Prediction of compressive strength of general-use concrete mixes with recycled concrete aggregate

This paper presents the mechanical behaviour of concrete mixes made with recycled aggregate by replacing the natural aggregate with crushed concrete from pavement demolition. The purpose of this study was to determine the feasibility of using recycled aggregate from pavement demolition to make new c...

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Autores:
Sabău, Marian
Remolina Duran, Jesús
Tipo de recurso:
Article of journal
Fecha de publicación:
2021
Institución:
Corporación Universidad de la Costa
Repositorio:
REDICUC - Repositorio CUC
Idioma:
eng
OAI Identifier:
oai:repositorio.cuc.edu.co:11323/8493
Acceso en línea:
https://hdl.handle.net/11323/8493
https://doi.org/10.1007/s42947-021-00012-6
https://repositorio.cuc.edu.co/
Palabra clave:
Pavement demolition
Recycled concrete aggregate
Compressive strength
Regression analysis
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openAccess
License
Attribution-NonCommercial-NoDerivatives 4.0 International
id RCUC2_4466fb5404fcfe2707461456f7a37dd4
oai_identifier_str oai:repositorio.cuc.edu.co:11323/8493
network_acronym_str RCUC2
network_name_str REDICUC - Repositorio CUC
repository_id_str
dc.title.spa.fl_str_mv Prediction of compressive strength of general-use concrete mixes with recycled concrete aggregate
title Prediction of compressive strength of general-use concrete mixes with recycled concrete aggregate
spellingShingle Prediction of compressive strength of general-use concrete mixes with recycled concrete aggregate
Pavement demolition
Recycled concrete aggregate
Compressive strength
Regression analysis
title_short Prediction of compressive strength of general-use concrete mixes with recycled concrete aggregate
title_full Prediction of compressive strength of general-use concrete mixes with recycled concrete aggregate
title_fullStr Prediction of compressive strength of general-use concrete mixes with recycled concrete aggregate
title_full_unstemmed Prediction of compressive strength of general-use concrete mixes with recycled concrete aggregate
title_sort Prediction of compressive strength of general-use concrete mixes with recycled concrete aggregate
dc.creator.fl_str_mv Sabău, Marian
Remolina Duran, Jesús
dc.contributor.author.spa.fl_str_mv Sabău, Marian
Remolina Duran, Jesús
dc.subject.spa.fl_str_mv Pavement demolition
Recycled concrete aggregate
Compressive strength
Regression analysis
topic Pavement demolition
Recycled concrete aggregate
Compressive strength
Regression analysis
description This paper presents the mechanical behaviour of concrete mixes made with recycled aggregate by replacing the natural aggregate with crushed concrete from pavement demolition. The purpose of this study was to determine the feasibility of using recycled aggregate from pavement demolition to make new concrete for pavement applications. Considering a control mix without recycled aggregate (RCA0) designed for a compressive strength of 34 MPa, two types of concrete mixes with 50% (RCA50) and 100% (RCA100) replacement percentage of natural coarse aggregate by recycled aggregate were made. The resulting concrete specimens were tested at three different curing ages, 7, 14, and 28 days. The results of this study showed that the compressive and flexural strengths decreased for all two mixes as the recycled aggregate content increased, while the density was slightly affected. A new model based on multiple linear regression analysis of the data from this study and other 14 studies from the literature was developed. The model can be used to predict the compressive strength of general-use concrete mixes with recycled aggregate (20–40 MPa) considering both the recycled aggregate content and the curing age of concrete. A good correlation was found between the compressive strength and the two parameters investigated. Given the predictions of this model, it is recommended not to use more than 30% recycled concrete aggregate in the production of new concrete in order not to affect its strength.
publishDate 2021
dc.date.accessioned.none.fl_str_mv 2021-07-27T13:40:33Z
dc.date.available.none.fl_str_mv 2021-07-27T13:40:33Z
dc.date.issued.none.fl_str_mv 2021
dc.type.spa.fl_str_mv Artículo de revista
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dc.type.coar.spa.fl_str_mv http://purl.org/coar/resource_type/c_6501
dc.type.content.spa.fl_str_mv Text
dc.type.driver.spa.fl_str_mv info:eu-repo/semantics/article
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dc.identifier.uri.spa.fl_str_mv https://hdl.handle.net/11323/8493
dc.identifier.doi.spa.fl_str_mv https://doi.org/10.1007/s42947-021-00012-6
dc.identifier.instname.spa.fl_str_mv Corporación Universidad de la Costa
dc.identifier.reponame.spa.fl_str_mv REDICUC - Repositorio CUC
dc.identifier.repourl.spa.fl_str_mv https://repositorio.cuc.edu.co/
url https://hdl.handle.net/11323/8493
https://doi.org/10.1007/s42947-021-00012-6
https://repositorio.cuc.edu.co/
identifier_str_mv Corporación Universidad de la Costa
REDICUC - Repositorio CUC
dc.language.iso.none.fl_str_mv eng
language eng
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spelling Sabău, MarianRemolina Duran, Jesús2021-07-27T13:40:33Z2021-07-27T13:40:33Z2021https://hdl.handle.net/11323/8493https://doi.org/10.1007/s42947-021-00012-6Corporación Universidad de la CostaREDICUC - Repositorio CUChttps://repositorio.cuc.edu.co/This paper presents the mechanical behaviour of concrete mixes made with recycled aggregate by replacing the natural aggregate with crushed concrete from pavement demolition. The purpose of this study was to determine the feasibility of using recycled aggregate from pavement demolition to make new concrete for pavement applications. Considering a control mix without recycled aggregate (RCA0) designed for a compressive strength of 34 MPa, two types of concrete mixes with 50% (RCA50) and 100% (RCA100) replacement percentage of natural coarse aggregate by recycled aggregate were made. The resulting concrete specimens were tested at three different curing ages, 7, 14, and 28 days. The results of this study showed that the compressive and flexural strengths decreased for all two mixes as the recycled aggregate content increased, while the density was slightly affected. A new model based on multiple linear regression analysis of the data from this study and other 14 studies from the literature was developed. The model can be used to predict the compressive strength of general-use concrete mixes with recycled aggregate (20–40 MPa) considering both the recycled aggregate content and the curing age of concrete. A good correlation was found between the compressive strength and the two parameters investigated. Given the predictions of this model, it is recommended not to use more than 30% recycled concrete aggregate in the production of new concrete in order not to affect its strength.Sabău, MarianRemolina Duran, Jesúsapplication/pdfengAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccesshttp://purl.org/coar/access_right/c_abf2International Journal of Pavement Research and Technologyhttps://link.springer.com/article/10.1007/s42947-021-00012-6Pavement demolitionRecycled concrete aggregateCompressive strengthRegression analysisPrediction of compressive strength of general-use concrete mixes with recycled concrete aggregateArtículo de revistahttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1Textinfo:eu-repo/semantics/articlehttp://purl.org/redcol/resource_type/ARTinfo:eu-repo/semantics/acceptedVersionUNEP, Common Carbon Metric: Protocol for Measuring Energy Use and Reporting Greenhouse Gas Emissions from Building Operations, 2010. https://europa.eu/capacity4dev/unep/document/common-carbon-metric-buildings. 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