Compressive study on recycled concrete: experiment and numerical homogenization modelling

This paper describes a study of recycled concrete under compressive loads. The study was conducted in two main parts. In the first part, experimental tests were carried out on concrete samples with varying levels of substitution (25%, 50%, and 75%) with recycled aggregate in order to measure the mec...

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Main Authors: Fellah Djamel, Barboura Salma, Tilmatine Thileli, Benyahi Karim, Li Jia, Bouafia Youcef
Format: Article
Language:English
Published: Gruppo Italiano Frattura 2024-01-01
Series:Frattura ed Integrità Strutturale
Subjects:
Online Access:https://www.fracturae.com/index.php/fis/article/view/4480/3902
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author Fellah Djamel
Barboura Salma
Tilmatine Thileli
Benyahi Karim
Li Jia
Bouafia Youcef
author_facet Fellah Djamel
Barboura Salma
Tilmatine Thileli
Benyahi Karim
Li Jia
Bouafia Youcef
author_sort Fellah Djamel
collection DOAJ
description This paper describes a study of recycled concrete under compressive loads. The study was conducted in two main parts. In the first part, experimental tests were carried out on concrete samples with varying levels of substitution (25%, 50%, and 75%) with recycled aggregate in order to measure the mechanical properties of the recycled concrete. In the second part of the study, a nonlinear homogenization model was developed on the basis of a classical secant approach to predict the behavior of recycled concrete. In this model, we assume that the behavior of the mortar phase, the concrete, and the recycled aggregates follow Mazars damage law. Comparison with the experimental data shows that the proposed homogenization model is accurate and efficient in predicting the correct nonlinear behavior of the recycled concrete. By better understanding the properties and behavior of recycled concrete, it will be possible to develop more effective methods for incorporating recycled materials into concrete structures
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spelling doaj.art-b77e6a1e10c740299dc0d9fa22c729142024-01-05T10:06:31ZengGruppo Italiano FratturaFrattura ed Integrità Strutturale1971-89932024-01-011867587910.3221/IGF-ESIS.67.0510.3221/IGF-ESIS.67.05Compressive study on recycled concrete: experiment and numerical homogenization modellingFellah DjamelBarboura SalmaTilmatine ThileliBenyahi KarimLi JiaBouafia YoucefThis paper describes a study of recycled concrete under compressive loads. The study was conducted in two main parts. In the first part, experimental tests were carried out on concrete samples with varying levels of substitution (25%, 50%, and 75%) with recycled aggregate in order to measure the mechanical properties of the recycled concrete. In the second part of the study, a nonlinear homogenization model was developed on the basis of a classical secant approach to predict the behavior of recycled concrete. In this model, we assume that the behavior of the mortar phase, the concrete, and the recycled aggregates follow Mazars damage law. Comparison with the experimental data shows that the proposed homogenization model is accurate and efficient in predicting the correct nonlinear behavior of the recycled concrete. By better understanding the properties and behavior of recycled concrete, it will be possible to develop more effective methods for incorporating recycled materials into concrete structureshttps://www.fracturae.com/index.php/fis/article/view/4480/3902recycled concretesecant homogenizationnonlinear modellingdamage parameter
spellingShingle Fellah Djamel
Barboura Salma
Tilmatine Thileli
Benyahi Karim
Li Jia
Bouafia Youcef
Compressive study on recycled concrete: experiment and numerical homogenization modelling
Frattura ed Integrità Strutturale
recycled concrete
secant homogenization
nonlinear modelling
damage parameter
title Compressive study on recycled concrete: experiment and numerical homogenization modelling
title_full Compressive study on recycled concrete: experiment and numerical homogenization modelling
title_fullStr Compressive study on recycled concrete: experiment and numerical homogenization modelling
title_full_unstemmed Compressive study on recycled concrete: experiment and numerical homogenization modelling
title_short Compressive study on recycled concrete: experiment and numerical homogenization modelling
title_sort compressive study on recycled concrete experiment and numerical homogenization modelling
topic recycled concrete
secant homogenization
nonlinear modelling
damage parameter
url https://www.fracturae.com/index.php/fis/article/view/4480/3902
work_keys_str_mv AT fellahdjamel compressivestudyonrecycledconcreteexperimentandnumericalhomogenizationmodelling
AT barbourasalma compressivestudyonrecycledconcreteexperimentandnumericalhomogenizationmodelling
AT tilmatinethileli compressivestudyonrecycledconcreteexperimentandnumericalhomogenizationmodelling
AT benyahikarim compressivestudyonrecycledconcreteexperimentandnumericalhomogenizationmodelling
AT lijia compressivestudyonrecycledconcreteexperimentandnumericalhomogenizationmodelling
AT bouafiayoucef compressivestudyonrecycledconcreteexperimentandnumericalhomogenizationmodelling