Almond-shell biomass ash (ABA): A greener alternative to the use of commercial alkaline reagents in alkali-activated cement

Detalhes bibliográficos
Autor(a) principal: Soriano, Lourdes
Data de Publicação: 2021
Outros Autores: Font, Alba, Tashima, Mauro M. [UNESP], Monzó, José, Borrachero, Maria Victoria, Bonifácio, Thaís, Payá, Jordi
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.conbuildmat.2021.123251
http://hdl.handle.net/11449/206213
Resumo: The use of almond-shell biomass ash (ABA) as an alternative component to the commercial reagents used in the activation of blast furnace slag (BFS) systems is investigated. The presence in its chemical composition of a high content of K2O indicates that it can alkalinize the medium. 100% waste-based mixtures ABA/BFS were studied by micro- and macrostructural tests. A compressive strength of 44 MPa was achieved by the mortar with 25% ABA addition cured for 7 days at 65 °C. The microstructural analysis showed the formation of slightly different C(K)-A-S-H gels to those formed when using KOH. The use of ABA in BFS mortars is shown as a greener alternative for construction materials because the replacement of synthetic chemical reagents that produced around a 75–80% of reduction in the values of kgCO2eq/m3 material.
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spelling Almond-shell biomass ash (ABA): A greener alternative to the use of commercial alkaline reagents in alkali-activated cementAlkali activated materialsAlmond-shell biomass ashBlast furnace slagEco-friendly materialWaste valorisationThe use of almond-shell biomass ash (ABA) as an alternative component to the commercial reagents used in the activation of blast furnace slag (BFS) systems is investigated. The presence in its chemical composition of a high content of K2O indicates that it can alkalinize the medium. 100% waste-based mixtures ABA/BFS were studied by micro- and macrostructural tests. A compressive strength of 44 MPa was achieved by the mortar with 25% ABA addition cured for 7 days at 65 °C. The microstructural analysis showed the formation of slightly different C(K)-A-S-H gels to those formed when using KOH. The use of ABA in BFS mortars is shown as a greener alternative for construction materials because the replacement of synthetic chemical reagents that produced around a 75–80% of reduction in the values of kgCO2eq/m3 material.ICITECH – GIQUIMA Group – Grupo de Investigación en Química de los Materiales de Construcción Instituto de Ciencia y Tecnología del Hormigón Universitat Politècnica de ValenciaUniversidade Estadual Paulista (UNESP) Faculdade de Engenharia de Ilha Solteira MAC – Grupo de Pesquisa em Materiais Alternativos de ConstruçãoUniversidade Estadual Paulista (UNESP) Faculdade de Engenharia de Ilha Solteira MAC – Grupo de Pesquisa em Materiais Alternativos de ConstruçãoUniversitat Politècnica de ValenciaUniversidade Estadual Paulista (Unesp)Soriano, LourdesFont, AlbaTashima, Mauro M. [UNESP]Monzó, JoséBorrachero, Maria VictoriaBonifácio, ThaísPayá, Jordi2021-06-25T10:28:22Z2021-06-25T10:28:22Z2021-07-05info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.conbuildmat.2021.123251Construction and Building Materials, v. 290.0950-0618http://hdl.handle.net/11449/20621310.1016/j.conbuildmat.2021.1232512-s2.0-85104367782Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengConstruction and Building Materialsinfo:eu-repo/semantics/openAccess2021-10-22T22:23:56Zoai:repositorio.unesp.br:11449/206213Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-06T00:13:46.673011Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Almond-shell biomass ash (ABA): A greener alternative to the use of commercial alkaline reagents in alkali-activated cement
title Almond-shell biomass ash (ABA): A greener alternative to the use of commercial alkaline reagents in alkali-activated cement
spellingShingle Almond-shell biomass ash (ABA): A greener alternative to the use of commercial alkaline reagents in alkali-activated cement
Soriano, Lourdes
Alkali activated materials
Almond-shell biomass ash
Blast furnace slag
Eco-friendly material
Waste valorisation
title_short Almond-shell biomass ash (ABA): A greener alternative to the use of commercial alkaline reagents in alkali-activated cement
title_full Almond-shell biomass ash (ABA): A greener alternative to the use of commercial alkaline reagents in alkali-activated cement
title_fullStr Almond-shell biomass ash (ABA): A greener alternative to the use of commercial alkaline reagents in alkali-activated cement
title_full_unstemmed Almond-shell biomass ash (ABA): A greener alternative to the use of commercial alkaline reagents in alkali-activated cement
title_sort Almond-shell biomass ash (ABA): A greener alternative to the use of commercial alkaline reagents in alkali-activated cement
author Soriano, Lourdes
author_facet Soriano, Lourdes
Font, Alba
Tashima, Mauro M. [UNESP]
Monzó, José
Borrachero, Maria Victoria
Bonifácio, Thaís
Payá, Jordi
author_role author
author2 Font, Alba
Tashima, Mauro M. [UNESP]
Monzó, José
Borrachero, Maria Victoria
Bonifácio, Thaís
Payá, Jordi
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universitat Politècnica de Valencia
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Soriano, Lourdes
Font, Alba
Tashima, Mauro M. [UNESP]
Monzó, José
Borrachero, Maria Victoria
Bonifácio, Thaís
Payá, Jordi
dc.subject.por.fl_str_mv Alkali activated materials
Almond-shell biomass ash
Blast furnace slag
Eco-friendly material
Waste valorisation
topic Alkali activated materials
Almond-shell biomass ash
Blast furnace slag
Eco-friendly material
Waste valorisation
description The use of almond-shell biomass ash (ABA) as an alternative component to the commercial reagents used in the activation of blast furnace slag (BFS) systems is investigated. The presence in its chemical composition of a high content of K2O indicates that it can alkalinize the medium. 100% waste-based mixtures ABA/BFS were studied by micro- and macrostructural tests. A compressive strength of 44 MPa was achieved by the mortar with 25% ABA addition cured for 7 days at 65 °C. The microstructural analysis showed the formation of slightly different C(K)-A-S-H gels to those formed when using KOH. The use of ABA in BFS mortars is shown as a greener alternative for construction materials because the replacement of synthetic chemical reagents that produced around a 75–80% of reduction in the values of kgCO2eq/m3 material.
publishDate 2021
dc.date.none.fl_str_mv 2021-06-25T10:28:22Z
2021-06-25T10:28:22Z
2021-07-05
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1016/j.conbuildmat.2021.123251
Construction and Building Materials, v. 290.
0950-0618
http://hdl.handle.net/11449/206213
10.1016/j.conbuildmat.2021.123251
2-s2.0-85104367782
url http://dx.doi.org/10.1016/j.conbuildmat.2021.123251
http://hdl.handle.net/11449/206213
identifier_str_mv Construction and Building Materials, v. 290.
0950-0618
10.1016/j.conbuildmat.2021.123251
2-s2.0-85104367782
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Construction and Building Materials
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808129597883023360

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