these effects were studied in the short-term. The microstructure changes have been analysed with the non-destructive impedance spectroscopy technique, mercury intrusion porosimetry and the “Wenner” resistivity test. The mass variation and the compressive strength have also been studied. The impedance spectroscopy has been the most sensitive technique for following the sulphate attack process. Considering the results obtained, micropiles grouts with slag and fly ash, exposed to an aggressive medium with high content of sulphates, have shown good behaviour in the very long-term (600 days) compared to grouts made with OPC.es_ES
dc.description.sponsorshipThe fee for publishing this open access paper has been provided by the R&D Center of Excellence in Architecture, Engineering and Design of European University (Spain). The research work included in the paper has been financially supported by the University of Alicante (Spain) through project GRE13-25.es_ES
dc.rights© 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/).es_ES
dc.subjectSpecial geotechnical workses_ES
dc.subjectImpedance spectroscopyes_ES
dc.subjectCompressive strengthes_ES
dc.subjectFly ashes_ES
dc.subjectGround granulated blast furnace slages_ES
dc.subjectSulphate attackes_ES
dc.subjectCement groutses_ES
dc.subject.otherIngeniería de la Construcciónes_ES
dc.subject.otherIngeniería del Terrenoes_ES
dc.titleLong-Term Behaviour of Fly Ash and Slag Cement Grouts for Micropiles Exposed to a Sulphate Aggressive Mediumes_ES
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