critical review of recycled aggregate concrete properties

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Critical Review of Recycled Aggregate Concrete Properties ...

A literature review of the latest advancements in recycled aggregate concretes with regards to identifying properties, improving performance, and numerical modeling is presented in this paper. Although the properties of recycled aggregate concrete ...

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Critical Review of Recycled Aggregate Concrete Properties ...

Critical Review of Recycled Aggregate Concrete Properties, Improvements, and Numerical Models ... In addition, some methods have been proposed to improve the properties of recycled aggregate concrete, with the use of geopolymer binders in place of portland cement showing the most potential. In addition to further research regarding the ...

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A critical review and assessment for usage of recycled ...

2017-1-30  Concrete is a composite material made up of cement, sand, course aggregate and water, and is used for construction. Cement alone has a world production of about 4.3 billion tonnes in 2014 .It has been estimated that concrete uses about 20 billion tonnes of raw materials every year .Oikonomou predicted that the demand of aggregates will double over the course of next two to three decades if ...

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Methods to improve microstructural properties of recycled ...

Request PDF Methods to improve microstructural properties of recycled concrete aggregate: A critical review Recycled concrete aggregate is a demolition concrete waste, which could be an ...

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Critical Analysis of Recycled Aggregate and Concrete with ...

2021-11-23  The properties of the recycled aggregate and of the new concrete made from it, with nearly 100% of aggregate replacement, were tested.Significant differences were

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(PDF) Concrete with fine recycled aggregates: A review

In this paper, 371 cube specimens of recycled aggregate concrete with 0,30%, 50% and 100% recycled coarse aggregate replacement percentages were fabricated and tested

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Use of fine recycled concrete aggregates in concrete: A ...

2021-6-1  The recycled concrete fines may contain calcium hydroxide. When the recycled concrete fines are in contact with water, the alkali content of the water may increase because of the solubility of calcium hydroxide and that newly formed by the hydration of unhydrated cement (if

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Utilising CO2 technologies for recycled aggregate concrete ...

This paper investigates the use of carbon-conditioned recycled aggregate (RACO2) in concrete production. Experimental work is conducted for RACO2 with varying chamber pressure (0

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Use of Recycled Plastics in Concrete: A Critical Review ...

2021-11-25  For the cement content of 540kg/m 3 , the creep coefficient ranged between 2.12 and 3.04. A maximum drying shrinkage value of 1000 microstrain was observed

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Recent studies on mechanical properties of recycled ...

2012-3-20  Numerous experimental and theoretical studies on recycled aggregate concrete have been carried out in China in the past 10 years. This paper provides a comprehensive review of the related findings of research on the mechanical properties of RAC in China. The influences of the RCA on the strength and deformation characteristics of concrete, the statistical characteristics for the strength of ...

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(PDF) MECHANICAL PROPERTIES OF RECYCLED

2019-12-27  Properties of aggregate and comparison of recycled aggregate concrete against natural aggregate concrete is performed according to requirements as such

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(PDF) Concrete with fine recycled aggregates: A review

In this paper, 371 cube specimens of recycled aggregate concrete with 0,30%, 50% and 100% recycled coarse aggregate replacement percentages were fabricated and tested under laboratory conditions.

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Methods to improve microstructural properties of recycled ...

Request PDF Methods to improve microstructural properties of recycled concrete aggregate: A critical review Recycled concrete aggregate is a demolition concrete waste, which could be an ...

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Recent studies on mechanical properties of recycled ...

2012-3-20  Numerous experimental and theoretical studies on recycled aggregate concrete have been carried out in China in the past 10 years. This paper provides a comprehensive review of the related findings of research on the mechanical properties of RAC in China. The influences of the RCA on the strength and deformation characteristics of concrete, the statistical characteristics for the strength of ...

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Recycled Concrete Aggregates: A Review International ...

2013-3-29  This paper discusses the properties of RCA, the effects of RCA use on concrete material properties, and the large scale impact of RCA on structural members. The review study yielded the following findings in regards to concrete material properties: (1) replacing NA in concrete with RCA decreases the compressive strength, but yields comparable splitting tensile strength; (2) the modulus

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Modification of recycled aggregate by spraying colloidal ...

2021-11-16  Upshaw M, Cai CJ (2020) Critical review of recycled aggregate concrete properties, improvements, and numerical models. J Mater Civ Eng 32(11):03120005. Google Scholar 5. Zaben A, Maslehuddin M, Al-Amoudi OSB, Al-Dulaijan SU (2021) Influence of mix composition on the properties of recycled aggregate concrete. Struct Concr 22:1–13

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Research on the Mechanical Properties of Recycled ...

In this paper, uniaxial compression tests were carried out for recycled aggregate concrete with water cement ratios of 0.38, 0.49, and 0.66 and replacement ratios of 0%, 25%, 50%, 75%, and 100%, respectively. The influence of the replacement ratio of recycled aggregate and water cement ratio on the strength, elastic modulus, and deformation characteristics of concrete was discussed.

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Influence of field recycled coarse aggregate on properties ...

2010-5-6  This paper investigates the influence of different amounts of recycled coarse aggregates obtained from a demolished RCC culvert 15 years old on the properties of recycled aggregate concrete (RAC). A new term called “coarse aggregate replacement ratio (CRR)” is introduced and is defined as the ratio of weight of recycled coarse aggregate to the total weight of coarse aggregate in a concrete ...

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Mechanical and Durability Properties of Recycled

The use of recycled concrete aggregates as an alternative aggregate material in concrete has been studied over the past two decades. It is now recognized that the recycled aggregate concrete (RAC), where natural aggregates are replaced with recycled concrete aggregates, is a promising technology for conserving natural resources and reducing the environmental impact of concrete.

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Durability Studies on the Recycled Aggregate Concrete in ...

2019-7-28  Since China hosted the Olympic Games in 2008, a mass of construction and demolition (CD) wastes were produced with the rapid urbanization construction. Recycling the CD waste into recycled aggregates (RA) is an effective method for reducing the amount of CD wastes. Many studies on the properties of RA and the durability of recycled aggregate concrete (RAC) were conducted in

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(PDF) Concrete with fine recycled aggregates: A review

In this paper, 371 cube specimens of recycled aggregate concrete with 0,30%, 50% and 100% recycled coarse aggregate replacement percentages were fabricated and tested under laboratory conditions.

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Sustainable Materials: A Review of Recycled Concrete ...

2021-10-28  In this paper, a comprehensive literature review was conducted on the utilization of recycled concrete aggregate (RCA), which is the dominant construction and demolition waste material, in base and subbase layers and its comparison with natural aggregate (NA).

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Recycled Concrete Aggregates: A Review International ...

2013-3-29  This paper discusses the properties of RCA, the effects of RCA use on concrete material properties, and the large scale impact of RCA on structural members. The review study yielded the following findings in regards to concrete material properties: (1) replacing NA in concrete with RCA decreases the compressive strength, but yields comparable splitting tensile strength; (2) the modulus

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(PDF) MECHANICAL PROPERTIES OF RECYCLED

2019-12-27  Properties of aggregate and comparison of recycled aggregate concrete against natural aggregate concrete is performed according to requirements as such

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Mechanical Properties Of Recycled Aggregates Concrete ...

2.7 RECYCLED AGGREGATE CONCRETE: A SUSTAINABLE BUILT ENVIRONMENT. In the present study the influence of recycled coarse aggregate (RCA) obtained from three different sources having different ages of structures are on the properties of

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Evaluation of Strength of Recycled Coarse Aggregate

2016-4-7  Blended Concrete with Flyash and GGBFS: A Critical Review Sagpariya Pratik1 Prof. S. R. Vaniya2 Prof. R. B. Bhatt3 1,2,3Department of Civil Engineering 1,2,3Darshan Institute of Engineering and Technology (Rajkot), Gujarat Technological University Abstract—Here it is literature study of the recycled coarse aggregate in the concrete with the ...

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Strength and Durability Evaluation of Recycled Aggregate ...

2015-5-14  This paper discusses the suitability of producing concrete with 100 % recycled aggregate to meet durability and strength requirements for different applications. Aggregate strength, gradation, absorption, specific gravity, shape and texture are some of the physical and mechanical characteristics that contribute to the strength and durability of concrete.

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Mechanical properties of recycled aggregate concrete ...

Investigating the effects of steel slag powder on the properties of self-compacting concrete with recycled aggregates Pan, Z, Zhou, J, Jiang, X, Xu, Y, Jin, R, Ma, J, Zhuang, Y, Diao, Z, Zhang, S, Si, Q and Chen, W (2019). Investigating the effects of steel slag powder on the properties of self-compacting concrete with recycled aggregates.

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Research on the Mechanical Properties of Recycled ...

In this paper, uniaxial compression tests were carried out for recycled aggregate concrete with water cement ratios of 0.38, 0.49, and 0.66 and replacement ratios of 0%, 25%, 50%, 75%, and 100%, respectively. The influence of the replacement ratio of recycled aggregate and water cement ratio on the strength, elastic modulus, and deformation characteristics of concrete was discussed.

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Influence of field recycled coarse aggregate on properties ...

2010-5-6  This paper investigates the influence of different amounts of recycled coarse aggregates obtained from a demolished RCC culvert 15 years old on the properties of recycled aggregate concrete (RAC). A new term called “coarse aggregate replacement ratio (CRR)” is introduced and is defined as the ratio of weight of recycled coarse aggregate to the total weight of coarse aggregate in a concrete ...

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