characteristics of recycled aggregate

characteristics of recycled aggregate

Performance characteristics of recycled concrete

Use of recycled concrete aggregates (RCA) as a pavement material is one of the most sustainable engineering applications for the pavement industry. Investigation on the performance characteristics of RCA, such as elastic and plastic deformations of RCA is therefore, needed to assess RCA's applicatio

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Crushing characteristics of a recycled aggregate from ...

2018-1-30 · The amount of crushed aggregate with a grain size of over 20 mm is approximately 28% and the amount with a grain size in the range 10–20 mm is 72%. After crushing, the size of most of the aggregate was less than 20 mm. Such variation in grain size distribution can be important when recycled aggregates are used for compaction materials.

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Performance characteristics of recycled concrete

2019-9-27 · Review Article Performance characteristics of recycled concrete aggregate as an unbound pavement material S. Jayakodyb,*, C. Gallagea, J. Ramanujama a School of Civil Engineering & Built Environment, Science and Engineering Faculty, Queensland University of Technology, Brisbane, Australia b Faculty of Engineering, South Eastern University of Sri

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PROPERTIES OF RECYCLED AGGREGATE CONCRETE

2015-2-18 · the recycled aggregate comes from many different sources, the uneven quality, i.e. variations in the properties of recycled aggregate are much more pro-nounced than as is the case with natural aggregates. Figure 2. Appearance of the recycled aggregate grains [2] 2.1. Aggregate grading Grading of recycled coarse aggregate

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Durability And Performance Characteristics Of Recycled ...

2008-11-3 · characteristics of fresh and hardened recycled aggregate concrete and natural aggregate concrete is relatively narrower han reported for laboratoryt -crushed recycled aggregate concrete mixes. For concrete without blast furnace slag, having similar volumetric mix proportions and workability,

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Durability characteristics of recycled aggregate concrete ...

Durability characteristics of recycled aggregate concrete were studied with Rapid chloride penetration test (as per ASTMC1202), sorptivity test and acid test to

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Durability characteristics of recycled aggregate concrete ...

2013-9-10 · Durability characteristics of recycled aggregate concrete were studied with Rapid chloride penetration test (as per ASTMC1202), sorptivity test and acid test to assess resistance against chloride ion penetration, capillary suction and chemical attack respectively. Mix design for 50 MPa gives around 35 MPa after replacing natural aggregate with ...

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Strength and Deformation Characteristics of Recycled ...

2012-5-7 · To investigate the feasibility of the use of recycled concrete aggregate as the backfill material of geotechnical engineering structures, such as embankments, geo-synthetic reinforced soil retaining walls and bridge abutments, a series of drained triaxial compression tests were performed. Both axial and lateral strains were measured locally.

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Characterization of Recycled Coarse Aggregate (RCA) via a ...

2014-5-20 · Recycled coarse aggregate (RCA) made from waste concrete is not a suitable structural material as it has high absorption of cement mortar, which adheres on the aggregate surface and on the tiny cracks thereon. Therefore, when using RCA made from waste concrete, much water must be added with the concrete, and slump loss occurs when transporting.

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Characteristics of recycled aggregate concretes produced ...

2014-12-24 · Thirty one concrete mixes made of various combinations of coarse and fine recycled aggregates (produced in Kuwait from demolition waste) were cast and tested. The possibility of producing structural grade concrete using the recycled concrete aggregates (RCA) produced in Kuwait has been investigated in this study. The cube compressive strength of these concretes

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Performance characteristics of recycled concrete

2019-9-27 · Review Article Performance characteristics of recycled concrete aggregate as an unbound pavement material S. Jayakodyb,*, C. Gallagea, J. Ramanujama a School of Civil Engineering & Built Environment, Science and Engineering Faculty, Queensland University of Technology, Brisbane, Australia b Faculty of Engineering, South Eastern University of Sri

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Recycled Aggregates - Portland Cement Association

Recycled Aggregate Characteristics. The crushing characteristics of hardened concrete are similar to those of natural rock and are not significantly affected by the grade or quality of the original concrete. Recycled concrete aggregates

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Durability And Performance Characteristics Of Recycled ...

2008-11-3 · characteristics of fresh and hardened recycled aggregate concrete and natural aggregate concrete is relatively narrower han reported for laboratoryt -crushed recycled aggregate concrete mixes. For concrete without blast furnace slag, having similar volumetric mix proportions and workability,

Read More

Durability characteristics of recycled aggregate concrete ...

Durability characteristics of recycled aggregate concrete were studied with Rapid chloride penetration test (as per ASTMC1202), sorptivity test and acid test to

Read More

Characterization of Recycled Coarse Aggregate (RCA) via a ...

2014-5-20 · Recycled coarse aggregate (RCA) made from waste concrete is not a suitable structural material as it has high absorption of cement mortar, which adheres on the aggregate surface and on the tiny cracks thereon. Therefore, when using RCA made from waste concrete, much water must be added with the concrete, and slump loss occurs when transporting.

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Pore characteristics of recycled aggregate concrete and its ...

2020-11-25 · Pore characteristics of recycled aggregate concrete and its relationship with durability under complex environmental Construction and Building Materials ( IF 6.141) Pub Date : 2020-11-24, DOI: Jiangang Wang, Jinxi Zhang, Dandan Cao

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Strength and Deformation Characteristics of Recycled ...

2012-5-7 · To investigate the feasibility of the use of recycled concrete aggregate as the backfill material of geotechnical engineering structures, such as embankments, geo-synthetic reinforced soil retaining walls and bridge abutments, a series of

Read More

Durability characteristics of recycled aggregate concrete ...

2013-9-10 · Durability characteristics of recycled aggregate concrete were studied with Rapid chloride penetration test (as per ASTMC1202), sorptivity test and acid test to assess resistance against chloride ion penetration, capillary suction and chemical attack respectively. Mix design for 50 MPa gives around 35 MPa after replacing natural aggregate with ...

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Shear Characteristics of the Interface between Recycled ...

2021-9-15 · To investigate the interface shear characteristics between various geosynthetics and recycled concrete aggregate (RCA), 30 large-scale monotonic direct shear tests were conducted. The main work was to analyse the effect of a biaxial polypropylene geogrid, a glass fiber geogrid, a warp-knitted polyester geogrid, a woven geotextile, and geonet on the interface shear

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Performance characteristics of recycled concrete

2019-9-27 · Review Article Performance characteristics of recycled concrete aggregate as an unbound pavement material S. Jayakodyb,*, C. Gallagea, J. Ramanujama a School of Civil Engineering & Built Environment, Science and Engineering Faculty, Queensland University of Technology, Brisbane, Australia b Faculty of Engineering, South Eastern University of Sri

Read More

Recycled Aggregates - Portland Cement Association

Recycled Aggregate Characteristics. The crushing characteristics of hardened concrete are similar to those of natural rock and are not significantly affected by the grade or quality of the original concrete. Recycled concrete aggregates

Read More

Characterization of Recycled Coarse Aggregate (RCA) via a ...

2014-5-20 · Recycled coarse aggregate (RCA) made from waste concrete is not a suitable structural material as it has high absorption of cement mortar, which adheres on the aggregate surface and on the tiny cracks thereon. Therefore, when using RCA made from waste concrete, much water must be added with the concrete, and slump loss occurs when transporting.

Read More

Strength and Deformation Characteristics of Recycled ...

2012-5-7 · To investigate the feasibility of the use of recycled concrete aggregate as the backfill material of geotechnical engineering structures, such as embankments, geo-synthetic reinforced soil retaining walls and bridge abutments, a series of drained triaxial compression tests were performed. Both axial and lateral strains were measured locally.

Read More

(PDF) Mechanical properties of recycled aggregate concrete

In this study, recycled coarse aggregate concrete (RAC) with incorporation of high-performance water-reducer and air-entraining agent was designed with a water to cement ratio of 0.25.

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Shear Characteristics of the Interface between Recycled ...

2021-9-15 · To investigate the interface shear characteristics between various geosynthetics and recycled concrete aggregate (RCA), 30 large-scale monotonic direct shear tests were conducted. The main work was to analyse the effect of a biaxial polypropylene geogrid, a glass fiber geogrid, a warp-knitted polyester geogrid, a woven geotextile, and geonet on the interface shear

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(PDF) Durability Properties of Recycled Aggregate

The characteristics of ITZs in recycled aggregate concrete are also measured and used to explain the influence of recycled aggregate on the mentioned properties. Additionally, the double-mixing ...

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Effects of recycled aggregate composition on the ...

2020-5-30 · The mechanical characteristics (unconfined compressive strength, splitting strength and uniaxial compression modulus) of CSCRM have been investigated in the case of using different recycled aggregate contents, recycled aggregate

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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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Strength and Durability Evaluation of Recycled

2017-8-29 · Keywords: recycled aggregate, concrete properties, physical properties, mechanical properties. 1. Introduction Utilizing recycled aggregate is certainly an important step towards sustainable development in the concrete industry and management of construction waste. Recycled aggregate (RA) is a viable alternative to natural aggregate, which helps

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