Influence of processing parameters variation on the development of geopolymeric ceramic blocks with calcined kaolinite clay
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , |
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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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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1808129249130840064 |