Influence of electric arc furnace dust and lime kiln waste in Portland cement hydration
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Ambiente construído (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-86212020000400225 |
Resumo: | Abstract Studies have indicated that the use of electric arc furnace dust (EAFD) results in a delay in the hydration time of Portland cement. Calcium-rich waste such as lime kiln waste (LKW) is one of the techniques used to offset this delay as it accounts for the lack of this element in calcium silicate hydrate (C-S-H) production in the mixture. The objective of this study was to evaluate the influence of electric arc furnace dust (EAFD) and lime kiln waste (LKW) in the hydration process of Portland cement pastes and their influence in setting time and hydration heat. The methodology used required several steps: physiochemical and micro-structural characterization of waste samples; definition and production cement pastes with different levels of waste substitution and a reference paste and evaluation of the cement pastes with respect to setting time and hydration heat. Results showed that the substitution of 1% EAFD with or without LKW presented similar hydration heats as the reference paste. This indicated that EAFD+LKW substitution would not affect substantially the hydration reactions of cement and could allow waste recycling in construction materials. |
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Influence of electric arc furnace dust and lime kiln waste in Portland cement hydrationElectric arc furnace dustLime kiln wastePortland cement hydrationPortland cement pastesAbstract Studies have indicated that the use of electric arc furnace dust (EAFD) results in a delay in the hydration time of Portland cement. Calcium-rich waste such as lime kiln waste (LKW) is one of the techniques used to offset this delay as it accounts for the lack of this element in calcium silicate hydrate (C-S-H) production in the mixture. The objective of this study was to evaluate the influence of electric arc furnace dust (EAFD) and lime kiln waste (LKW) in the hydration process of Portland cement pastes and their influence in setting time and hydration heat. The methodology used required several steps: physiochemical and micro-structural characterization of waste samples; definition and production cement pastes with different levels of waste substitution and a reference paste and evaluation of the cement pastes with respect to setting time and hydration heat. Results showed that the substitution of 1% EAFD with or without LKW presented similar hydration heats as the reference paste. This indicated that EAFD+LKW substitution would not affect substantially the hydration reactions of cement and could allow waste recycling in construction materials.Associação Nacional de Tecnologia do Ambiente Construído - ANTAC2020-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-86212020000400225Ambiente Construído v.20 n.4 2020reponame:Ambiente construído (Online)instname:Associação Nacional de Tecnologia do Ambiente Construído (ANTAC)instacron:ANTAC10.1590/s1678-86212020000400469info:eu-repo/semantics/openAccessMetz,Josué ClaudioMaciel,Elenize FerreiraGarbin,MariliseModolo,Regina Célia EspinosaMoraes,Carlos Alberto MendesGomes,Lucas BonanBrehm,Feliciane Andradeeng2020-10-26T00:00:00Zoai:scielo:S1678-86212020000400225Revistahttps://seer.ufrgs.br/ambienteconstruidohttps://old.scielo.br/oai/scielo-oai.php||ambienteconstruido@ufrgs.br1678-86211415-8876opendoar:2020-10-26T00:00Ambiente construído (Online) - Associação Nacional de Tecnologia do Ambiente Construído (ANTAC)false |
dc.title.none.fl_str_mv |
Influence of electric arc furnace dust and lime kiln waste in Portland cement hydration |
title |
Influence of electric arc furnace dust and lime kiln waste in Portland cement hydration |
spellingShingle |
Influence of electric arc furnace dust and lime kiln waste in Portland cement hydration Metz,Josué Claudio Electric arc furnace dust Lime kiln waste Portland cement hydration Portland cement pastes |
title_short |
Influence of electric arc furnace dust and lime kiln waste in Portland cement hydration |
title_full |
Influence of electric arc furnace dust and lime kiln waste in Portland cement hydration |
title_fullStr |
Influence of electric arc furnace dust and lime kiln waste in Portland cement hydration |
title_full_unstemmed |
Influence of electric arc furnace dust and lime kiln waste in Portland cement hydration |
title_sort |
Influence of electric arc furnace dust and lime kiln waste in Portland cement hydration |
author |
Metz,Josué Claudio |
author_facet |
Metz,Josué Claudio Maciel,Elenize Ferreira Garbin,Marilise Modolo,Regina Célia Espinosa Moraes,Carlos Alberto Mendes Gomes,Lucas Bonan Brehm,Feliciane Andrade |
author_role |
author |
author2 |
Maciel,Elenize Ferreira Garbin,Marilise Modolo,Regina Célia Espinosa Moraes,Carlos Alberto Mendes Gomes,Lucas Bonan Brehm,Feliciane Andrade |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Metz,Josué Claudio Maciel,Elenize Ferreira Garbin,Marilise Modolo,Regina Célia Espinosa Moraes,Carlos Alberto Mendes Gomes,Lucas Bonan Brehm,Feliciane Andrade |
dc.subject.por.fl_str_mv |
Electric arc furnace dust Lime kiln waste Portland cement hydration Portland cement pastes |
topic |
Electric arc furnace dust Lime kiln waste Portland cement hydration Portland cement pastes |
description |
Abstract Studies have indicated that the use of electric arc furnace dust (EAFD) results in a delay in the hydration time of Portland cement. Calcium-rich waste such as lime kiln waste (LKW) is one of the techniques used to offset this delay as it accounts for the lack of this element in calcium silicate hydrate (C-S-H) production in the mixture. The objective of this study was to evaluate the influence of electric arc furnace dust (EAFD) and lime kiln waste (LKW) in the hydration process of Portland cement pastes and their influence in setting time and hydration heat. The methodology used required several steps: physiochemical and micro-structural characterization of waste samples; definition and production cement pastes with different levels of waste substitution and a reference paste and evaluation of the cement pastes with respect to setting time and hydration heat. Results showed that the substitution of 1% EAFD with or without LKW presented similar hydration heats as the reference paste. This indicated that EAFD+LKW substitution would not affect substantially the hydration reactions of cement and could allow waste recycling in construction materials. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-01 |
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=S1678-86212020000400225 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-86212020000400225 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/s1678-86212020000400469 |
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 Nacional de Tecnologia do Ambiente Construído - ANTAC |
publisher.none.fl_str_mv |
Associação Nacional de Tecnologia do Ambiente Construído - ANTAC |
dc.source.none.fl_str_mv |
Ambiente Construído v.20 n.4 2020 reponame:Ambiente construído (Online) instname:Associação Nacional de Tecnologia do Ambiente Construído (ANTAC) instacron:ANTAC |
instname_str |
Associação Nacional de Tecnologia do Ambiente Construído (ANTAC) |
instacron_str |
ANTAC |
institution |
ANTAC |
reponame_str |
Ambiente construído (Online) |
collection |
Ambiente construído (Online) |
repository.name.fl_str_mv |
Ambiente construído (Online) - Associação Nacional de Tecnologia do Ambiente Construído (ANTAC) |
repository.mail.fl_str_mv |
||ambienteconstruido@ufrgs.br |
_version_ |
1754209104841146368 |