Alkali-activated binders based on the coarse fraction of municipal solid waste incineration bottom ash

The potential of the least polluted fraction (from 8 to 30mm) of municipal solid waste incineration (MSWI) weathered bottom ash (WBA) as an alkali-activated cement precursor was evaluated. Alkali-activated WBA binders (AA-WBA) formulations were prepared through alkali-activation of WBA as sole precu...

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Authors: Maldonado Alameda, Alex, Giró Paloma, Jessica, Mañosa Bover, Jofre, Formosa Mitjans, Joan, Chimenos Ribera, Josep Ma.
Format: article
Status:Published version
Publication Date:2021
Country:España
Institution:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repository:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/196119
Online Access:https://hdl.handle.net/2445/196119
Access Level:Open access
Keyword:Incineració
Residus
Ciment pòrtland
Incineration
Waste products
Portland cement
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spelling Alkali-activated binders based on the coarse fraction of municipal solid waste incineration bottom ashMaldonado Alameda, AlexGiró Paloma, JessicaMañosa Bover, JofreFormosa Mitjans, JoanChimenos Ribera, Josep Ma.IncineracióResidusCiment pòrtlandIncinerationWaste productsPortland cementThe potential of the least polluted fraction (from 8 to 30mm) of municipal solid waste incineration (MSWI) weathered bottom ash (WBA) as an alkali-activated cement precursor was evaluated. Alkali-activated WBA binders (AA-WBA) formulations were prepared through alkali-activation of WBA as sole precursor. Sodium silicate (Na2SiO3) and sodium hydroxide (NaOH) mixtures with different pH's were used as alkali-activator solution. The effect of alkali-activator solution pH on the final properties was assessed. Results showed the hydrolytic stability of allformulations. The selective chemical extractions and physicochemical characterisation revealed the formation of the C-S-H, C-A-S-H, and (N,C)-A-S-H gels. The promising compressive strength results demonstrated the potential of AA-WBA binders. The increase of pH in the alkali-activated solution promotes the formation of gel reaction products and enhance mechanical properties. This investigation promotes the green cements manufacturing and the use of secondary resources to reduce the impact of natural resources extraction used for the ordinary Portland cement (OPC) production.Consejo Superior de Investigaciones Científicas (CSIC)2023202320212023info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion12 p.application/pdfhttps://hdl.handle.net/2445/196119Articles publicats en revistes (Ciència dels Materials i Química Física)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésReproducció del document publicat a: https://doi.org/10.1016/j.bsecv.2020.12.002Boletin de la Sociedad Española de Ceramica y Vidrio, 2021, vol. 61, num. 4, p. 1-12https://doi.org/10.1016/j.bsecv.2020.12.002cc-by-nc-nd (c) Sociedad Española de Ceramica y Vidrio, 2021https://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:recercat.cat:2445/1961192026-05-29T05:05:01Z
dc.title.none.fl_str_mv Alkali-activated binders based on the coarse fraction of municipal solid waste incineration bottom ash
title Alkali-activated binders based on the coarse fraction of municipal solid waste incineration bottom ash
spellingShingle Alkali-activated binders based on the coarse fraction of municipal solid waste incineration bottom ash
Maldonado Alameda, Alex
Incineració
Residus
Ciment pòrtland
Incineration
Waste products
Portland cement
title_short Alkali-activated binders based on the coarse fraction of municipal solid waste incineration bottom ash
title_full Alkali-activated binders based on the coarse fraction of municipal solid waste incineration bottom ash
title_fullStr Alkali-activated binders based on the coarse fraction of municipal solid waste incineration bottom ash
title_full_unstemmed Alkali-activated binders based on the coarse fraction of municipal solid waste incineration bottom ash
title_sort Alkali-activated binders based on the coarse fraction of municipal solid waste incineration bottom ash
dc.creator.none.fl_str_mv Maldonado Alameda, Alex
Giró Paloma, Jessica
Mañosa Bover, Jofre
Formosa Mitjans, Joan
Chimenos Ribera, Josep Ma.
author Maldonado Alameda, Alex
author_facet Maldonado Alameda, Alex
Giró Paloma, Jessica
Mañosa Bover, Jofre
Formosa Mitjans, Joan
Chimenos Ribera, Josep Ma.
author_role author
author2 Giró Paloma, Jessica
Mañosa Bover, Jofre
Formosa Mitjans, Joan
Chimenos Ribera, Josep Ma.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Incineració
Residus
Ciment pòrtland
Incineration
Waste products
Portland cement
topic Incineració
Residus
Ciment pòrtland
Incineration
Waste products
Portland cement
description The potential of the least polluted fraction (from 8 to 30mm) of municipal solid waste incineration (MSWI) weathered bottom ash (WBA) as an alkali-activated cement precursor was evaluated. Alkali-activated WBA binders (AA-WBA) formulations were prepared through alkali-activation of WBA as sole precursor. Sodium silicate (Na2SiO3) and sodium hydroxide (NaOH) mixtures with different pH's were used as alkali-activator solution. The effect of alkali-activator solution pH on the final properties was assessed. Results showed the hydrolytic stability of allformulations. The selective chemical extractions and physicochemical characterisation revealed the formation of the C-S-H, C-A-S-H, and (N,C)-A-S-H gels. The promising compressive strength results demonstrated the potential of AA-WBA binders. The increase of pH in the alkali-activated solution promotes the formation of gel reaction products and enhance mechanical properties. This investigation promotes the green cements manufacturing and the use of secondary resources to reduce the impact of natural resources extraction used for the ordinary Portland cement (OPC) production.
publishDate 2021
dc.date.none.fl_str_mv 2021
2023
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/196119
url https://hdl.handle.net/2445/196119
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció del document publicat a: https://doi.org/10.1016/j.bsecv.2020.12.002
Boletin de la Sociedad Española de Ceramica y Vidrio, 2021, vol. 61, num. 4, p. 1-12
https://doi.org/10.1016/j.bsecv.2020.12.002
dc.rights.none.fl_str_mv cc-by-nc-nd (c) Sociedad Española de Ceramica y Vidrio, 2021
https://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by-nc-nd (c) Sociedad Española de Ceramica y Vidrio, 2021
https://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 12 p.
application/pdf
dc.publisher.none.fl_str_mv Consejo Superior de Investigaciones Científicas (CSIC)
publisher.none.fl_str_mv Consejo Superior de Investigaciones Científicas (CSIC)
dc.source.none.fl_str_mv Articles publicats en revistes (Ciència dels Materials i Química Física)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869410590861033472
score 15,81155

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