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Waste glass as a precursor in alkaline activation: Chemical process and hydration products

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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.accessioned2021-12-22T11:11:42Z
dc.date.available2021-12-22T11:11:42Z
dc.date.issued2017-02-15
dc.description.abstractThis paper discusses the results of alkali-activating waste glass in pursuit of a new type of alkali activated materials (AAMs). Waste glass pastes were prepared with different alkaline activators (NaOH, NaOH/ Na2CO3, sodium silicate hydrate and KOH) with different concentrations and cured for 20 h at 85 C and at 99% or 6.5% relative humidity to assess the effect of these variables on paste mechanical strength and microstructure. Compressive strength performance was better at the higher alkaline concentrations and when the pastes were cured at low relative humidity (6.5%), which induced low porosity (MIP) and high specific surface (BET). Irrespective of the type of activator or curing process, the main reaction product was a Si-high, Al-low gel. As a raw material for alkaline cement manufacture, waste glass delivered compact, high-strength cementitious skeletons.en
dc.description.sponsorshipThis research was funded by the Ministry of Economy and Competitiveness under projects BIA2010-15516 and BIA2013-47876-C2-1-P and the Spanish National Research Council under project PIE201460E06. The authors wish to thank Eduardo Torroja Institute for Construction Science technicians Alfredo Gil, Francisco Morales and Patricia Rivilla for their assistance with the laboratory trials.en
dc.format.extent13
dc.identifier.bibliographicCitationTorres-Carrasco, M. & Puertas, F. (2017). Waste glass as a precursor in alkaline activation: Chemical process and hydration products. Construction and Building Materials, 139, 342–354.en
dc.identifier.doihttp://dx.doi.org/10.1016/j.conbuildmat.2017.02.071
dc.identifier.issn0950-0618
dc.identifier.publicationfirstpage342
dc.identifier.publicationlastpage354
dc.identifier.publicationtitleConstruction and Building Materialsen
dc.identifier.publicationvolume139
dc.identifier.urihttps://hdl.handle.net/10016/33828
dc.identifier.uxxiAR/0000028944
dc.language.isoengen
dc.publisherElsevieren
dc.relation.projectIDGobierno de España. BIA2010-15516es
dc.relation.projectIDGobierno de España. BIA2013-47876-C2-1-Pes
dc.rights© 2017 Elsevier Ltd. All rights reserved.es
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.accessRightsopen accessen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subject.ecienciaMaterialeses
dc.subject.ecienciaQuímicaes
dc.subject.otherWaste glassen
dc.subject.otherAlkali-activated materialsen
dc.subject.otherMechanical behaviouren
dc.subject.otherMicrostructureen
dc.subject.otherCuring conditionsen
dc.titleWaste glass as a precursor in alkaline activation: Chemical process and hydration productsen
dc.typeresearch article*
dc.type.hasVersionAM*
dspace.entity.typePublication
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