Olive-stone biomass ash (OBA): An alternative alkaline source for the blast furnace slag activation

Detalhes bibliográficos
Autor(a) principal: de Moraes Pinheiro, Sayonara Maria
Data de Publicação: 2018
Outros Autores: Font, Alba, Soriano, Lourdes, Tashima, Mauro M. [UNESP], Monzó, José, Borrachero, Maria Victoria, 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.2018.05.157
http://hdl.handle.net/11449/171052
Resumo: Alkali activated materials (AAM) are being investigated as an alternative binder that could be more eco-efficient than Portland cement. The effect of olive-stone biomass ash (OBA) on the activation of blast furnace slag (BFS) was studied. The mechanical behaviour of mortars in which OBA was replaced, or added to, BFS were compared to those found for BFS mortars activated with potassium hydroxide (KOH) and sodium hydroxide (NaOH) solutions in the range of 4–12 mol·kg−1. The results showed the high efficiency of OBA as activating reagent because it provided similar, or higher, strengths when compared to the alkali hydroxide activating solutions. The microstructural characteristics of the new binding OBA/BFS systems were assessed by X-ray diffraction (XRD), thermogravimetric analysis (TGA), field emission scanning electron microscopy (FESEM) and mercury intrusion porosimetry (MIP). These systems showed lower mean pore diameter and scarcer formation of zeolite structures when compared to KOH/BFS systems. These promising results demonstrated the viability of the use of these type of ashes as activating reagents in AAM.
id UNSP_2c7880d4e17a84235ea036b2ac87b099
oai_identifier_str oai:repositorio.unesp.br:11449/171052
network_acronym_str UNSP
network_name_str Repositório Institucional da UNESP
repository_id_str 2946
spelling Olive-stone biomass ash (OBA): An alternative alkaline source for the blast furnace slag activationAlkali activated materialBlast furnace slagConservationOlive-stone biomass ashStrength developmentAlkali activated materials (AAM) are being investigated as an alternative binder that could be more eco-efficient than Portland cement. The effect of olive-stone biomass ash (OBA) on the activation of blast furnace slag (BFS) was studied. The mechanical behaviour of mortars in which OBA was replaced, or added to, BFS were compared to those found for BFS mortars activated with potassium hydroxide (KOH) and sodium hydroxide (NaOH) solutions in the range of 4–12 mol·kg−1. The results showed the high efficiency of OBA as activating reagent because it provided similar, or higher, strengths when compared to the alkali hydroxide activating solutions. The microstructural characteristics of the new binding OBA/BFS systems were assessed by X-ray diffraction (XRD), thermogravimetric analysis (TGA), field emission scanning electron microscopy (FESEM) and mercury intrusion porosimetry (MIP). These systems showed lower mean pore diameter and scarcer formation of zeolite structures when compared to KOH/BFS systems. These promising results demonstrated the viability of the use of these type of ashes as activating reagents in AAM.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)UFES – Federal University of Espírito Santo Department of Civil EngineeringICITECH – GIQUIMA Group – Grupo de Investigación en Química de los Materiales de Construcción Instituto de Ciencia y Tecnología del Hormigón Universitat Politècnica de ValenciaUNESP – Grupo de Pesquisa MAC – Materiais Alternativos de Construção Universidade Estadual Paulista, Campus de Ilha SolteiraUNESP – Grupo de Pesquisa MAC – Materiais Alternativos de Construção Universidade Estadual Paulista, Campus de Ilha SolteiraUFES – Federal University of Espírito SantoUniversitat Politècnica de ValenciaUniversidade Estadual Paulista (Unesp)de Moraes Pinheiro, Sayonara MariaFont, AlbaSoriano, LourdesTashima, Mauro M. [UNESP]Monzó, JoséBorrachero, Maria VictoriaPayá, Jordi2018-12-11T16:53:31Z2018-12-11T16:53:31Z2018-07-30info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article327-338application/pdfhttp://dx.doi.org/10.1016/j.conbuildmat.2018.05.157Construction and Building Materials, v. 178, p. 327-338.0950-0618http://hdl.handle.net/11449/17105210.1016/j.conbuildmat.2018.05.1572-s2.0-850476509172-s2.0-85047650917.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengConstruction and Building Materials1,607info:eu-repo/semantics/openAccess2023-10-29T06:06:05Zoai:repositorio.unesp.br:11449/171052Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:19:55.343825Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Olive-stone biomass ash (OBA): An alternative alkaline source for the blast furnace slag activation
title Olive-stone biomass ash (OBA): An alternative alkaline source for the blast furnace slag activation
spellingShingle Olive-stone biomass ash (OBA): An alternative alkaline source for the blast furnace slag activation
de Moraes Pinheiro, Sayonara Maria
Alkali activated material
Blast furnace slag
Conservation
Olive-stone biomass ash
Strength development
title_short Olive-stone biomass ash (OBA): An alternative alkaline source for the blast furnace slag activation
title_full Olive-stone biomass ash (OBA): An alternative alkaline source for the blast furnace slag activation
title_fullStr Olive-stone biomass ash (OBA): An alternative alkaline source for the blast furnace slag activation
title_full_unstemmed Olive-stone biomass ash (OBA): An alternative alkaline source for the blast furnace slag activation
title_sort Olive-stone biomass ash (OBA): An alternative alkaline source for the blast furnace slag activation
author de Moraes Pinheiro, Sayonara Maria
author_facet de Moraes Pinheiro, Sayonara Maria
Font, Alba
Soriano, Lourdes
Tashima, Mauro M. [UNESP]
Monzó, José
Borrachero, Maria Victoria
Payá, Jordi
author_role author
author2 Font, Alba
Soriano, Lourdes
Tashima, Mauro M. [UNESP]
Monzó, José
Borrachero, Maria Victoria
Payá, Jordi
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv UFES – Federal University of Espírito Santo
Universitat Politècnica de Valencia
Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv de Moraes Pinheiro, Sayonara Maria
Font, Alba
Soriano, Lourdes
Tashima, Mauro M. [UNESP]
Monzó, José
Borrachero, Maria Victoria
Payá, Jordi
dc.subject.por.fl_str_mv Alkali activated material
Blast furnace slag
Conservation
Olive-stone biomass ash
Strength development
topic Alkali activated material
Blast furnace slag
Conservation
Olive-stone biomass ash
Strength development
description Alkali activated materials (AAM) are being investigated as an alternative binder that could be more eco-efficient than Portland cement. The effect of olive-stone biomass ash (OBA) on the activation of blast furnace slag (BFS) was studied. The mechanical behaviour of mortars in which OBA was replaced, or added to, BFS were compared to those found for BFS mortars activated with potassium hydroxide (KOH) and sodium hydroxide (NaOH) solutions in the range of 4–12 mol·kg−1. The results showed the high efficiency of OBA as activating reagent because it provided similar, or higher, strengths when compared to the alkali hydroxide activating solutions. The microstructural characteristics of the new binding OBA/BFS systems were assessed by X-ray diffraction (XRD), thermogravimetric analysis (TGA), field emission scanning electron microscopy (FESEM) and mercury intrusion porosimetry (MIP). These systems showed lower mean pore diameter and scarcer formation of zeolite structures when compared to KOH/BFS systems. These promising results demonstrated the viability of the use of these type of ashes as activating reagents in AAM.
publishDate 2018
dc.date.none.fl_str_mv 2018-12-11T16:53:31Z
2018-12-11T16:53:31Z
2018-07-30
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.2018.05.157
Construction and Building Materials, v. 178, p. 327-338.
0950-0618
http://hdl.handle.net/11449/171052
10.1016/j.conbuildmat.2018.05.157
2-s2.0-85047650917
2-s2.0-85047650917.pdf
url http://dx.doi.org/10.1016/j.conbuildmat.2018.05.157
http://hdl.handle.net/11449/171052
identifier_str_mv Construction and Building Materials, v. 178, p. 327-338.
0950-0618
10.1016/j.conbuildmat.2018.05.157
2-s2.0-85047650917
2-s2.0-85047650917.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Construction and Building Materials
1,607
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 327-338
application/pdf
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_ 1808128634508017664

Registros relacionados