Effect of different additives on the properties of alumina-spinel castables

Detalhes bibliográficos
Autor(a) principal: Ghasemzadeh,M.
Data de Publicação: 2012
Outros Autores: Nemati,A.
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=S0366-69132012000400012
Resumo: Physical properties of low cement castable containing 22 wt.% Al2O3-rich MgO-Al2O3 spinel and 1.7 wt.% CaO with addition of polyacrylates, castament FS20, TPP and citric acid were investigated. Results showed castables including castament FS20 have higher flow values and better final properties comparing with castables including Darvan 7S and TPP. Also in this study we investigated the effect of addition of microsilica up to 4 wt.% on the properties of alumina-spinel castables. Microsilica is the finest particles in the system and due to suitable distribution of microsilica among other particle the open porosity reduced and mechanical strength increased. Slag penetrations resistance increased with increasing microsilica addition by forming a densification layer right behind the hot face of castables in service.
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spelling Effect of different additives on the properties of alumina-spinel castablesrefractory castablesmicrosilicaalumina-spinelPhysical properties of low cement castable containing 22 wt.% Al2O3-rich MgO-Al2O3 spinel and 1.7 wt.% CaO with addition of polyacrylates, castament FS20, TPP and citric acid were investigated. Results showed castables including castament FS20 have higher flow values and better final properties comparing with castables including Darvan 7S and TPP. Also in this study we investigated the effect of addition of microsilica up to 4 wt.% on the properties of alumina-spinel castables. Microsilica is the finest particles in the system and due to suitable distribution of microsilica among other particle the open porosity reduced and mechanical strength increased. Slag penetrations resistance increased with increasing microsilica addition by forming a densification layer right behind the hot face of castables in service.Associação Brasileira de Cerâmica2012-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132012000400012Cerâmica v.58 n.348 2012reponame:Cerâmica (São Paulo. Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/S0366-69132012000400012info:eu-repo/semantics/openAccessGhasemzadeh,M.Nemati,A.eng2013-01-23T00:00:00Zoai:scielo:S0366-69132012000400012Revistahttps://www.scielo.br/j/ce/PUBhttps://old.scielo.br/oai/scielo-oai.phpceram.abc@gmail.com||ceram.abc@gmail.com1678-45530366-6913opendoar:2013-01-23T00:00Cerâmica (São Paulo. Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Effect of different additives on the properties of alumina-spinel castables
title Effect of different additives on the properties of alumina-spinel castables
spellingShingle Effect of different additives on the properties of alumina-spinel castables
Ghasemzadeh,M.
refractory castables
microsilica
alumina-spinel
title_short Effect of different additives on the properties of alumina-spinel castables
title_full Effect of different additives on the properties of alumina-spinel castables
title_fullStr Effect of different additives on the properties of alumina-spinel castables
title_full_unstemmed Effect of different additives on the properties of alumina-spinel castables
title_sort Effect of different additives on the properties of alumina-spinel castables
author Ghasemzadeh,M.
author_facet Ghasemzadeh,M.
Nemati,A.
author_role author
author2 Nemati,A.
author2_role author
dc.contributor.author.fl_str_mv Ghasemzadeh,M.
Nemati,A.
dc.subject.por.fl_str_mv refractory castables
microsilica
alumina-spinel
topic refractory castables
microsilica
alumina-spinel
description Physical properties of low cement castable containing 22 wt.% Al2O3-rich MgO-Al2O3 spinel and 1.7 wt.% CaO with addition of polyacrylates, castament FS20, TPP and citric acid were investigated. Results showed castables including castament FS20 have higher flow values and better final properties comparing with castables including Darvan 7S and TPP. Also in this study we investigated the effect of addition of microsilica up to 4 wt.% on the properties of alumina-spinel castables. Microsilica is the finest particles in the system and due to suitable distribution of microsilica among other particle the open porosity reduced and mechanical strength increased. Slag penetrations resistance increased with increasing microsilica addition by forming a densification layer right behind the hot face of castables in service.
publishDate 2012
dc.date.none.fl_str_mv 2012-12-01
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=S0366-69132012000400012
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0366-69132012000400012
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0366-69132012000400012
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.58 n.348 2012
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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