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Waste glass in the geopolymer preparation. Mechanical and microstructural characterisation

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dc.affiliation.dptoUC3M. Departamento de Ciencia e Ingeniería de Materiales e Ingeniería Químicaes
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Comportamiento en Servicio de Materialeses
dc.contributor.authorTorres Carrasco, Manuel
dc.contributor.authorPuertas Maroto, Francisca
dc.contributor.funderMinisterio de Economía y Competitividad (España)es
dc.date.accessioned2022-05-27T14:17:00Z
dc.date.available2022-05-27T14:17:00Z
dc.date.issued2015-03-01
dc.description.abstractAlkali activated materials have a variety of niche applications (other than as a large-scale civil infrastructure material) in which alkali-activated binders and concretes have shown potential for commercial-scale development. The majority of these applications have not yet seen large-scale alkali activated materials utilisation, moreover, there have been at least pilot-scale or demonstration projects in different areas and each provides scope for future development and potentially profitable advances in science and technology. This paper explores the feasibility of generating geopolymers from fly ash using waste glass as an alkaline activator (waterglass family). The mechanical properties of the cementitious geopolymers obtained by alkali-activating fly ash with three solutions: sodium hydroxide 8 M, sodium hydroxide 10 M þ 15% waterglass and sodium hydroxide 10 M þ 15 g of waste glass were determined, along with their microstructural characteristics using Fourier Transform Infrared Spectroscopy, X-Ray Diffraction, Mercury Intrusion Porosimetry, Mass Nuclear Magnetic Resonance, Scanning Electron Microscopy and Back Scattering Electron Microscopy. The main reaction product in all the systems studied was the alkaline aluminosilicate hydrate gel to which geopolymers owe their mechanical properties. The gel formed when the system contained an extra source of silicon was shown to prompt compositional differences, while the degree of reaction, microstructure and Si/Al and Na/Al ratios were very similar in the former two systems. Waste glass proved to be an effective alkaline activator in geopolymer preparation.en
dc.description.sponsorshipThe present research was funded by the Spanish Ministry of Economy and Competitiveness under project BIA2010-15516.en
dc.description.statusPublicadoes
dc.identifier.bibliographicCitationJournal of Cleaner Production, (2015), v. 90, p.: 397-408.en
dc.identifier.doihttps://doi.org/10.1016/j.jclepro.2014.11.074
dc.identifier.issn0959-6526
dc.identifier.publicationfirstpage397
dc.identifier.publicationlastpage408
dc.identifier.publicationtitleJournal of Cleaner Productionen
dc.identifier.publicationvolume90
dc.identifier.urihttps://hdl.handle.net/10016/34923
dc.identifier.uxxiAR/0000029244
dc.language.isoengen
dc.publisherElsevier
dc.relation.projectIDGobierno de España. BIA2010-15516es
dc.rights© 2014 Elsevier Ltd. All rights reserved.en
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subject.ecienciaMaterialeses
dc.subject.otherGeopolymersen
dc.subject.otherWaste glassen
dc.subject.otherMechanical strengthen
dc.subject.otherCharacterisationen
dc.subject.otherAlternative alkaline activatorsen
dc.titleWaste glass in the geopolymer preparation. Mechanical and microstructural characterisationen
dc.typeresearch article*
dc.type.hasVersionAM*
dspace.entity.typePublication
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