Effect of sawdust as porosity agent on final properties of geopolymers

Detalhes bibliográficos
Autor(a) principal: Pereira,D. C.
Data de Publicação: 2019
Outros Autores: Amaral-Labat,G., Silva,G. F. B. Lenz e
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Cerâmica (São Paulo. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132019000500104
Resumo: Abstract The geopolymers synthesis are based on geopolymerization, a sequence of reactions processed in an alkaline medium through oligomers providing a three-dimensional molecular structure. In this work, the polycondensation of metakaolin was performed with alkaline activators (NaOH and sodium silicate), wood sawdust and other additives. Two different compositions were evaluated after and before sintering at a high temperature (850 °C). The effect of sawdust addition and the thermal treatment of geopolymers were evaluated by scanning electronic microscopy, X-ray diffraction, mechanical properties, apparent density and porosity by different characterization techniques to guide of development of high porous and low-density materials for thermal and noise control application on building/home construction engineering applications.
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spelling Effect of sawdust as porosity agent on final properties of geopolymersgeopolymeractivated metakaolinrefractory materialsawdustAbstract The geopolymers synthesis are based on geopolymerization, a sequence of reactions processed in an alkaline medium through oligomers providing a three-dimensional molecular structure. In this work, the polycondensation of metakaolin was performed with alkaline activators (NaOH and sodium silicate), wood sawdust and other additives. Two different compositions were evaluated after and before sintering at a high temperature (850 °C). The effect of sawdust addition and the thermal treatment of geopolymers were evaluated by scanning electronic microscopy, X-ray diffraction, mechanical properties, apparent density and porosity by different characterization techniques to guide of development of high porous and low-density materials for thermal and noise control application on building/home construction engineering applications.Associação Brasileira de Cerâmica2019-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132019000500104Cerâmica v.65 suppl.1 2019reponame:Cerâmica (São Paulo. Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/0366-6913201965s12607info:eu-repo/semantics/openAccessPereira,D. C.Amaral-Labat,G.Silva,G. F. B. Lenz eeng2019-03-18T00:00:00Zoai:scielo:S0366-69132019000500104Revistahttps://www.scielo.br/j/ce/PUBhttps://old.scielo.br/oai/scielo-oai.phpceram.abc@gmail.com||ceram.abc@gmail.com1678-45530366-6913opendoar:2019-03-18T00:00Cerâmica (São Paulo. Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Effect of sawdust as porosity agent on final properties of geopolymers
title Effect of sawdust as porosity agent on final properties of geopolymers
spellingShingle Effect of sawdust as porosity agent on final properties of geopolymers
Pereira,D. C.
geopolymer
activated metakaolin
refractory material
sawdust
title_short Effect of sawdust as porosity agent on final properties of geopolymers
title_full Effect of sawdust as porosity agent on final properties of geopolymers
title_fullStr Effect of sawdust as porosity agent on final properties of geopolymers
title_full_unstemmed Effect of sawdust as porosity agent on final properties of geopolymers
title_sort Effect of sawdust as porosity agent on final properties of geopolymers
author Pereira,D. C.
author_facet Pereira,D. C.
Amaral-Labat,G.
Silva,G. F. B. Lenz e
author_role author
author2 Amaral-Labat,G.
Silva,G. F. B. Lenz e
author2_role author
author
dc.contributor.author.fl_str_mv Pereira,D. C.
Amaral-Labat,G.
Silva,G. F. B. Lenz e
dc.subject.por.fl_str_mv geopolymer
activated metakaolin
refractory material
sawdust
topic geopolymer
activated metakaolin
refractory material
sawdust
description Abstract The geopolymers synthesis are based on geopolymerization, a sequence of reactions processed in an alkaline medium through oligomers providing a three-dimensional molecular structure. In this work, the polycondensation of metakaolin was performed with alkaline activators (NaOH and sodium silicate), wood sawdust and other additives. Two different compositions were evaluated after and before sintering at a high temperature (850 °C). The effect of sawdust addition and the thermal treatment of geopolymers were evaluated by scanning electronic microscopy, X-ray diffraction, mechanical properties, apparent density and porosity by different characterization techniques to guide of development of high porous and low-density materials for thermal and noise control application on building/home construction engineering applications.
publishDate 2019
dc.date.none.fl_str_mv 2019-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132019000500104
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132019000500104
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/0366-6913201965s12607
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Associação Brasileira de Cerâmica
publisher.none.fl_str_mv Associação Brasileira de Cerâmica
dc.source.none.fl_str_mv Cerâmica v.65 suppl.1 2019
reponame:Cerâmica (São Paulo. Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Cerâmica (São Paulo. Online)
collection Cerâmica (São Paulo. Online)
repository.name.fl_str_mv Cerâmica (São Paulo. Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv ceram.abc@gmail.com||ceram.abc@gmail.com
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