Influence of processing parameters variation on the development of geopolymeric ceramic blocks with calcined kaolinite clay

Detalhes bibliográficos
Autor(a) principal: Junior, José Alexandre Linhares
Data de Publicação: 2022
Outros Autores: de Azevedo, Afonso Rangel Garcez, Marvila, Markssuel Teixeira, Teixeira, Silvio Rainho [UNESP], Fediuk, Roman, Vieira, Carlos Maurício Fontes
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.cscm.2022.e00897
http://hdl.handle.net/11449/230243
Resumo: The cement industry is responsible for a considerable part of the emission of gases that cause the greenhouse effect. In this context, geopolymer materials have been the subject of extensive studies, as they are an ecologically sustainable viable alternative to Portland cement. The geopolymer consists of a part rich in silica and alumina and another alkaline activating fraction, not having burning steps in its production chain, which consequently reduces the emission of CO2. Geopolymers also allow the incorporation of specific residues in its precursor part, such as calcined clays. The specimens for this study were produced by the molding process, using commercial metakaolin as the basis for the precursor fraction. After demolding, the test cups were subjected to ambient curing at 25 °C and thermal curing at 80 °C, for periods of 7, 14 and 28 days. The objective of this work was to analyze the behavior of geopolymers specimens against the variation of several parameters such as percentage of calcined clay (CC) incorporation into metakaolin in 10% and 20%, its granulometry in 100 and 200 Mesh, the molar ratio of SiO2/Al2O3, type and period of cure to evaluate technological properties such as resistance to bending, open porosity, water absorption, linear shrinkage and bulk density, aiming for future applications in the production of ceramic bricks. The results showed that an increase in the percentage of CC incorporation contributes to an improvement in the flexural strength, reaching 4.88 MPa to 20%. The molar SiO2/Al2O3 ratio of 3.0 was the most ideal. The importance of this study is linked to the evaluation of several parameters for the incorporation of calcined clay, in order to obtain properties required for future applications in ceramic bricks.
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spelling Influence of processing parameters variation on the development of geopolymeric ceramic blocks with calcined kaolinite clayCalcined clayFlexural strengthGeopolymerWater absorptionThe cement industry is responsible for a considerable part of the emission of gases that cause the greenhouse effect. In this context, geopolymer materials have been the subject of extensive studies, as they are an ecologically sustainable viable alternative to Portland cement. The geopolymer consists of a part rich in silica and alumina and another alkaline activating fraction, not having burning steps in its production chain, which consequently reduces the emission of CO2. Geopolymers also allow the incorporation of specific residues in its precursor part, such as calcined clays. The specimens for this study were produced by the molding process, using commercial metakaolin as the basis for the precursor fraction. After demolding, the test cups were subjected to ambient curing at 25 °C and thermal curing at 80 °C, for periods of 7, 14 and 28 days. The objective of this work was to analyze the behavior of geopolymers specimens against the variation of several parameters such as percentage of calcined clay (CC) incorporation into metakaolin in 10% and 20%, its granulometry in 100 and 200 Mesh, the molar ratio of SiO2/Al2O3, type and period of cure to evaluate technological properties such as resistance to bending, open porosity, water absorption, linear shrinkage and bulk density, aiming for future applications in the production of ceramic bricks. The results showed that an increase in the percentage of CC incorporation contributes to an improvement in the flexural strength, reaching 4.88 MPa to 20%. The molar SiO2/Al2O3 ratio of 3.0 was the most ideal. The importance of this study is linked to the evaluation of several parameters for the incorporation of calcined clay, in order to obtain properties required for future applications in ceramic bricks.UENF - State University of the Northern Rio de Janeiro LAMAV – Advanced Materials Laboratory, Av. Alberto Lamego, 2000, Campos dos GoytacazesUENF - State University of the Northern Rio de Janeiro LECIV – Civil Engineering Laboratory, Av. Alberto Lamego, 2000, Campos dos GoytacazesUFV - Federal University of Viçosa CRP – Rio Paranaíba Campus, Rio ParanaíbaUNESP - São Paulo State University Faculty of Science and Technology - FCT Department of Physics, Rua Roberto Simonsen, 305Polytechnic Institute Far Eastern Federal UniversityUNESP - São Paulo State University Faculty of Science and Technology - FCT Department of Physics, Rua Roberto Simonsen, 305LAMAV – Advanced Materials LaboratoryLECIV – Civil Engineering LaboratoryUniversidade Federal de Viçosa (UFV)Universidade Estadual Paulista (UNESP)Far Eastern Federal UniversityJunior, José Alexandre Linharesde Azevedo, Afonso Rangel GarcezMarvila, Markssuel TeixeiraTeixeira, Silvio Rainho [UNESP]Fediuk, RomanVieira, Carlos Maurício Fontes2022-04-29T08:38:42Z2022-04-29T08:38:42Z2022-06-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.cscm.2022.e00897Case Studies in Construction Materials, v. 16.2214-5095http://hdl.handle.net/11449/23024310.1016/j.cscm.2022.e008972-s2.0-85123033302Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCase Studies in Construction Materialsinfo:eu-repo/semantics/openAccess2024-06-18T18:18:15Zoai:repositorio.unesp.br:11449/230243Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T20:47:35.882929Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Influence of processing parameters variation on the development of geopolymeric ceramic blocks with calcined kaolinite clay
title Influence of processing parameters variation on the development of geopolymeric ceramic blocks with calcined kaolinite clay
spellingShingle Influence of processing parameters variation on the development of geopolymeric ceramic blocks with calcined kaolinite clay
Junior, José Alexandre Linhares
Calcined clay
Flexural strength
Geopolymer
Water absorption
title_short Influence of processing parameters variation on the development of geopolymeric ceramic blocks with calcined kaolinite clay
title_full Influence of processing parameters variation on the development of geopolymeric ceramic blocks with calcined kaolinite clay
title_fullStr Influence of processing parameters variation on the development of geopolymeric ceramic blocks with calcined kaolinite clay
title_full_unstemmed Influence of processing parameters variation on the development of geopolymeric ceramic blocks with calcined kaolinite clay
title_sort Influence of processing parameters variation on the development of geopolymeric ceramic blocks with calcined kaolinite clay
author Junior, José Alexandre Linhares
author_facet Junior, José Alexandre Linhares
de Azevedo, Afonso Rangel Garcez
Marvila, Markssuel Teixeira
Teixeira, Silvio Rainho [UNESP]
Fediuk, Roman
Vieira, Carlos Maurício Fontes
author_role author
author2 de Azevedo, Afonso Rangel Garcez
Marvila, Markssuel Teixeira
Teixeira, Silvio Rainho [UNESP]
Fediuk, Roman
Vieira, Carlos Maurício Fontes
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv LAMAV – Advanced Materials Laboratory
LECIV – Civil Engineering Laboratory
Universidade Federal de Viçosa (UFV)
Universidade Estadual Paulista (UNESP)
Far Eastern Federal University
dc.contributor.author.fl_str_mv Junior, José Alexandre Linhares
de Azevedo, Afonso Rangel Garcez
Marvila, Markssuel Teixeira
Teixeira, Silvio Rainho [UNESP]
Fediuk, Roman
Vieira, Carlos Maurício Fontes
dc.subject.por.fl_str_mv Calcined clay
Flexural strength
Geopolymer
Water absorption
topic Calcined clay
Flexural strength
Geopolymer
Water absorption
description The cement industry is responsible for a considerable part of the emission of gases that cause the greenhouse effect. In this context, geopolymer materials have been the subject of extensive studies, as they are an ecologically sustainable viable alternative to Portland cement. The geopolymer consists of a part rich in silica and alumina and another alkaline activating fraction, not having burning steps in its production chain, which consequently reduces the emission of CO2. Geopolymers also allow the incorporation of specific residues in its precursor part, such as calcined clays. The specimens for this study were produced by the molding process, using commercial metakaolin as the basis for the precursor fraction. After demolding, the test cups were subjected to ambient curing at 25 °C and thermal curing at 80 °C, for periods of 7, 14 and 28 days. The objective of this work was to analyze the behavior of geopolymers specimens against the variation of several parameters such as percentage of calcined clay (CC) incorporation into metakaolin in 10% and 20%, its granulometry in 100 and 200 Mesh, the molar ratio of SiO2/Al2O3, type and period of cure to evaluate technological properties such as resistance to bending, open porosity, water absorption, linear shrinkage and bulk density, aiming for future applications in the production of ceramic bricks. The results showed that an increase in the percentage of CC incorporation contributes to an improvement in the flexural strength, reaching 4.88 MPa to 20%. The molar SiO2/Al2O3 ratio of 3.0 was the most ideal. The importance of this study is linked to the evaluation of several parameters for the incorporation of calcined clay, in order to obtain properties required for future applications in ceramic bricks.
publishDate 2022
dc.date.none.fl_str_mv 2022-04-29T08:38:42Z
2022-04-29T08:38:42Z
2022-06-01
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.cscm.2022.e00897
Case Studies in Construction Materials, v. 16.
2214-5095
http://hdl.handle.net/11449/230243
10.1016/j.cscm.2022.e00897
2-s2.0-85123033302
url http://dx.doi.org/10.1016/j.cscm.2022.e00897
http://hdl.handle.net/11449/230243
identifier_str_mv Case Studies in Construction Materials, v. 16.
2214-5095
10.1016/j.cscm.2022.e00897
2-s2.0-85123033302
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Case Studies in Construction 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
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