Steel slag and recycled concrete aggregates: replacing quarries to supply sustainable materials for the asphalt paving industry

Bibliographic Details
Main Author: Loureiro, Carlos Daniel Aleixo
Publication Date: 2022
Other Authors: Moura, Caroline Fernandes Nunes, Rodrigues, Mafalda, Martinho, Fernando C. G., Silva, Hugo M. R. D., Oliveira, Joel R. M.
Format: Article
Language: eng
Source: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Download full: https://hdl.handle.net/1822/79393
Summary: Various researchers are developing efforts to integrate waste and by-products as alternative materials in road construction and maintenance, reducing environmental impacts and promoting a circular economy. Among the alternative materials that several authors have studied regarding their use as partial or total substitutes for natural aggregates in the asphalt paving industry, the steel slag aggregate (SSA) and recycled concrete aggregate (RCA) from construction demolition waste (CDW) stand out. This paper reviews and discusses the characteristics and performance of these materials when used as aggregates in asphalt mixtures. Based on the various studies analyzed, it was possible to conclude that incorporating SSA or RCA in asphalt mixtures for road pavements has functional, mechanical, and environmental advantages. However, it is essential to consider some possible drawbacks of these aggregates that are discussed in this paper, to define the acceptable uses of SSA and RCA as sustainable feedstocks for road paving works.
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spelling Steel slag and recycled concrete aggregates: replacing quarries to supply sustainable materials for the asphalt paving industrysteel slag aggregaterecycled concrete aggregateswaste productsasphalt mixturesustainable materialsScience & TechnologyVarious researchers are developing efforts to integrate waste and by-products as alternative materials in road construction and maintenance, reducing environmental impacts and promoting a circular economy. Among the alternative materials that several authors have studied regarding their use as partial or total substitutes for natural aggregates in the asphalt paving industry, the steel slag aggregate (SSA) and recycled concrete aggregate (RCA) from construction demolition waste (CDW) stand out. This paper reviews and discusses the characteristics and performance of these materials when used as aggregates in asphalt mixtures. Based on the various studies analyzed, it was possible to conclude that incorporating SSA or RCA in asphalt mixtures for road pavements has functional, mechanical, and environmental advantages. However, it is essential to consider some possible drawbacks of these aggregates that are discussed in this paper, to define the acceptable uses of SSA and RCA as sustainable feedstocks for road paving works.This research was funded by the "Environment, Climate Change and Low Carbon Economy Programme-Environment Programme" (EEA financial mechanism 2014-2021) through the Funding Mechanism Commission established by Iceland, Liechtenstein, Norway, and Portugal, under the scope of project CirMat-CIRcular aggregates for sustainable road and building MATerials. This study was also supported by Fundacao para a Ciencia e a Tecnologia through the Ph.D. grants number 2021.06428.BD and 2021.08004.BD.MDPIUniversidade do MinhoLoureiro, Carlos Daniel AleixoMoura, Caroline Fernandes NunesRodrigues, MafaldaMartinho, Fernando C. G.Silva, Hugo M. R. D.Oliveira, Joel R. M.2022-05-012022-05-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/79393engLoureiro, C.D.A.; Moura, C.F.N.; Rodrigues, M.; Martinho, F.C.G.; Silva, H.M.R.D.; Oliveira, J.R.M. Steel Slag and Recycled Concrete Aggregates: Replacing Quarries to Supply Sustainable Materials for the Asphalt Paving Industry. Sustainability 2022, 14, 5022. https://doi.org/10.3390/su140950222071-105010.3390/su14095022https://www.mdpi.com/2071-1050/14/9/5022info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:01:14Zoai:repositorium.sdum.uminho.pt:1822/79393Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:51:09.799533Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Steel slag and recycled concrete aggregates: replacing quarries to supply sustainable materials for the asphalt paving industry
title Steel slag and recycled concrete aggregates: replacing quarries to supply sustainable materials for the asphalt paving industry
spellingShingle Steel slag and recycled concrete aggregates: replacing quarries to supply sustainable materials for the asphalt paving industry
Loureiro, Carlos Daniel Aleixo
steel slag aggregate
recycled concrete aggregates
waste products
asphalt mixture
sustainable materials
Science & Technology
title_short Steel slag and recycled concrete aggregates: replacing quarries to supply sustainable materials for the asphalt paving industry
title_full Steel slag and recycled concrete aggregates: replacing quarries to supply sustainable materials for the asphalt paving industry
title_fullStr Steel slag and recycled concrete aggregates: replacing quarries to supply sustainable materials for the asphalt paving industry
title_full_unstemmed Steel slag and recycled concrete aggregates: replacing quarries to supply sustainable materials for the asphalt paving industry
title_sort Steel slag and recycled concrete aggregates: replacing quarries to supply sustainable materials for the asphalt paving industry
author Loureiro, Carlos Daniel Aleixo
author_facet Loureiro, Carlos Daniel Aleixo
Moura, Caroline Fernandes Nunes
Rodrigues, Mafalda
Martinho, Fernando C. G.
Silva, Hugo M. R. D.
Oliveira, Joel R. M.
author_role author
author2 Moura, Caroline Fernandes Nunes
Rodrigues, Mafalda
Martinho, Fernando C. G.
Silva, Hugo M. R. D.
Oliveira, Joel R. M.
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Loureiro, Carlos Daniel Aleixo
Moura, Caroline Fernandes Nunes
Rodrigues, Mafalda
Martinho, Fernando C. G.
Silva, Hugo M. R. D.
Oliveira, Joel R. M.
dc.subject.por.fl_str_mv steel slag aggregate
recycled concrete aggregates
waste products
asphalt mixture
sustainable materials
Science & Technology
topic steel slag aggregate
recycled concrete aggregates
waste products
asphalt mixture
sustainable materials
Science & Technology
description Various researchers are developing efforts to integrate waste and by-products as alternative materials in road construction and maintenance, reducing environmental impacts and promoting a circular economy. Among the alternative materials that several authors have studied regarding their use as partial or total substitutes for natural aggregates in the asphalt paving industry, the steel slag aggregate (SSA) and recycled concrete aggregate (RCA) from construction demolition waste (CDW) stand out. This paper reviews and discusses the characteristics and performance of these materials when used as aggregates in asphalt mixtures. Based on the various studies analyzed, it was possible to conclude that incorporating SSA or RCA in asphalt mixtures for road pavements has functional, mechanical, and environmental advantages. However, it is essential to consider some possible drawbacks of these aggregates that are discussed in this paper, to define the acceptable uses of SSA and RCA as sustainable feedstocks for road paving works.
publishDate 2022
dc.date.none.fl_str_mv 2022-05-01
2022-05-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://hdl.handle.net/1822/79393
url https://hdl.handle.net/1822/79393
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Loureiro, C.D.A.; Moura, C.F.N.; Rodrigues, M.; Martinho, F.C.G.; Silva, H.M.R.D.; Oliveira, J.R.M. Steel Slag and Recycled Concrete Aggregates: Replacing Quarries to Supply Sustainable Materials for the Asphalt Paving Industry. Sustainability 2022, 14, 5022. https://doi.org/10.3390/su14095022
2071-1050
10.3390/su14095022
https://www.mdpi.com/2071-1050/14/9/5022
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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