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performance of recycled concrete aggregates a new study

performance of recycled concrete aggregates a new study

Performance of Recycled Concrete Aggregates: A New Study

15/04/2021  Performance of Recycled Concrete Aggregates: A New Study. Posted on April 15, 2021. It is a basic axiom of environmental stewardship. When possible, use old stuff to make new stuff. The same is true with concrete aggregates. Mixes are more sustainable when recycled concrete aggregate (RCA) replaces natural aggregates

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Performance of recycled aggregate concrete based on a new ...

01/10/2015  An experimental study was carried out on mechanical and durability properties of produced Recycled Aggregate Concrete (RAC) compared to those of the Natural Aggregate Concrete (NAC). The aim was to understand the importance of RA substitution, w/c ratio and type of cement to the properties of RAC. In this regard, two series of reference concrete with strength classes of C25/30

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A study on heat transfer performance of recycled aggregate ...

01/11/2020  This paper proposes a new thermal resistance testing method to study the effects that the volume fraction of recycled coarse aggregates and glazed hollow beads have on the heat transfer performance of recycled aggregate thermal insulation concrete. Also, a thermal resistance prediction model suitable for recycled aggregate thermal insulation concrete through experimental and

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Performance of Recycled Aggregate Concrete

Performance of Recycled Aggregate Concrete By: Ayed Ahmad Zuhud supervisors: Dr. Mohammed Arafa Dr. Jihad Hamad Thesis Submitted in Partial Fulfillment of the Requirements for the Degree of Master of Design and Rehabilitation of Structures November 2008 . ii DEDICATION To the spirits of my parents, my brother the martyr Hassan and my brother Ali those was there for guidance and gave me

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Performance evaluation of recycled aggregate concrete ...

30/12/2019  The three RCA are: (a) aggregates recycled from laboratory that had already been tested for one year (denoted as RCA), (b) aggregates obtained from concrete structures built 15 years earlier (15RCA), (c) aggregates from buildings that have reached the end of their service life of 50 years (50RCA). For consistency, the gradations of the recycled coarse aggregates were the same as that

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A STUDY ON RECYCLED CONCRETE AGGREGATES

crushed at ages 1, 3 and 28 days to serve as a source of aggregate for new concrete, ... limitations of recycled aggregate concrete. This study showed that recycled aggregates had higher water absorption value than natural aggregates but less density and strength. Choudary.et.al. (2006), the author investigated workability and strength properties of International Journal of Pure and Applied ...

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Performance of recycled aggregate concrete based on a new ...

01/10/2015  An experimental study was carried out on mechanical and durability properties of produced Recycled Aggregate Concrete (RAC) compared to those of the Natural Aggregate Concrete (NAC). The aim was to understand the importance of RA substitution, w/c ratio and type of cement to the properties of RAC. In this regard, two series of reference concrete with strength classes of C25/30

get price

A study on heat transfer performance of recycled aggregate ...

01/11/2020  This paper proposes a new thermal resistance testing method to study the effects that the volume fraction of recycled coarse aggregates and glazed hollow beads have on the heat transfer performance of recycled aggregate thermal insulation concrete. Also, a thermal resistance prediction model suitable for recycled aggregate thermal insulation concrete through experimental and

get price

Performance of Recycled Aggregate Concrete

Performance of Recycled Aggregate Concrete By: Ayed Ahmad Zuhud supervisors: Dr. Mohammed Arafa Dr. Jihad Hamad Thesis Submitted in Partial Fulfillment of the Requirements for the Degree of Master of Design and Rehabilitation of Structures November 2008 . ii DEDICATION To the spirits of my parents, my brother the martyr Hassan and my brother Ali those was there for guidance and gave me

get price

Study on Performance of Recycled Aggregate Concrete ...

The properties of recycled coarse aggregate and the slump, the physical and mechanical properties and durability of recycled aggregate concrete were studied through tests. The results indicate that the slump, compressive strength and durability of concrete with recycled aggregate are lower than that of concrete with natural aggregate when recycled coarse aggregate fully absorbs water.

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EXPERIMENTAL STUDY ON PERFORMANCE OF RECYCLED AGGREGATE ...

Haidar Ali, Experimental Study on Performance of Recycled Aggregate Concrete: Effect of Reactive Mineral Admixtures, International Journal of Civil Engineering and Technology (IJCIET) 10(1), 2019 ...

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The Utilization of Recycled Aggregate in High Performance ...

01/07/2020  Using Recycled Aggregate (RA) for new high performance concrete (HPC) could be an environmentally friendly solution , , . HPC is a cementitious composite material consisting of Portland cement, water, a high-range water reducer, fine aggregate, and other admixtures . Attempts are already made to develop modern concretes like HPC and self-consolidating concrete (SCC) using mineral

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(PDF) Use of recycled concrete aggregates in structural ...

A detailed study is presented in this paper of 18 mixtures (SF3 slump-flow class) containing 100 % coarse recycled concrete aggregate, two types of cement (CEM I or CEM III/A, the latter with 45 % ...

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An overview of study on recycled aggregate concrete in ...

01/06/2012  Using recycled concrete aggregates in New Zealand ready-mix concrete production. J Mater Civil Eng, 22 (5) (2010), pp. 443-450. View Record in Scopus Google Scholar J.Z. Xiao, J.B. Li, Ch. Zhang. On statistical characteristics of compressive strength of recycled aggregate concrete. Struct Concr, 6 (4) (2005), pp. 149-153. CrossRef View Record in Scopus Google Scholar. J.Z. Xiao, B. Lei,

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Properties of recycled concrete aggregate and their ...

01/06/2018  1. Introduction. Concrete is known as one of the most highly consumed construction materials. The primary ingredients of a concrete mixture are cement, aggregates (coarse and fine), water and admixtures (Mindess et al., 2003; National Ready Mixed Concrete Association (NRMCA), 2012).Among the aforementioned components, aggregate takes up about 70% to 80% of concrete’s

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(PDF) Use of recycled concrete aggregate in high-strength ...

The results of a test programme to study the use of recycled concrete aggregate (RCA) in high-strength, 50 N/mm2 or greater, concrete are described. The effects of coarse RCA content on the ...

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Study on the Strength Performance of Recycled Aggregate ...

In order to study the mechanical properties of recycled aggregate concrete (RAC) at different ages, 264 standard cubes were designed to test its direct shear strength and cube compressive strength while considering the parameters of age and recycled aggregate replacement ratio. The failure pattern and load-displacement curve of specimens at direct shearing were obtained; the direct shear ...

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Study on Performance of Recycled Aggregate Concrete ...

The properties of recycled coarse aggregate and the slump, the physical and mechanical properties and durability of recycled aggregate concrete were studied through tests. The results indicate that the slump, compressive strength and durability of concrete with recycled aggregate are lower than that of concrete with natural aggregate when recycled coarse aggregate fully absorbs water.

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EXPERIMENTAL STUDY ON PERFORMANCE OF RECYCLED AGGREGATE ...

Haidar Ali, Experimental Study on Performance of Recycled Aggregate Concrete: Effect of Reactive Mineral Admixtures, International Journal of Civil Engineering and Technology (IJCIET) 10(1), 2019 ...

get price

The Utilization of Recycled Aggregate in High Performance ...

01/07/2020  Using Recycled Aggregate (RA) for new high performance concrete (HPC) could be an environmentally friendly solution , , . HPC is a cementitious composite material consisting of Portland cement, water, a high-range water reducer, fine aggregate, and other admixtures . Attempts are already made to develop modern concretes like HPC and self-consolidating concrete (SCC) using mineral

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Experimental Study on Engineering Performance of Recycled ...

Recycled Concrete aggregates (RCA) are comprised of crushed, graded inorganic particles processed from the materials are used in the constructions industry. The aim of this project is to determine the strength characteristics of recycled aggregates

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Performance Study of Eco-Concrete Based on Waste ...

The behaviour of the new product of concrete incorporating a percentage going of 0 until 100 % of collected aggregates was the object of this research project. In addition, the NDT test methods were used to assess the compressive strength of the due concrete. A correlation study to predict the compressive strength in this particular case was considered. 2. Materials and Methods . The studied ...

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STUDY ON THE SEISMIC PERFORMANCE OF RECYCLED AGGREGATE ...

STUDY ON THE SEISMIC PERFORMANCE OF RECYCLED AGGREGATE CONCRETE-FILLED LIGHTWEIGHT STEEL TUBE FRAME WITH DIFFERENT ASSEMBLY JOINTS Liu Wenchao 1,2, Cao Wanlin 2*, Qiao Qiyun 2, Ren Lele 2, Wang Ruwei 2 1. Office of Postdoctoral Research, Beijing University of Technology, Beijing 100124, China; [email protected] 2. Key Laboratory of Urban

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An overview of study on recycled aggregate concrete in ...

01/06/2012  Using recycled concrete aggregates in New Zealand ready-mix concrete production. J Mater Civil Eng, 22 (5) (2010), pp. 443-450. View Record in Scopus Google Scholar J.Z. Xiao, J.B. Li, Ch. Zhang. On statistical characteristics of compressive strength of recycled aggregate concrete. Struct Concr, 6 (4) (2005), pp. 149-153. CrossRef View Record in Scopus Google Scholar. J.Z. Xiao, B. Lei,

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Experimental Study on High Strength Concrete with Recycled ...

The organizations that do use recycled concrete aggregate (RCA) in new concrete report that concrete with RCA performs equal to concrete with natural aggregates. Most companies mention the use of material directly in the project that is being reconstructed. Recycling of concrete is a usually a bare process. It includes removing, and crushing already present concrete into a material with a ...

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(PDF) IRJET- A STUDY ON USE OF RECYCLED CONCRETE AGGREGATE ...

The aim of this study is to evaluate the performance of recycled concrete aggregate in concrete mix in cement concrete for workability and strength of concrete using OPC (43 grade). Waste arising from construction and demolition (C D)

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