Repository logo
 
Publication

Effect of the source concrete with ASR degradation on the mechanical and physical properties of coarse recycled aggregate

2020-08Journal article Open access
Simple item page
datacite.subject.fosEngenharia e Tecnologia::Engenharia Civil
datacite.subject.fosCiências Naturais::Outras Ciências Naturais
dc.contributor.authorSantos, M. Barreto
dc.contributor.authorBrito, J. de
dc.contributor.authorSilva, A. Santos
dc.contributor.authorHawreen, A.
dc.date.accessioned2025-07-14T14:36:50Z
dc.date.available2025-07-14T14:36:50Z
dc.date.issued2020-08
dc.descriptionArticle number - 103621
dc.descriptionCorrigendum to “Effect of the source concrete with ASR degradation on the mechanical and physical properties of coarse recycled aggregate” publicado em novembro de 2020, incorporado no documento original: Citação - M. Barreto Santos, J. de Brito, A. Santos Silva, A. Hawreen, Corrigendum to “Effect of the source concrete with ASR degradation on the mechanical and physical properties of coarse recycled aggregate” [Cement Concr. Compos. (2020) 103621], Cement and Concrete Composites, Volume 114, 2020, 103778, ISSN 0958-9465, https://doi.org/10.1016/j.cemconcomp.2020.103778. https://www.scopus.com/pages/publications/85090568650?inward
dc.description.abstractKnowing the aggregates' properties is fundamental for the correct design and performance prediction of concrete. The incorporation of coarse recycled aggregate (CRA) in concrete requires a deep understanding of CRA's capacity and limitations. CRA properties are mainly conditioned by the type of natural aggregates (NA), the interstitial transition zone (ITZ), and the adhered mortar's quality. All these conditions are restricted by the chemical, physical, and mechanical properties of the source concrete (SC). The potential alkali reactivity of CRA raises the alkali-silica reaction (ASR) issue when CRA incorporation in concrete is an option. The heterogeneity of CRA affects the reactive silica and alkali content present in NA and in the adhered mortar, respectively, depending on the characteristics of the SC. This makes it difficult to analyse the influence of CRA's heterogeneity when ASR-effected SC is used. This work intends to investigate modifications of CRA properties due to ASR level in the SC. For this purpose, several tests including ASR evaluation, particle size distribution, density and bulk density, water absorption, shape index, flatness index and fragmentation resistance were performed on NA (fine and coarse) and CRA under natural and accelerated aging conditions. The results shown that the use of ASR-effected CRA does not change its mechanical and physical properties. In fact, these properties are more dependent on the corresponding characteristics of NA, ITZ, and the adhered mortar than on the ASR level in the SC.eng
dc.description.sponsorshipThe authors gratefully acknowledge the support of CERIS (Civil Engineering Research and Innovation for Sustainability) , FCT (Foundation for Science and Technology) , and LNEC (National Laboratory for Civil Engineering) for their support through the project RE-IMPROVE (Expansive reactions in concrete - Prevention and mitigation of their effects).
dc.identifier.citationM. Barreto Santos, J. de Brito, A. Santos Silva, A. Hawreen, Effect of the source concrete with ASR degradation on the mechanical and physical properties of coarse recycled aggregate, Cement and Concrete Composites, Volume 111, 2020, 103621, ISSN 0958-9465, https://doi.org/10.1016/j.cemconcomp.2020.103621.
dc.identifier.doi10.1016/j.cemconcomp.2020.103621
dc.identifier.issn0958-9465
dc.identifier.urihttp://hdl.handle.net/10400.8/13629
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relation.hasversionhttps://www.scopus.com/pages/publications/85083496947?inward
dc.relation.ispartofCement and Concrete Composites
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectASR
dc.subjectCRA
dc.subjectCRA properties
dc.subjectSource concrete degradation
dc.titleEffect of the source concrete with ASR degradation on the mechanical and physical properties of coarse recycled aggregateeng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage10
oaire.citation.startPage1
oaire.citation.titleCement and Concrete Composites
oaire.citation.volume111
oaire.versionhttp://purl.org/coar/version/c_e19f295774971610
person.familyNameBarreto Santos
person.givenNameMiguel
person.identifier.orcid0000-0001-9296-6643
relation.isAuthorOfPublicationa172351f-a295-4886-8465-4fbc1f932db1
relation.isAuthorOfPublication.latestForDiscoverya172351f-a295-4886-8465-4fbc1f932db1

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Effect of the source concrete with ASR degradation on the mechanical and physical properties of coarse recycled aggregate.pdf
Size:
4.69 MB
Format:
Adobe Portable Document Format
Description:
Knowing the aggregates' properties is fundamental for the correct design and performance prediction of concrete. The incorporation of coarse recycled aggregate (CRA) in concrete requires a deep understanding of CRA's capacity and limitations. CRA properties are mainly conditioned by the type of natural aggregates (NA), the interstitial transition zone (ITZ), and the adhered mortar's quality. All these conditions are restricted by the chemical, physical, and mechanical properties of the source concrete (SC). The potential alkali reactivity of CRA raises the alkali-silica reaction (ASR) issue when CRA incorporation in concrete is an option. The heterogeneity of CRA affects the reactive silica and alkali content present in NA and in the adhered mortar, respectively, depending on the characteristics of the SC. This makes it difficult to analyse the influence of CRA's heterogeneity when ASR-effected SC is used. This work intends to investigate modifications of CRA properties due to ASR level in the SC. For this purpose, several tests including ASR evaluation, particle size distribution, density and bulk density, water absorption, shape index, flatness index and fragmentation resistance were performed on NA (fine and coarse) and CRA under natural and accelerated aging conditions. The results shown that the use of ASR-effected CRA does not change its mechanical and physical properties. In fact, these properties are more dependent on the corresponding characteristics of NA, ITZ, and the adhered mortar than on the ASR level in the SC.
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.32 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

ESTG - Artigos em revistas internacionais