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dc.contributor.authorLozano Lunar, Angélica
dc.contributor.authorÁlvarez, José Ignacio
dc.contributor.authorNavarro-Blasco, Íñigo
dc.contributor.authorJiménez, José Ramón
dc.contributor.authorFernández Rodríguez, José María
dc.date.accessioned2021-11-10T13:03:37Z
dc.date.available2021-11-10T13:03:37Z
dc.date.issued2021
dc.identifier.urihttp://hdl.handle.net/10396/22074
dc.description.abstractThis study analyses how a Mg-Al-Hydrotalcite with carbonate in the interlayer influences the hydration of mortar allowing the management of lead waste (solid or liquid) in a cement-based material. First, the compatibility of hydrotalcite with the cementitious matrix was studied through heat of hydration, workability, consistency, compressive strength and mineralogical phase formation. The changes produced by the incorporation of hydrotalcite were not drastic and the compatibility with the cement was verified. Lead was added in oxide and nitrate form to mortar with or without hydrotalcite and the same properties were evaluated, including a leaching test. The incorporation of lead delayed the hydration, this effect being increased by the hydrotalcite, which happened in the first instants of hydration. The addition of hydrotalcite counteracted the negative effect of lead in compressive strength values. The interaction between the hydrotalcite and the lead waste was favoured by the formation of plumbites under the pH conditions of cement hydration. Consequently, this interaction would seem to be superficial. The lead leaching decreased to values included in the “Non-Hazardous” limit of the environmental classification, very close to “Inert”. All mortars were produced by two mixing procedures to establish differences. When hydrotalcite was included, the compressive strength was higher in the second procedure and lead leaching showed better behaviour in the first procedure. This research expands the possibilities of the management of solid and liquid waste contaminated with lead by using a Mg-Al-Hydrotalcite in cement-based matrices.es_ES
dc.format.mimetypeapplication/pdfes_ES
dc.language.isoenges_ES
dc.publisherMDPIes_ES
dc.rightshttps://creativecommons.org/licenses/by/4.0/es_ES
dc.sourceApplied Clay Science 212, 106218 (2021)es_ES
dc.subjectHydrotalcitees_ES
dc.subjectLeades_ES
dc.subjectMortares_ES
dc.subjectCalorimetryes_ES
dc.subjectLeachinges_ES
dc.subjectWaste managementes_ES
dc.titleOptimisation of mortar with Mg-Al-Hydrotalcite as sustainable management strategy lead wastees_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.relation.publisherversionhttps://doi.org/10.1016/j.clay.2021.106218es_ES
dc.relation.projectIDJunta de Andalucía. FQM-391es_ES
dc.relation.projectIDJunta de Andalucía. TEP-227es_ES
dc.relation.projectIDJunta de Andalucía. 1262554-Res_ES
dc.relation.projectIDGobierno de España. FPU14/05245es_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccesses_ES


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