Coal bottom ash characterization aiming the incorporation in cellular concrete

Detalhes bibliográficos
Autor(a) principal: Pacheco,Fernanda
Data de Publicação: 2021
Outros Autores: Moreira,Michael Anderson Bica, Kuwakowiski,Marlova Piva, Breh,Feliciane Andrade, Tutikian,Bernardo Fonseca
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Matéria (Rio de Janeiro. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762021000300308
Resumo: ABSTRACT Ahead of the incorporation of residues in concrete composition, there is a decline in the environmental impact of buildings. One of the goals of today’s development is the employment of low-impact energy sources, such as thermoelectric. Thermoelectric industries display a high rate of residues, among which is pointed out coal bottom ash (CBA) (15% total residues), which have density superior to fly ash and accumulates in silos. Considering this scenario, this paper assessed the incorporation feasibility of CBA in the composition of cellular concrete, replacing silica fume. This study comprehended CBA characterization and application. For such, it was performed a scanning electron microscope (SEM) associated with Energy dispersive spectroscopy (EDS) analysis, laser granulometry, X-ray diffraction (XRD), X-ray efflorescence and density. Following the incorporation of the residues in cellular concrete in place of silica fume, it was performed compression strength analysis and SEM anew, evaluating the impact of CBA’s insertion in concrete’s microstructure. The XRD results are complementary to the other analyses. With SEM technique, it was observed the predominance of spherical-shape particles. The compressive strength of CBA concretes was superior to the reference concrete from 0,13 to 0,74MPa.
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spelling Coal bottom ash characterization aiming the incorporation in cellular concretecellular concretecoal bottom ashcharacterizationABSTRACT Ahead of the incorporation of residues in concrete composition, there is a decline in the environmental impact of buildings. One of the goals of today’s development is the employment of low-impact energy sources, such as thermoelectric. Thermoelectric industries display a high rate of residues, among which is pointed out coal bottom ash (CBA) (15% total residues), which have density superior to fly ash and accumulates in silos. Considering this scenario, this paper assessed the incorporation feasibility of CBA in the composition of cellular concrete, replacing silica fume. This study comprehended CBA characterization and application. For such, it was performed a scanning electron microscope (SEM) associated with Energy dispersive spectroscopy (EDS) analysis, laser granulometry, X-ray diffraction (XRD), X-ray efflorescence and density. Following the incorporation of the residues in cellular concrete in place of silica fume, it was performed compression strength analysis and SEM anew, evaluating the impact of CBA’s insertion in concrete’s microstructure. The XRD results are complementary to the other analyses. With SEM technique, it was observed the predominance of spherical-shape particles. The compressive strength of CBA concretes was superior to the reference concrete from 0,13 to 0,74MPa.Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiroem cooperação com a Associação Brasileira do Hidrogênio, ABH22021-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762021000300308Matéria (Rio de Janeiro) v.26 n.3 2021reponame:Matéria (Rio de Janeiro. Online)instname:Matéria (Rio de Janeiro. Online)instacron:RLAM10.1590/s1517-707620210003.13007info:eu-repo/semantics/openAccessPacheco,FernandaMoreira,Michael Anderson BicaKuwakowiski,Marlova PivaBreh,Feliciane AndradeTutikian,Bernardo Fonsecaeng2021-11-18T00:00:00Zoai:scielo:S1517-70762021000300308Revistahttp://www.materia.coppe.ufrj.br/https://old.scielo.br/oai/scielo-oai.php||materia@labh2.coppe.ufrj.br1517-70761517-7076opendoar:2021-11-18T00:00Matéria (Rio de Janeiro. Online) - Matéria (Rio de Janeiro. Online)false
dc.title.none.fl_str_mv Coal bottom ash characterization aiming the incorporation in cellular concrete
title Coal bottom ash characterization aiming the incorporation in cellular concrete
spellingShingle Coal bottom ash characterization aiming the incorporation in cellular concrete
Pacheco,Fernanda
cellular concrete
coal bottom ash
characterization
title_short Coal bottom ash characterization aiming the incorporation in cellular concrete
title_full Coal bottom ash characterization aiming the incorporation in cellular concrete
title_fullStr Coal bottom ash characterization aiming the incorporation in cellular concrete
title_full_unstemmed Coal bottom ash characterization aiming the incorporation in cellular concrete
title_sort Coal bottom ash characterization aiming the incorporation in cellular concrete
author Pacheco,Fernanda
author_facet Pacheco,Fernanda
Moreira,Michael Anderson Bica
Kuwakowiski,Marlova Piva
Breh,Feliciane Andrade
Tutikian,Bernardo Fonseca
author_role author
author2 Moreira,Michael Anderson Bica
Kuwakowiski,Marlova Piva
Breh,Feliciane Andrade
Tutikian,Bernardo Fonseca
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Pacheco,Fernanda
Moreira,Michael Anderson Bica
Kuwakowiski,Marlova Piva
Breh,Feliciane Andrade
Tutikian,Bernardo Fonseca
dc.subject.por.fl_str_mv cellular concrete
coal bottom ash
characterization
topic cellular concrete
coal bottom ash
characterization
description ABSTRACT Ahead of the incorporation of residues in concrete composition, there is a decline in the environmental impact of buildings. One of the goals of today’s development is the employment of low-impact energy sources, such as thermoelectric. Thermoelectric industries display a high rate of residues, among which is pointed out coal bottom ash (CBA) (15% total residues), which have density superior to fly ash and accumulates in silos. Considering this scenario, this paper assessed the incorporation feasibility of CBA in the composition of cellular concrete, replacing silica fume. This study comprehended CBA characterization and application. For such, it was performed a scanning electron microscope (SEM) associated with Energy dispersive spectroscopy (EDS) analysis, laser granulometry, X-ray diffraction (XRD), X-ray efflorescence and density. Following the incorporation of the residues in cellular concrete in place of silica fume, it was performed compression strength analysis and SEM anew, evaluating the impact of CBA’s insertion in concrete’s microstructure. The XRD results are complementary to the other analyses. With SEM technique, it was observed the predominance of spherical-shape particles. The compressive strength of CBA concretes was superior to the reference concrete from 0,13 to 0,74MPa.
publishDate 2021
dc.date.none.fl_str_mv 2021-01-01
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dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762021000300308
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dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/s1517-707620210003.13007
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
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dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiro
em cooperação com a Associação Brasileira do Hidrogênio, ABH2
publisher.none.fl_str_mv Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiro
em cooperação com a Associação Brasileira do Hidrogênio, ABH2
dc.source.none.fl_str_mv Matéria (Rio de Janeiro) v.26 n.3 2021
reponame:Matéria (Rio de Janeiro. Online)
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