Fusion of phosphate by-products and glass waste for preparation of alkali-activated binders

Landfilling of mine and industrial waste streams leads to environmental and economic issues. Sustainable management methods through valorization in manufacturing green construction materials are a current research interest. Here, a promising process for recycling mine tailings, such as phosphate slu...

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Detalles Bibliográficos
Autores: Moukannaa, Samira, Aboulayt, Abdelilah, Hakkou, Rachid, Benzaazoua, Mostafa, Ohenoja, Katja, Palomo, Ángel, Fernández-Jiménez, Ana
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/283961
Acceso en línea:http://hdl.handle.net/10261/283961
Access Level:acceso abierto
Palabra clave:Mine tailings valorization
Glass waste
Phosphate sludge
Alkaline fusion
Alkali-activated materials
NMR
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spelling Fusion of phosphate by-products and glass waste for preparation of alkali-activated bindersMoukannaa, SamiraAboulayt, AbdelilahHakkou, RachidBenzaazoua, MostafaOhenoja, KatjaPalomo, ÁngelFernández-Jiménez, AnaMine tailings valorizationGlass wastePhosphate sludgeAlkaline fusionAlkali-activated materialsNMRLandfilling of mine and industrial waste streams leads to environmental and economic issues. Sustainable management methods through valorization in manufacturing green construction materials are a current research interest. Here, a promising process for recycling mine tailings, such as phosphate sludge, is proposed. A mixture of phosphate sludge, kaolin clay (Al source), and glass waste (Si source) was prepared. Three fluxing agents were tested at 1000 °C (NaOH, NaCO, NaSO). NaCO was selected as the most cost-effective. The precursors were alkaline activated with NaOH solution (2, 6, and 8 M). At 28 days of curing (20 h room temperature + 6 h 85 °C + room temperature), the best compressive strength (of more than 45 MPa) was obtained with 8 M NaOH. The reaction products, characterized by XRD, FTIR, SEM, and MAS NMR, show that the main reaction products is a gel N–A–S–H/(N,C)–A–S–H together with some unreacted crystalline phases formed during the fusion.ElsevierMinisterio de Ciencia, Innovación y Universidades (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2022202220222022info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/283961reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1016/j.compositesb.2022.110044Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2839612026-05-22T06:33:51Z
dc.title.none.fl_str_mv Fusion of phosphate by-products and glass waste for preparation of alkali-activated binders
title Fusion of phosphate by-products and glass waste for preparation of alkali-activated binders
spellingShingle Fusion of phosphate by-products and glass waste for preparation of alkali-activated binders
Moukannaa, Samira
Mine tailings valorization
Glass waste
Phosphate sludge
Alkaline fusion
Alkali-activated materials
NMR
title_short Fusion of phosphate by-products and glass waste for preparation of alkali-activated binders
title_full Fusion of phosphate by-products and glass waste for preparation of alkali-activated binders
title_fullStr Fusion of phosphate by-products and glass waste for preparation of alkali-activated binders
title_full_unstemmed Fusion of phosphate by-products and glass waste for preparation of alkali-activated binders
title_sort Fusion of phosphate by-products and glass waste for preparation of alkali-activated binders
dc.creator.none.fl_str_mv Moukannaa, Samira
Aboulayt, Abdelilah
Hakkou, Rachid
Benzaazoua, Mostafa
Ohenoja, Katja
Palomo, Ángel
Fernández-Jiménez, Ana
author Moukannaa, Samira
author_facet Moukannaa, Samira
Aboulayt, Abdelilah
Hakkou, Rachid
Benzaazoua, Mostafa
Ohenoja, Katja
Palomo, Ángel
Fernández-Jiménez, Ana
author_role author
author2 Aboulayt, Abdelilah
Hakkou, Rachid
Benzaazoua, Mostafa
Ohenoja, Katja
Palomo, Ángel
Fernández-Jiménez, Ana
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Ministerio de Ciencia, Innovación y Universidades (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Mine tailings valorization
Glass waste
Phosphate sludge
Alkaline fusion
Alkali-activated materials
NMR
topic Mine tailings valorization
Glass waste
Phosphate sludge
Alkaline fusion
Alkali-activated materials
NMR
description Landfilling of mine and industrial waste streams leads to environmental and economic issues. Sustainable management methods through valorization in manufacturing green construction materials are a current research interest. Here, a promising process for recycling mine tailings, such as phosphate sludge, is proposed. A mixture of phosphate sludge, kaolin clay (Al source), and glass waste (Si source) was prepared. Three fluxing agents were tested at 1000 °C (NaOH, NaCO, NaSO). NaCO was selected as the most cost-effective. The precursors were alkaline activated with NaOH solution (2, 6, and 8 M). At 28 days of curing (20 h room temperature + 6 h 85 °C + room temperature), the best compressive strength (of more than 45 MPa) was obtained with 8 M NaOH. The reaction products, characterized by XRD, FTIR, SEM, and MAS NMR, show that the main reaction products is a gel N–A–S–H/(N,C)–A–S–H together with some unreacted crystalline phases formed during the fusion.
publishDate 2022
dc.date.none.fl_str_mv 2022
2022
2022
2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/283961
url http://hdl.handle.net/10261/283961
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1016/j.compositesb.2022.110044
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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