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dc.contributor.authorReig Cerdá, Lucía
dc.contributor.authorSoriano, L.
dc.contributor.authorBorrachero, M. V.
dc.contributor.authorMonzó, J.
dc.contributor.authorPayá, J.
dc.description.abstractObjective The aim of this research was to investigate the influence of the alkali activator concentration and calcium dosage on the fresh behavior, compressive strength and microstructure of the binder produced by the alkali activation of porcelain stoneware waste, using NaOH and sodium silicate solution as activators. Materials Porcelain stoneware waste, NaOH and sodium silicate. Method Tested properties of mortars were the compressive strength and the setting times. Thermogravimetric analyses, microscopic studies, pH measurements, XRD and FTIR tests were used to assess the evolution of the microstructure developed. Results The results show that the activator concentration and calcium to sodium molar ratio strongly influence the fresh behavior and the hardening process of mortars. A linear evolution of compressive strength with sodium addition was observed when keeping the SiO2 concentration constant. Mortar samples with up to 36 MPa under compression were obtained after curing for 7 days at 65 °C.ca_CA
dc.format.extent9 p.ca_CA
dc.relation.isPartOfConstruction and Building Materials, 2014, vol. 63ca_CA
dc.rightsCopyright © 2014 Elsevier Ltd. All rights reserved. Copyright © 2015 Elsevier B.V. or its licensors or contributors. ScienceDirect® is a registered trademark of Elsevier B.V.ca_CA
dc.subjectCeramic wasteca_CA
dc.subjectWaste managementca_CA
dc.subjectAlkali-activated cementca_CA
dc.titleInfluence of the activator concentration and calcium hydroxide addition on the properties of alkali-activated porcelain stonewareca_CA

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