effect of recycled coarse aggregate type on concrete

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Effect of Recycled Coarse Aggregate Type on Concrete ...

May 13, 2014  The types of aggregate used represent the three main constituents within recycled aggregates: unbound stone, crushed concrete, and crushed brick. Tests for mechanical properties of different types of recycled aggregate included crushing value and abrasion resistance.

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Effect of Recycled Coarse Aggregate Type on Concrete

Effect of Recycled Coarse Aggregate Type on Concrete. An important aspect of sustainable construction is the recycling or reuse of the construction and demolition (CD) waste to

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Effect of recycled coarse aggregate on concrete ...

Jun 22, 2011  10%  The effect of recycled coarse aggregate on concrete compressive strength was investigated based on the concrete skeleton theory. For this purpose, 30 mix proportions of concrete with target cube compressive strength ranging from 20 to 60 MPa were cast with normal coarse aggregate and recycled coarse aggregate from different strength parent concretes. Results of 28-d test

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Effect of Recycled Coarse Aggregate on Concrete Properties ...

6. The percentage from Recycled coarse Aggregate that can be used in concrete is maximum 35% replacement of Recycled coarse Aggregate. References: Anonymous. 2008. Use of Recycled Aggregate in Construction. Cement Concrete and Aggregate Australia. Akbari, Y.V., Arora, N.K., Vakil, M.D. 2011. Effect on Recycled Aggregate on Concrete Properties.

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Effect of recycled coarse aggregate on the new interfacial ...

Nov 30, 2018  Due to its high water absorption, recycled aggregate (RA) disrupts the microstructure of concrete, mainly within the interfacial transition zone (ITZ). The objective of the present study is to examine the effect of Recycled Coarse Aggregate (RCA) on the microstructure of the ITZ of three different strength classes of concrete (C25, C35 and C45 ...

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The effect of recycled concrete aggregate properties on ...

Oct 01, 2011  The three coarse aggregates were evaluated qualitatively in terms of their shape and surface texture. The maximum particle size of each aggregate type was 19 mm and the gradation adhered to the Ontario Ministry of Transportation guidelines for concrete stone .Both the particle shape and surface textures were characterized according to British Standard BS 812 .

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Effect of Recycled Coarse Aggregate Type on Concrete

Effect of Recycled Coarse Aggregate Type on Concrete. An important aspect of sustainable construction is the recycling or reuse of the construction and demolition (CD) waste to

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Effect of Recycled Coarse Aggregate on Concrete Properties ...

6. The percentage from Recycled coarse Aggregate that can be used in concrete is maximum 35% replacement of Recycled coarse Aggregate. References: Anonymous. 2008. Use of Recycled Aggregate in Construction. Cement Concrete and Aggregate Australia. Akbari, Y.V., Arora, N.K., Vakil, M.D. 2011. Effect on Recycled Aggregate on Concrete Properties.

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Effect of recycled coarse aggregate on damage of recycled ...

Apr 03, 2011  This study evaluates the possibility of measuring the damage of the recycled concrete. In this way, two conventional concretes with a w/c ratio of 0.55 and 0.65 were designed. Based on them, six recycled concretes with different percentages of replacement of natural coarse aggregates with recycled coarse aggregate (20, 50 and 100%) were obtained. To take into account the high absorption ...

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Effect of Recycled Concrete Aggregate on Rutting and ...

Oct 10, 2019  This study aims to evaluate the influence of the addition of coarse recycled concrete aggregate (CRCA) on the rutting and stiffness of Ontario Superpave mixtures. Mix designs of asphalt mixtures were performed for two types of CRCA at various proportions.

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Effect of Recycled Coarse Aggregate and Bagasse Ash on

May 16, 2021  recycled aggregate as a construction material over the last few decades. In two-stage concrete (TSC), coarse aggregates are placed in formwork, and then grout is injected with high pressure to fill up the voids between the coarse aggregates. In this experimental research, TSC was made with 100% recycled coarse aggregate (RCA).

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Effect of carbonated recycled coarse aggregate on the ...

Oct 01, 2017  A type of ASTM Type I Portland cement was used. The fine aggregate was river sand. The RCA was obtained by crushing a batch of concrete of which the mixture proportion is given in Table 1.The 28 days compressive strength of the original concrete was designed with 45 MPa.After on-site curing for 6 months, the original concrete was crushed in a CDW recycling plant.

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Effects of coral, recycled and natural coarse aggregates ...

The effects of different types of coarse aggregates on mechanical properties of concrete were compared in this paper. Three different coarse aggregates were considered: natural coarse aggregate (NCA), recycled coarse aggregate (RCA) and coral coarse aggregate (CCA).

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EFFECTS OF AGGREGATE TYPE, SIZE, AND CONTENT ON

There is strong evidence that aggregate type is a factor in the strength of concrete. Ezeldin and Aitcin (1991) compared concretes with the same mix proportions containing four different coarse aggregate types. They concluded that, in high-strength concretes, higher strength coarse aggregates typically yield

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(PDF) The Design and Development of Recycled Concretes in ...

Aug 23, 2021  This research study analysed the effect of adding fine—fMRA (0.25% and 50%)—and coarse—cMRA (0%, 25% and 50%)—mixed recycled aggregate both

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Effect of Recycled Aggregate Characteristics on Drying ...

Mar 01, 2020  Abstract: The research presented in this paper addresses the effect of coarse recycled concrete aggregate (RCA) on drying shrinkage of concrete designated for transportation infrastructure. Six types of RCA were employed at 30 to 100% replacement rates of virgin coarse aggregate. Two binder systems, including a binary cement with 25% Class C ...

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Mechanical and Durability Properties of Recycled Aggregate ...

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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(PDF) IRJET- Mechanical Properties of Recycled Concrete ...

microstructure of ITZ on compressive strength of [39] Ravindra raj RS, Steward M, Greco D. (2000), concrete prepared with recycled aggregates”, “Variability of recycled concrete aggregate and its Construction and Building Materials, 461-468 effect on concrete properties-A case study in [24] Poon C. S. and Chan, D. (2006), “The use of ...

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Strength and Durability Evaluation of Recycled Aggregate ...

May 14, 2015  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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Shear Strength of Reinforced Recycled Aggregate Concrete ...

Dec 18, 2020  This paper is related to a laboratory program for the shear strength of reinforced concrete corbels (RCC) cast with or without recycled aggregate (RA) by investigating the main parameters affecting the corbels behavior including the replacement aggregate recycling ratio, fcu , and shear span to effective depth ratio a/d. Eight specimens were cast and tested.

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Effect of recycled coarse aggregate on concrete ...

Jun 22, 2011  The effect of recycled coarse aggregate on concrete compressive strength was investigated based on the concrete skeleton theory. For this purpose, 30 mix proportions of concrete with target cube compressive strength ranging from 20 to 60 MPa were cast with normal coarse aggregate and recycled coarse aggregate

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Effect of Recycled Coarse Aggregate on Fresh Properties Of ...

Studied on the usage of recycled concrete aggregate obtained from stamp out concrete for making of SCC, and additionally emphasizing its ecological value. In experiment, three types of concrete mix were made, where the percentage of substitution of coarse aggregate by recycled aggregate was 0%, 25% and 50% is varied.

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Effect of Recycled Aggregate Characteristics on ... - Concrete

Mar 01, 2020  The research presented in this paper addresses the effect of coarse recycled concrete aggregate (RCA) on drying shrinkage of concrete designated for transportation infrastructure. Six types of RCA were employed at 30 to 100% replacement rates of virgin coarse aggregate. Two binder systems, including a binary cement with 25% Class C fly ash and ...

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Effect of natural coarse aggregate type on the physical ...

Feb 18, 2009  However, to our knowledge there are no studies about the influence of the type of natural coarse aggregate (NCA) on the properties of recycled aggregates obtained from crushed concrete. Some studies on this subject have analysed how the quality of the crushed original concrete influences the properties of the recycled coarse aggregate (RCA ...

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Effect of Recycled Aggregate with Glass Fiber on Concrete ...

Effect of Recycled Aggregate with Glass Fiber on Concrete Properties S. R. Rabadiya S. R. Vaniya D.I.E.T. – Rajkot D.I.E.T. – Rajkot Abstract Concrete made from glass fiber and recycled coarse aggregate as partial replacement of coarse aggregate will be studied for workability, compressive strength, tensile strength, and modulus of elasticity.

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(PDF) Effect of Aggregate Type and Specimen Configuration ...

In this paper, concrete mixes utilizing two sizes of natural aggregate and two sources of lightweight and recycled aggregates were used to investigate the effect of aggregate type and specimen size and shape on the compressive strength of concrete.

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(PDF) The Design and Development of Recycled Concretes in ...

Aug 23, 2021  This research study analysed the effect of adding fine—fMRA (0.25% and 50%)—and coarse—cMRA (0%, 25% and 50%)—mixed recycled aggregate both

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Influence of Coarse Aggregate Type on the Mechanical ...

3 小时前  Coarse aggregate is the main composition of the cement concrete [].Some researchers have paid attention to the research of mechanical performances and durability of normal concrete with different coarse aggregate [7,8,9,10].As some researchers [11,12,13] pointed out, the mechanical strength of coarse aggregate was the main factor affecting the mechanical performance of cement concrete when

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Strength and Durability Evaluation of Recycled Aggregate ...

May 14, 2015  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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(PDF) IRJET- Mechanical Properties of Recycled Concrete ...

microstructure of ITZ on compressive strength of [39] Ravindra raj RS, Steward M, Greco D. (2000), concrete prepared with recycled aggregates”, “Variability of recycled concrete aggregate and its Construction and Building Materials, 461-468 effect on concrete properties-A case study in [24] Poon C. S. and Chan, D. (2006), “The use of ...

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(PDF) Environmental impacts of recycled aggregate concrete

In this study recycled coarse aggregates obtained by crushed concrete were used for concrete production. Four different recycled aggregate concretes were

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Effects of the Parent Concrete Properties and Crushing ...

Dec 12, 2013  The most important parameters associated with recycled concrete aggregate (RCA) production that may affect quality and yield include such properties of the parent concrete as the composition, strength and aggregate grading, type of crushers used, number of crushing stages, the size of the RCA particles, and the size reduction sequence.

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Shear Strength of Reinforced Recycled Aggregate Concrete ...

Dec 18, 2020  This paper is related to a laboratory program for the shear strength of reinforced concrete corbels (RCC) cast with or without recycled aggregate (RA) by investigating the main parameters affecting the corbels behavior including the replacement aggregate recycling ratio, fcu , and shear span to effective depth ratio a/d. Eight specimens were cast and tested.

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Effect of Phase Change Materials (PCM’s) on Recycled ...

Jul 22, 2020  Corominas A G and Etxeberria M (2016). Effects of using recycled concrete aggregates on the shrinkage of high performance concrete. Construction and Building Materials, 115:32-41. Dhir R K, Limbachiya M C and Leelawat T (1999). Suitability of recycled concrete aggregate for use in BS 5328 designated mixes.

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