Analysis and optimization of mechanical properties of recycled concrete based on aggregate characteristics

The most significant difference between recycled and natural concretes lies in aggregates. The performance of recycled coarse aggregates directly affects the characteristics of recycled concrete. Therefore, an in-depth study of aggregate characteristics is of great significance for improving the qua...

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Autores principales:	Bian Jiangwei, Zhang Wenbing, Shen Zhenzhong, Li Song, Chen Zhanglan
Formato:	article
Lenguaje:	EN
Publicado:	De Gruyter 2021
Materias:	recycled concrete aggregate characteristics response surface analysis numerical simulation mechanical properties Materials of engineering and construction. Mechanics of materials TA401-492
Acceso en línea:	https://doaj.org/article/7c1c6bc080e140aaa2ddbd367e877640
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spelling	oai:doaj.org-article:7c1c6bc080e140aaa2ddbd367e8776402021-12-05T14:11:03ZAnalysis and optimization of mechanical properties of recycled concrete based on aggregate characteristics2191-035910.1515/secm-2021-0050https://doaj.org/article/7c1c6bc080e140aaa2ddbd367e8776402021-09-01T00:00:00Zhttps://doi.org/10.1515/secm-2021-0050https://doaj.org/toc/2191-0359The most significant difference between recycled and natural concretes lies in aggregates. The performance of recycled coarse aggregates directly affects the characteristics of recycled concrete. Therefore, an in-depth study of aggregate characteristics is of great significance for improving the quality of recycled concrete. Based on the coarse aggregate content, maximum aggregate size, and aggregate shape, this study uses experiments, theoretical analysis, and numerical simulation to reveal the impact of aggregate characteristics on the mechanical properties of recycled concrete. In this study, we selected the coarse aggregate content, maximum aggregate size, and the aggregate shape as design variables to establish the regression equations of the peak stress and elastic modulus of recycled concrete using the response surface methodology. The results showed that the peak stress and elastic modulus of recycled concrete reach the best when the coarse aggregate content is 45%, the maximum coarse aggregate size is 16 mm, and the regular round coarse aggregates occupy 75%. Such results provide a theoretical basis for the resource utilization and engineering design of recycled aggregates.Bian JiangweiZhang WenbingShen ZhenzhongLi SongChen ZhanglanDe Gruyterarticlerecycled concreteaggregate characteristicsresponse surface analysisnumerical simulationmechanical propertiesMaterials of engineering and construction. Mechanics of materialsTA401-492ENScience and Engineering of Composite Materials, Vol 28, Iss 1, Pp 516-527 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	recycled concrete aggregate characteristics response surface analysis numerical simulation mechanical properties Materials of engineering and construction. Mechanics of materials TA401-492
spellingShingle	recycled concrete aggregate characteristics response surface analysis numerical simulation mechanical properties Materials of engineering and construction. Mechanics of materials TA401-492 Bian Jiangwei Zhang Wenbing Shen Zhenzhong Li Song Chen Zhanglan Analysis and optimization of mechanical properties of recycled concrete based on aggregate characteristics
description	The most significant difference between recycled and natural concretes lies in aggregates. The performance of recycled coarse aggregates directly affects the characteristics of recycled concrete. Therefore, an in-depth study of aggregate characteristics is of great significance for improving the quality of recycled concrete. Based on the coarse aggregate content, maximum aggregate size, and aggregate shape, this study uses experiments, theoretical analysis, and numerical simulation to reveal the impact of aggregate characteristics on the mechanical properties of recycled concrete. In this study, we selected the coarse aggregate content, maximum aggregate size, and the aggregate shape as design variables to establish the regression equations of the peak stress and elastic modulus of recycled concrete using the response surface methodology. The results showed that the peak stress and elastic modulus of recycled concrete reach the best when the coarse aggregate content is 45%, the maximum coarse aggregate size is 16 mm, and the regular round coarse aggregates occupy 75%. Such results provide a theoretical basis for the resource utilization and engineering design of recycled aggregates.
format	article
author	Bian Jiangwei Zhang Wenbing Shen Zhenzhong Li Song Chen Zhanglan
author_facet	Bian Jiangwei Zhang Wenbing Shen Zhenzhong Li Song Chen Zhanglan
author_sort	Bian Jiangwei
title	Analysis and optimization of mechanical properties of recycled concrete based on aggregate characteristics
title_short	Analysis and optimization of mechanical properties of recycled concrete based on aggregate characteristics
title_full	Analysis and optimization of mechanical properties of recycled concrete based on aggregate characteristics
title_fullStr	Analysis and optimization of mechanical properties of recycled concrete based on aggregate characteristics
title_full_unstemmed	Analysis and optimization of mechanical properties of recycled concrete based on aggregate characteristics
title_sort	analysis and optimization of mechanical properties of recycled concrete based on aggregate characteristics
publisher	De Gruyter
publishDate	2021
url	https://doaj.org/article/7c1c6bc080e140aaa2ddbd367e877640
work_keys_str_mv	AT bianjiangwei analysisandoptimizationofmechanicalpropertiesofrecycledconcretebasedonaggregatecharacteristics AT zhangwenbing analysisandoptimizationofmechanicalpropertiesofrecycledconcretebasedonaggregatecharacteristics AT shenzhenzhong analysisandoptimizationofmechanicalpropertiesofrecycledconcretebasedonaggregatecharacteristics AT lisong analysisandoptimizationofmechanicalpropertiesofrecycledconcretebasedonaggregatecharacteristics AT chenzhanglan analysisandoptimizationofmechanicalpropertiesofrecycledconcretebasedonaggregatecharacteristics
_version_	1718371430862684160

Analysis and optimization of mechanical properties of recycled concrete based on aggregate characteristics

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