Investigation the effect of Different Types of Recycled Concrete Aggregates on the Engineering Properties of Concrete

In recent decades, concurrent with expansion of cities, the demand for new buildings and structures has increased. On the other hand, aggregates constitute the biggest portion of concrete. As such, providing natural aggregates for producing concrete has become a challenge due to shortage of resource...

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Autores principales:	milad aghili lotf, Amir Mohammad Ramezanianpour, masoud palasi
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2020
Materias:	recycled concrete aggregate (rca) compressive strength freeze and thaw soundness deicer-salt scaling parent concrete Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/f4ac8dad1d544367b9403d884b011638
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spelling	oai:doaj.org-article:f4ac8dad1d544367b9403d884b0116382021-11-08T15:53:21ZInvestigation the effect of Different Types of Recycled Concrete Aggregates on the Engineering Properties of Concrete2476-39772538-261610.22065/jsce.2018.127001.1519https://doaj.org/article/f4ac8dad1d544367b9403d884b0116382020-09-01T00:00:00Zhttps://www.jsce.ir/article_73684_145d0f8e9117e2dab89550086221d04d.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616In recent decades, concurrent with expansion of cities, the demand for new buildings and structures has increased. On the other hand, aggregates constitute the biggest portion of concrete. As such, providing natural aggregates for producing concrete has become a challenge due to shortage of resources. Also, treatment of construction waste materials resulted from demolition of old structures has been another concern. One way to handle these problems is reusing concrete waste as a new material in new construction. Nowadays, recycled concrete aggregate (RCA) is used in concrete as a partial or complete replacement for natural aggregate (NA). Performance of recycled aggregate concrete (RAC) is influenced by the characteristics of the parent concrete from which RCA is obtained. In this research, the mechanical properties and the durability of three types of RCAs from different sources were evaluated. For this purpose, the aggregates' Los Angeles abrasion value and freeze/thaw soundness value were determined. Moreover, eight concrete mixes incorporating different amounts of the RCAs as coarse aggregate were cast and their water absorption coefficient, compressive strength and deicer-salt scaling resistance were assessed. The results showed that the mechanical properties of RCAs had a direct relationship with the mechanical properties and durability of RACs. Also, the type of RCAs had no significant impact on the performance of RACs. However, increasing the replacement amount of RCA decreased the strength and deicer-salt scaling resistance of RACs.milad aghili lotfAmir Mohammad Ramezanianpourmasoud palasiIranian Society of Structrual Engineering (ISSE)articlerecycled concrete aggregate (rca)compressive strengthfreeze and thaw soundnessdeicer-salt scalingparent concreteBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 7, Iss 3, Pp 179-192 (2020)
institution	DOAJ
collection	DOAJ
language	FA
topic	recycled concrete aggregate (rca) compressive strength freeze and thaw soundness deicer-salt scaling parent concrete Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	recycled concrete aggregate (rca) compressive strength freeze and thaw soundness deicer-salt scaling parent concrete Bridge engineering TG1-470 Building construction TH1-9745 milad aghili lotf Amir Mohammad Ramezanianpour masoud palasi Investigation the effect of Different Types of Recycled Concrete Aggregates on the Engineering Properties of Concrete
description	In recent decades, concurrent with expansion of cities, the demand for new buildings and structures has increased. On the other hand, aggregates constitute the biggest portion of concrete. As such, providing natural aggregates for producing concrete has become a challenge due to shortage of resources. Also, treatment of construction waste materials resulted from demolition of old structures has been another concern. One way to handle these problems is reusing concrete waste as a new material in new construction. Nowadays, recycled concrete aggregate (RCA) is used in concrete as a partial or complete replacement for natural aggregate (NA). Performance of recycled aggregate concrete (RAC) is influenced by the characteristics of the parent concrete from which RCA is obtained. In this research, the mechanical properties and the durability of three types of RCAs from different sources were evaluated. For this purpose, the aggregates' Los Angeles abrasion value and freeze/thaw soundness value were determined. Moreover, eight concrete mixes incorporating different amounts of the RCAs as coarse aggregate were cast and their water absorption coefficient, compressive strength and deicer-salt scaling resistance were assessed. The results showed that the mechanical properties of RCAs had a direct relationship with the mechanical properties and durability of RACs. Also, the type of RCAs had no significant impact on the performance of RACs. However, increasing the replacement amount of RCA decreased the strength and deicer-salt scaling resistance of RACs.
format	article
author	milad aghili lotf Amir Mohammad Ramezanianpour masoud palasi
author_facet	milad aghili lotf Amir Mohammad Ramezanianpour masoud palasi
author_sort	milad aghili lotf
title	Investigation the effect of Different Types of Recycled Concrete Aggregates on the Engineering Properties of Concrete
title_short	Investigation the effect of Different Types of Recycled Concrete Aggregates on the Engineering Properties of Concrete
title_full	Investigation the effect of Different Types of Recycled Concrete Aggregates on the Engineering Properties of Concrete
title_fullStr	Investigation the effect of Different Types of Recycled Concrete Aggregates on the Engineering Properties of Concrete
title_full_unstemmed	Investigation the effect of Different Types of Recycled Concrete Aggregates on the Engineering Properties of Concrete
title_sort	investigation the effect of different types of recycled concrete aggregates on the engineering properties of concrete
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2020
url	https://doaj.org/article/f4ac8dad1d544367b9403d884b011638
work_keys_str_mv	AT miladaghililotf investigationtheeffectofdifferenttypesofrecycledconcreteaggregatesontheengineeringpropertiesofconcrete AT amirmohammadramezanianpour investigationtheeffectofdifferenttypesofrecycledconcreteaggregatesontheengineeringpropertiesofconcrete AT masoudpalasi investigationtheeffectofdifferenttypesofrecycledconcreteaggregatesontheengineeringpropertiesofconcrete
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Investigation the effect of Different Types of Recycled Concrete Aggregates on the Engineering Properties of Concrete

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