MECHANICAL AND STRUCTURAL EVALUATION OF SECUNDARY REFINING SLAG ADDITION VIA ELECTRIC STEEL WORKS IN CERAMIC MATERIAL AS A FUNCTION OF WASTE STORAGE TIME
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Mix Sustentável (Online) |
Texto Completo: | https://ojs.sites.ufsc.br/index.php/mixsustentavel/article/view/4290 |
Resumo: | Characterization and segregation are steps that indicate the potential for recycling solid waste. For the recycling of secondary refining slag there are no consolidated applications, due to its high density, as well as its expansive characteristic when exposed to the environment in its early stabilizing ages, which makes it possible to value it as a co-product, minimizing waste in landfills and the environmental impact generated. In the laboratory, ceramic specimens containing slag from the secondary refining of an electric steel works were produced in the laboratory to assess their influence of storage time on mechanical and structural properties. The slags and the clay were previously characterized and, in the established lines, the properties of mechanical resistance in flexion, water absorption and apparent porosity wereanalyzed. The linear shrinkage in both samples was greater after drying than after sintering and the results showed a decrease in mechanical strength in the addition of 10 and 15 % slag with 1 day of storage, whereas in 45 days of storage, the properties were better, which indicates the potential for addition in ceramic material under the evaluated conditions. In this sense, the storage time must be extended to ensure the stabilization of the residue, which means minimizing the presence of free lime in the co-product that generates expandability when mixed with water during the drying and sintering processes of the ceramic material. |
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MECHANICAL AND STRUCTURAL EVALUATION OF SECUNDARY REFINING SLAG ADDITION VIA ELECTRIC STEEL WORKS IN CERAMIC MATERIAL AS A FUNCTION OF WASTE STORAGE TIMEAVALIAÇÃO MECÂNICA E ESTRUTURAL DA ADIÇÃO DE ESCÓRIA DO REFINO SECUNDÁRIO VIA ACIARIA ELÉTRICA EM MATERIAL CERÂMICO EM FUNÇÃO DO TEMPO DE ESTOCAGEM DO RESÍDUOSlagRecyclingElectric Steel worksCeramic MaterialCharacterization and segregation are steps that indicate the potential for recycling solid waste. For the recycling of secondary refining slag there are no consolidated applications, due to its high density, as well as its expansive characteristic when exposed to the environment in its early stabilizing ages, which makes it possible to value it as a co-product, minimizing waste in landfills and the environmental impact generated. In the laboratory, ceramic specimens containing slag from the secondary refining of an electric steel works were produced in the laboratory to assess their influence of storage time on mechanical and structural properties. The slags and the clay were previously characterized and, in the established lines, the properties of mechanical resistance in flexion, water absorption and apparent porosity wereanalyzed. The linear shrinkage in both samples was greater after drying than after sintering and the results showed a decrease in mechanical strength in the addition of 10 and 15 % slag with 1 day of storage, whereas in 45 days of storage, the properties were better, which indicates the potential for addition in ceramic material under the evaluated conditions. In this sense, the storage time must be extended to ensure the stabilization of the residue, which means minimizing the presence of free lime in the co-product that generates expandability when mixed with water during the drying and sintering processes of the ceramic material.A caracterização e segregação são etapas que indicam potencialidades da reciclagem de resíduos sólidos. Para a reciclagem de escória de refino secundário não há aplicações consolidadas, o que possibilita valorizá-la como coproduto minimizando resíduos em aterros e o impacto ambiental gerado. Foram produzidos, em laboratório, corpos de prova cerâmicos contendo escória do refino secundário de aciaria elétrica para avaliar a sua influência do tempo de estocagem nas propriedades mecânicas e estruturais. As escórias e a argila foram previamente caracterizadas e, nos traços estabelecidos, analisaram-se as propriedades de resistência mecânica na flexão, absorção de água e porosidade aparente. A retração linear em ambas as escórias foi maior após a secagem do que após a sinterização e, os resultados apresentaram queda na resistência mecânica nas adições de 10 e 15 % de escória com 1 dia de estocagem, enquanto que em 45 dias de estocagem, as propriedades foram melhores, o que indica potencialidade de adição em material cerâmico nas condições avaliadas. Neste sentido, o tempo de estocagem deve ser ampliado para garantir a estabilização do resíduo, o que significa minimizar a presença de cal livre no coproduto que gera expansibilidade quando misturado com água durante os processos de secagem e sinterização do material cerâmico.UFSC - Federal University of Santa Catarina2020-12-21info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/vnd.openxmlformats-officedocument.wordprocessingml.documenthttps://ojs.sites.ufsc.br/index.php/mixsustentavel/article/view/429010.29183/2447-3073.MIX2020.v7.n1.111-124Mix Sustentável; Vol. 7 No. 1 (2020): Mix Sustentável (edição regular); 111-124MIX Sustentável; v. 7 n. 1 (2020): Mix Sustentável (edição regular); 111-1242447-30732447-0899reponame:Mix Sustentável (Online)instname:Universidade Federal de Santa Catarina (UFSC)instacron:UFSCporhttps://ojs.sites.ufsc.br/index.php/mixsustentavel/article/view/4290/3487https://ojs.sites.ufsc.br/index.php/mixsustentavel/article/view/4290/4567Copyright (c) 2020 Alini Luisa Diehl Camacho, Carlos Alberto Mendes Moraes, Marília Duarte Cardosoinfo:eu-repo/semantics/openAccessCamacho, Alini Luisa DiehlMoraes, Carlos Alberto MendesCardoso, Marília Duarte2021-03-12T16:19:59Zoai:ojs.sites.ufsc.br:article/4290Revistahttp://mixsustentavel.paginas.ufsc.br/apresentacao-2/PUBhttp://ojs.sites.ufsc.br/index.php/mixsustentavel/oailisiane.librelotto@ufsc.br||mixsustentavel@gmail.com2447-30732447-0899opendoar:2021-03-12T16:19:59Mix Sustentável (Online) - Universidade Federal de Santa Catarina (UFSC)false |
dc.title.none.fl_str_mv |
MECHANICAL AND STRUCTURAL EVALUATION OF SECUNDARY REFINING SLAG ADDITION VIA ELECTRIC STEEL WORKS IN CERAMIC MATERIAL AS A FUNCTION OF WASTE STORAGE TIME AVALIAÇÃO MECÂNICA E ESTRUTURAL DA ADIÇÃO DE ESCÓRIA DO REFINO SECUNDÁRIO VIA ACIARIA ELÉTRICA EM MATERIAL CERÂMICO EM FUNÇÃO DO TEMPO DE ESTOCAGEM DO RESÍDUO |
title |
MECHANICAL AND STRUCTURAL EVALUATION OF SECUNDARY REFINING SLAG ADDITION VIA ELECTRIC STEEL WORKS IN CERAMIC MATERIAL AS A FUNCTION OF WASTE STORAGE TIME |
spellingShingle |
MECHANICAL AND STRUCTURAL EVALUATION OF SECUNDARY REFINING SLAG ADDITION VIA ELECTRIC STEEL WORKS IN CERAMIC MATERIAL AS A FUNCTION OF WASTE STORAGE TIME Camacho, Alini Luisa Diehl Slag Recycling Electric Steel works Ceramic Material |
title_short |
MECHANICAL AND STRUCTURAL EVALUATION OF SECUNDARY REFINING SLAG ADDITION VIA ELECTRIC STEEL WORKS IN CERAMIC MATERIAL AS A FUNCTION OF WASTE STORAGE TIME |
title_full |
MECHANICAL AND STRUCTURAL EVALUATION OF SECUNDARY REFINING SLAG ADDITION VIA ELECTRIC STEEL WORKS IN CERAMIC MATERIAL AS A FUNCTION OF WASTE STORAGE TIME |
title_fullStr |
MECHANICAL AND STRUCTURAL EVALUATION OF SECUNDARY REFINING SLAG ADDITION VIA ELECTRIC STEEL WORKS IN CERAMIC MATERIAL AS A FUNCTION OF WASTE STORAGE TIME |
title_full_unstemmed |
MECHANICAL AND STRUCTURAL EVALUATION OF SECUNDARY REFINING SLAG ADDITION VIA ELECTRIC STEEL WORKS IN CERAMIC MATERIAL AS A FUNCTION OF WASTE STORAGE TIME |
title_sort |
MECHANICAL AND STRUCTURAL EVALUATION OF SECUNDARY REFINING SLAG ADDITION VIA ELECTRIC STEEL WORKS IN CERAMIC MATERIAL AS A FUNCTION OF WASTE STORAGE TIME |
author |
Camacho, Alini Luisa Diehl |
author_facet |
Camacho, Alini Luisa Diehl Moraes, Carlos Alberto Mendes Cardoso, Marília Duarte |
author_role |
author |
author2 |
Moraes, Carlos Alberto Mendes Cardoso, Marília Duarte |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Camacho, Alini Luisa Diehl Moraes, Carlos Alberto Mendes Cardoso, Marília Duarte |
dc.subject.por.fl_str_mv |
Slag Recycling Electric Steel works Ceramic Material |
topic |
Slag Recycling Electric Steel works Ceramic Material |
description |
Characterization and segregation are steps that indicate the potential for recycling solid waste. For the recycling of secondary refining slag there are no consolidated applications, due to its high density, as well as its expansive characteristic when exposed to the environment in its early stabilizing ages, which makes it possible to value it as a co-product, minimizing waste in landfills and the environmental impact generated. In the laboratory, ceramic specimens containing slag from the secondary refining of an electric steel works were produced in the laboratory to assess their influence of storage time on mechanical and structural properties. The slags and the clay were previously characterized and, in the established lines, the properties of mechanical resistance in flexion, water absorption and apparent porosity wereanalyzed. The linear shrinkage in both samples was greater after drying than after sintering and the results showed a decrease in mechanical strength in the addition of 10 and 15 % slag with 1 day of storage, whereas in 45 days of storage, the properties were better, which indicates the potential for addition in ceramic material under the evaluated conditions. In this sense, the storage time must be extended to ensure the stabilization of the residue, which means minimizing the presence of free lime in the co-product that generates expandability when mixed with water during the drying and sintering processes of the ceramic material. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-21 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.sites.ufsc.br/index.php/mixsustentavel/article/view/4290 10.29183/2447-3073.MIX2020.v7.n1.111-124 |
url |
https://ojs.sites.ufsc.br/index.php/mixsustentavel/article/view/4290 |
identifier_str_mv |
10.29183/2447-3073.MIX2020.v7.n1.111-124 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://ojs.sites.ufsc.br/index.php/mixsustentavel/article/view/4290/3487 https://ojs.sites.ufsc.br/index.php/mixsustentavel/article/view/4290/4567 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2020 Alini Luisa Diehl Camacho, Carlos Alberto Mendes Moraes, Marília Duarte Cardoso info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2020 Alini Luisa Diehl Camacho, Carlos Alberto Mendes Moraes, Marília Duarte Cardoso |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/vnd.openxmlformats-officedocument.wordprocessingml.document |
dc.publisher.none.fl_str_mv |
UFSC - Federal University of Santa Catarina |
publisher.none.fl_str_mv |
UFSC - Federal University of Santa Catarina |
dc.source.none.fl_str_mv |
Mix Sustentável; Vol. 7 No. 1 (2020): Mix Sustentável (edição regular); 111-124 MIX Sustentável; v. 7 n. 1 (2020): Mix Sustentável (edição regular); 111-124 2447-3073 2447-0899 reponame:Mix Sustentável (Online) instname:Universidade Federal de Santa Catarina (UFSC) instacron:UFSC |
instname_str |
Universidade Federal de Santa Catarina (UFSC) |
instacron_str |
UFSC |
institution |
UFSC |
reponame_str |
Mix Sustentável (Online) |
collection |
Mix Sustentável (Online) |
repository.name.fl_str_mv |
Mix Sustentável (Online) - Universidade Federal de Santa Catarina (UFSC) |
repository.mail.fl_str_mv |
lisiane.librelotto@ufsc.br||mixsustentavel@gmail.com |
_version_ |
1798325230586822656 |