Sensitivity Analysis of Life Cycle impacts distribution methods choice applied to silica fume production
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/200745 |
Resumo: | The construction sector is known as an important consumer of natural resources. The use of by-products from different production chains in the sector is encouraged, promoting a reduction in the extraction of natural resources, reducing the need for residues disposal and enhancing circularity. Silica fume is a by-product from the smelting process in the silicon and ferrosilicon industry, commonly used as concrete supplementary cementitious material, which provides chemical and physical effects on concrete microstructure. When LCA evaluation is conducted, different impact distribution models may be applied to assess the potential impact of the by-productss. Although their benefits are recognized, some studies still report them as burden free, having no allocated impacts . Thereby, the aim of this paper is to evaluate the differences in silica fume life cycle impacts by analyzing three scenarios from cradle to gate, considering the modeling procedures described by ISO 14040, the Cut-off model from Ecoinvent version 3.3 and the impact assessment method CML v.4.4, according to the CEN EN 15804 recommended categories. Results enhance the understanding regarding model selection and demonstrate that the selection of the proper distribution model is key, considering that this may lead to important differences in the results. |
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Timm, Janaine Fernanda GaelzerMorales, Michele Ferreira DiasPassuello, Ana Carolina Badalotti2019-10-17T03:51:07Z20191755-1315http://hdl.handle.net/10183/200745001104054The construction sector is known as an important consumer of natural resources. The use of by-products from different production chains in the sector is encouraged, promoting a reduction in the extraction of natural resources, reducing the need for residues disposal and enhancing circularity. Silica fume is a by-product from the smelting process in the silicon and ferrosilicon industry, commonly used as concrete supplementary cementitious material, which provides chemical and physical effects on concrete microstructure. When LCA evaluation is conducted, different impact distribution models may be applied to assess the potential impact of the by-productss. Although their benefits are recognized, some studies still report them as burden free, having no allocated impacts . Thereby, the aim of this paper is to evaluate the differences in silica fume life cycle impacts by analyzing three scenarios from cradle to gate, considering the modeling procedures described by ISO 14040, the Cut-off model from Ecoinvent version 3.3 and the impact assessment method CML v.4.4, according to the CEN EN 15804 recommended categories. Results enhance the understanding regarding model selection and demonstrate that the selection of the proper distribution model is key, considering that this may lead to important differences in the results.application/pdfengIOP Conference series : earth and environmental science. Bristol, UK. Vol. 323 (2019), e012131, 8 p.Avaliação do ciclo de vidaSílica ativaSensitivity Analysis of Life Cycle impacts distribution methods choice applied to silica fume productionEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001104054.pdf.txt001104054.pdf.txtExtracted Texttext/plain30579http://www.lume.ufrgs.br/bitstream/10183/200745/2/001104054.pdf.txtd738c5e2e1152c00e72003a0515a6369MD52ORIGINAL001104054.pdfTexto completo (inglês)application/pdf903248http://www.lume.ufrgs.br/bitstream/10183/200745/1/001104054.pdff1bf6aea99c2c438b14d41c115ac9d5eMD5110183/2007452019-10-18 03:53:09.904996oai:www.lume.ufrgs.br:10183/200745Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2019-10-18T06:53:09Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Sensitivity Analysis of Life Cycle impacts distribution methods choice applied to silica fume production |
title |
Sensitivity Analysis of Life Cycle impacts distribution methods choice applied to silica fume production |
spellingShingle |
Sensitivity Analysis of Life Cycle impacts distribution methods choice applied to silica fume production Timm, Janaine Fernanda Gaelzer Avaliação do ciclo de vida Sílica ativa |
title_short |
Sensitivity Analysis of Life Cycle impacts distribution methods choice applied to silica fume production |
title_full |
Sensitivity Analysis of Life Cycle impacts distribution methods choice applied to silica fume production |
title_fullStr |
Sensitivity Analysis of Life Cycle impacts distribution methods choice applied to silica fume production |
title_full_unstemmed |
Sensitivity Analysis of Life Cycle impacts distribution methods choice applied to silica fume production |
title_sort |
Sensitivity Analysis of Life Cycle impacts distribution methods choice applied to silica fume production |
author |
Timm, Janaine Fernanda Gaelzer |
author_facet |
Timm, Janaine Fernanda Gaelzer Morales, Michele Ferreira Dias Passuello, Ana Carolina Badalotti |
author_role |
author |
author2 |
Morales, Michele Ferreira Dias Passuello, Ana Carolina Badalotti |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Timm, Janaine Fernanda Gaelzer Morales, Michele Ferreira Dias Passuello, Ana Carolina Badalotti |
dc.subject.por.fl_str_mv |
Avaliação do ciclo de vida Sílica ativa |
topic |
Avaliação do ciclo de vida Sílica ativa |
description |
The construction sector is known as an important consumer of natural resources. The use of by-products from different production chains in the sector is encouraged, promoting a reduction in the extraction of natural resources, reducing the need for residues disposal and enhancing circularity. Silica fume is a by-product from the smelting process in the silicon and ferrosilicon industry, commonly used as concrete supplementary cementitious material, which provides chemical and physical effects on concrete microstructure. When LCA evaluation is conducted, different impact distribution models may be applied to assess the potential impact of the by-productss. Although their benefits are recognized, some studies still report them as burden free, having no allocated impacts . Thereby, the aim of this paper is to evaluate the differences in silica fume life cycle impacts by analyzing three scenarios from cradle to gate, considering the modeling procedures described by ISO 14040, the Cut-off model from Ecoinvent version 3.3 and the impact assessment method CML v.4.4, according to the CEN EN 15804 recommended categories. Results enhance the understanding regarding model selection and demonstrate that the selection of the proper distribution model is key, considering that this may lead to important differences in the results. |
publishDate |
2019 |
dc.date.accessioned.fl_str_mv |
2019-10-17T03:51:07Z |
dc.date.issued.fl_str_mv |
2019 |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
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info:eu-repo/semantics/publishedVersion |
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http://hdl.handle.net/10183/200745 |
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1755-1315 |
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001104054 |
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eng |
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IOP Conference series : earth and environmental science. Bristol, UK. Vol. 323 (2019), e012131, 8 p. |
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openAccess |
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