Mineralogical study of granite waste in a pozzolan/Ca(OH)2 system: Influence of the activation process

[EN] Despite the technological improvements introduced in the production of ornamental granite, sludge is inevitably generated in end product cutting and polishing. The present study constitutes the first attempt to scientifically analyse granite sludge, focusing in particular on its characterisatio...

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Detalles Bibliográficos
Autores: Medina Martínez, Gabriel, Sáez del Bosque, Isabel F., Frías Rojas, Moisés, Sánchez de Rojas, María Isabel, Medina Martínez, César
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2016
País:España
Institución:Universidad de León
Repositorio:BULERIA. Repositorio Institucional de la Universidad de León
OAI Identifier:oai:buleria.unileon.es:10612/23850
Acceso en línea:https://hdl.handle.net/10612/23850
Access Level:acceso abierto
Palabra clave:Construcción
Tecnología de materiales
Waste management
Pozzolan
Mineralogy
Hydration products
3312 Tecnología de Materiales
3313.04 Material de Construcción
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repository_id_str
spelling Mineralogical study of granite waste in a pozzolan/Ca(OH)2 system: Influence of the activation processMedina Martínez, GabrielSáez del Bosque, Isabel F.Frías Rojas, MoisésSánchez de Rojas, María IsabelMedina Martínez, CésarConstrucciónTecnología de materialesWaste managementPozzolanMineralogyHydration products3312 Tecnología de Materiales3313.04 Material de Construcción[EN] Despite the technological improvements introduced in the production of ornamental granite, sludge is inevitably generated in end product cutting and polishing. The present study constitutes the first attempt to scientifically analyse granite sludge, focusing in particular on its characterisation and pozzolanic activity and the morphological and microstructural changes taking place in both thermally activated waste and in the pozzolan/Ca(OH)2 system in the first 360 days of reaction. The possible valorisation of this waste as a component of more eco-friendly cements is assessed with a view to furthering the circular economy. The findings show that thermal activation has no beneficial effect on sludge pozzolanicity, which at later ages was similar to the activity observed in other additions such as copper and manganese silicate slag but lower than in silica fume, fly ash and fired clay materials. The granite waste/Ca(OH)2 system microstructure, in turn, contains C-S-H gels characterised by a low (0.6–1.0) Ca/Si ratio.SIGobierno de ExtremaduraEuropean Regional Development Fund (ERDF) under grant GR 15064ElsevierIngenieria MecanicaEscuela de Ingenierias Industrial, Informática y Aeroespacial2016info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionhttps://hdl.handle.net/10612/23850reponame:BULERIA. Repositorio Institucional de la Universidad de Leóninstname:Universidad de LeónInglésinfo:eu-repo/grantAgreement/MINECO/Programa Estatal de Fomento de la Investigación Científica y Técnica de Excelencia/BIA 2013-48876-C3-1-Rinfo:eu-repo/grantAgreement/MINECO/Programa Estatal de Fomento de la Investigación Científica y Técnica de Excelencia/BIA 2013-48876-C3-2-Rhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:buleria.unileon.es:10612/238502026-06-24T12:43:27Z
dc.title.none.fl_str_mv Mineralogical study of granite waste in a pozzolan/Ca(OH)2 system: Influence of the activation process
title Mineralogical study of granite waste in a pozzolan/Ca(OH)2 system: Influence of the activation process
spellingShingle Mineralogical study of granite waste in a pozzolan/Ca(OH)2 system: Influence of the activation process
Medina Martínez, Gabriel
Construcción
Tecnología de materiales
Waste management
Pozzolan
Mineralogy
Hydration products
3312 Tecnología de Materiales
3313.04 Material de Construcción
title_short Mineralogical study of granite waste in a pozzolan/Ca(OH)2 system: Influence of the activation process
title_full Mineralogical study of granite waste in a pozzolan/Ca(OH)2 system: Influence of the activation process
title_fullStr Mineralogical study of granite waste in a pozzolan/Ca(OH)2 system: Influence of the activation process
title_full_unstemmed Mineralogical study of granite waste in a pozzolan/Ca(OH)2 system: Influence of the activation process
title_sort Mineralogical study of granite waste in a pozzolan/Ca(OH)2 system: Influence of the activation process
dc.creator.none.fl_str_mv Medina Martínez, Gabriel
Sáez del Bosque, Isabel F.
Frías Rojas, Moisés
Sánchez de Rojas, María Isabel
Medina Martínez, César
author Medina Martínez, Gabriel
author_facet Medina Martínez, Gabriel
Sáez del Bosque, Isabel F.
Frías Rojas, Moisés
Sánchez de Rojas, María Isabel
Medina Martínez, César
author_role author
author2 Sáez del Bosque, Isabel F.
Frías Rojas, Moisés
Sánchez de Rojas, María Isabel
Medina Martínez, César
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Ingenieria Mecanica
Escuela de Ingenierias Industrial, Informática y Aeroespacial
dc.subject.none.fl_str_mv Construcción
Tecnología de materiales
Waste management
Pozzolan
Mineralogy
Hydration products
3312 Tecnología de Materiales
3313.04 Material de Construcción
topic Construcción
Tecnología de materiales
Waste management
Pozzolan
Mineralogy
Hydration products
3312 Tecnología de Materiales
3313.04 Material de Construcción
description [EN] Despite the technological improvements introduced in the production of ornamental granite, sludge is inevitably generated in end product cutting and polishing. The present study constitutes the first attempt to scientifically analyse granite sludge, focusing in particular on its characterisation and pozzolanic activity and the morphological and microstructural changes taking place in both thermally activated waste and in the pozzolan/Ca(OH)2 system in the first 360 days of reaction. The possible valorisation of this waste as a component of more eco-friendly cements is assessed with a view to furthering the circular economy. The findings show that thermal activation has no beneficial effect on sludge pozzolanicity, which at later ages was similar to the activity observed in other additions such as copper and manganese silicate slag but lower than in silica fume, fly ash and fired clay materials. The granite waste/Ca(OH)2 system microstructure, in turn, contains C-S-H gels characterised by a low (0.6–1.0) Ca/Si ratio.
publishDate 2016
dc.date.none.fl_str_mv 2016
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/10612/23850
url https://hdl.handle.net/10612/23850
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/MINECO/Programa Estatal de Fomento de la Investigación Científica y Técnica de Excelencia/BIA 2013-48876-C3-1-R
info:eu-repo/grantAgreement/MINECO/Programa Estatal de Fomento de la Investigación Científica y Técnica de Excelencia/BIA 2013-48876-C3-2-R
dc.rights.none.fl_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:BULERIA. Repositorio Institucional de la Universidad de León
instname:Universidad de León
instname_str Universidad de León
reponame_str BULERIA. Repositorio Institucional de la Universidad de León
collection BULERIA. Repositorio Institucional de la Universidad de León
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,812429

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