Analysis of CO2 emissions and waste elimination capacity of different recycling strategies applied in ready-mixed concrete plants

Detalhes bibliográficos
Autor(a) principal: Vieira,Luiz de Brito Prado
Data de Publicação: 2022
Outros Autores: Figueiredo,Antônio Domingues de, Cirilo,Fabio, Verdiani,Vicente Bueno, Lima,Leonardo Moreira de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Revista IBRACON de Estruturas e Materiais
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952022000600210
Resumo: abstract: The volume of waste generated by ready-mix concrete (RMC) plants in Brazil is significant. According to Oliveira et al. [1] waste from construction and demolition in Brazil was approximately 45-79 million tons and most of those waste is sent to landfills (79%). This study presents an assessment of the RMC plant waste reduction capacity using 3 different methods: (a) reuse of concrete in the fresh state by using hydration-stabilizing admixtures (HSA); (b) recycling of concrete aggregates by separating the aggregates from the cement paste before the concrete hardens; (c) recycling of hardened concrete as aggregates through the crushing process. Results indicated that concretes with compressive strengths up to 25.0 MPa are more effective in reducing CO2 emission and consequently CO2 footprint when using method (b); if evaluating higher resistance classes, method (a) was the most effective.
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spelling Analysis of CO2 emissions and waste elimination capacity of different recycling strategies applied in ready-mixed concrete plantsready mix concrete wasteCO2 footprintfield testrecycled aggregatehydration stabilizing admixturesabstract: The volume of waste generated by ready-mix concrete (RMC) plants in Brazil is significant. According to Oliveira et al. [1] waste from construction and demolition in Brazil was approximately 45-79 million tons and most of those waste is sent to landfills (79%). This study presents an assessment of the RMC plant waste reduction capacity using 3 different methods: (a) reuse of concrete in the fresh state by using hydration-stabilizing admixtures (HSA); (b) recycling of concrete aggregates by separating the aggregates from the cement paste before the concrete hardens; (c) recycling of hardened concrete as aggregates through the crushing process. Results indicated that concretes with compressive strengths up to 25.0 MPa are more effective in reducing CO2 emission and consequently CO2 footprint when using method (b); if evaluating higher resistance classes, method (a) was the most effective.IBRACON - Instituto Brasileiro do Concreto2022-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952022000600210Revista IBRACON de Estruturas e Materiais v.15 n.6 2022reponame:Revista IBRACON de Estruturas e Materiaisinstname:Instituto Brasileiro do Concreto (IBRACON)instacron:IBRACON10.1590/s1983-41952022000600011info:eu-repo/semantics/openAccessVieira,Luiz de Brito PradoFigueiredo,Antônio Domingues deCirilo,FabioVerdiani,Vicente BuenoLima,Leonardo Moreira deeng2022-11-24T00:00:00Zoai:scielo:S1983-41952022000600210Revistahttp://www.revistas.ibracon.org.br/index.php/riemhttps://old.scielo.br/oai/scielo-oai.phpeditores.riem@gmail.com||arlene@ibracon.org.br1983-41951983-4195opendoar:2022-11-24T00:00Revista IBRACON de Estruturas e Materiais - Instituto Brasileiro do Concreto (IBRACON)false
dc.title.none.fl_str_mv Analysis of CO2 emissions and waste elimination capacity of different recycling strategies applied in ready-mixed concrete plants
title Analysis of CO2 emissions and waste elimination capacity of different recycling strategies applied in ready-mixed concrete plants
spellingShingle Analysis of CO2 emissions and waste elimination capacity of different recycling strategies applied in ready-mixed concrete plants
Vieira,Luiz de Brito Prado
ready mix concrete waste
CO2 footprint
field test
recycled aggregate
hydration stabilizing admixtures
title_short Analysis of CO2 emissions and waste elimination capacity of different recycling strategies applied in ready-mixed concrete plants
title_full Analysis of CO2 emissions and waste elimination capacity of different recycling strategies applied in ready-mixed concrete plants
title_fullStr Analysis of CO2 emissions and waste elimination capacity of different recycling strategies applied in ready-mixed concrete plants
title_full_unstemmed Analysis of CO2 emissions and waste elimination capacity of different recycling strategies applied in ready-mixed concrete plants
title_sort Analysis of CO2 emissions and waste elimination capacity of different recycling strategies applied in ready-mixed concrete plants
author Vieira,Luiz de Brito Prado
author_facet Vieira,Luiz de Brito Prado
Figueiredo,Antônio Domingues de
Cirilo,Fabio
Verdiani,Vicente Bueno
Lima,Leonardo Moreira de
author_role author
author2 Figueiredo,Antônio Domingues de
Cirilo,Fabio
Verdiani,Vicente Bueno
Lima,Leonardo Moreira de
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Vieira,Luiz de Brito Prado
Figueiredo,Antônio Domingues de
Cirilo,Fabio
Verdiani,Vicente Bueno
Lima,Leonardo Moreira de
dc.subject.por.fl_str_mv ready mix concrete waste
CO2 footprint
field test
recycled aggregate
hydration stabilizing admixtures
topic ready mix concrete waste
CO2 footprint
field test
recycled aggregate
hydration stabilizing admixtures
description abstract: The volume of waste generated by ready-mix concrete (RMC) plants in Brazil is significant. According to Oliveira et al. [1] waste from construction and demolition in Brazil was approximately 45-79 million tons and most of those waste is sent to landfills (79%). This study presents an assessment of the RMC plant waste reduction capacity using 3 different methods: (a) reuse of concrete in the fresh state by using hydration-stabilizing admixtures (HSA); (b) recycling of concrete aggregates by separating the aggregates from the cement paste before the concrete hardens; (c) recycling of hardened concrete as aggregates through the crushing process. Results indicated that concretes with compressive strengths up to 25.0 MPa are more effective in reducing CO2 emission and consequently CO2 footprint when using method (b); if evaluating higher resistance classes, method (a) was the most effective.
publishDate 2022
dc.date.none.fl_str_mv 2022-01-01
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=S1983-41952022000600210
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1983-41952022000600210
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/s1983-41952022000600011
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 IBRACON - Instituto Brasileiro do Concreto
publisher.none.fl_str_mv IBRACON - Instituto Brasileiro do Concreto
dc.source.none.fl_str_mv Revista IBRACON de Estruturas e Materiais v.15 n.6 2022
reponame:Revista IBRACON de Estruturas e Materiais
instname:Instituto Brasileiro do Concreto (IBRACON)
instacron:IBRACON
instname_str Instituto Brasileiro do Concreto (IBRACON)
instacron_str IBRACON
institution IBRACON
reponame_str Revista IBRACON de Estruturas e Materiais
collection Revista IBRACON de Estruturas e Materiais
repository.name.fl_str_mv Revista IBRACON de Estruturas e Materiais - Instituto Brasileiro do Concreto (IBRACON)
repository.mail.fl_str_mv editores.riem@gmail.com||arlene@ibracon.org.br
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