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effect of recycled concrete coarse aggregate from multiple

effect of recycled concrete coarse aggregate from multiple

Effect of recycled concrete coarse aggregate from multiple ...

2013-10-1  This study evaluated the effect of fully replacing natural aggregate (NA) with several sources of recycled concrete aggregate (RCA) on the various mechanical properties of multiple concrete mixtures having equivalent compressive strength and slump (compressive strengths between 40 and 60 MPa and slumps between 75 and 125 mm).The RCA concrete (having

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Effect of recycled coarse aggregate on physical and ...

2021-7-9  Butler, L, West, JS, Tighe, S (2013) Effect of recycled concrete coarse aggregate from multiple sources on the hardened properties of concrete with equivalent compressive strength. Construction and Building Materials 47: 1292 – 1301. Google Scholar Crossref

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Impact of Multiple Recycling on the Strength of Coarse ...

The present study aims to investigate the effect of repeated recycling. on strength of aggregate s aid to be recycled c oncrete aggregate (RC A). Two

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Study on the Effect of Recycled Coarse Aggregate on the ...

2021-11-29  Shrinkage property is a significant indicator of the durability of concrete, and the shrinkage of green recycled concrete is particularly problematic. In this paper, construction waste was crushed and screened to generate simple-crushed recycled coarse aggregate (SCRCA). The SCRCA was then subjected to particle shaping to create primary particle-shaped recycled

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Effect of Recycled Coarse Aggregate Type on Concrete ...

2014-5-13  Using multilinear correlation analysis, the influences of these aggregate characteristics and other parameters on the properties of recycled aggregate concrete were evaluated. The results showed that the performance of the concrete containing each type of RA was largely influenced by the aggregate nature and quality, in addition to attached ...

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Effect of Recycled Coarse Aggregate on Concrete

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 concrete ...

2011-6-22  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.

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(PDF) Effect of Recycled Concrete Aggregate Properties on ...

Primary concrete with pebble coarse aggregate was used as the source of recycled pebble, all or part of natural pebble was replaced with recycled pebble to

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Effect of Recycled Plastic Aggregates on Concrete

2020-4-20  concrete and concrete made by replacing 100% coarse aggregate with plastic aggregates. The water cement ratio was taken as 0.4, 0.42, 0.44, 0.46, 0.48, 0.50, and 0.52. The thermocouples were made with the copper and constantan wires connected with the ends by welding or shouldering. The test set up is explained in Chapter 3. The emf of the

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The Environmental Impact of Recycled Concrete

2012-8-14  4. Characteristics of recycled concrete aggregate The international literature provided numerous works at recycled concrete aggregate area, mainly from the beginning of 1980 (Hansen, 1992). The topics most investigated are durability and mechanical characteristics. The quality of aggregates made of recycled concrete affects directly the

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Impact of Multiple Recycling on the Strength of Coarse ...

2020-12-9  this field may be the effect of repeated or multiple recycling and in this regard this study is very important to establish a guideline for concrete recycling and subsequent use of the recycled aggregate. The present study aims to investigate the effect of repeated recycling on strength of aggregate said to be recycled concrete aggregate (RCA).

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Effect of Recycled Coarse Aggregate and Bagasse Ash on

Numerous research studies have been conducted to improve the weak properties of 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

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Effect of Recycled Coarse Aggregate Type on Concrete ...

2014-5-13  Using multilinear correlation analysis, the influences of these aggregate characteristics and other parameters on the properties of recycled aggregate concrete were evaluated. The results showed that the performance of the concrete containing each type of RA was largely influenced by the aggregate nature and quality, in addition to attached ...

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Effect of Recycled Coarse Aggregate on Concrete

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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(PDF) Effect of recycled coarse aggregate on damage of ...

The surface of recycled coarse aggregate is generally full of pores, presenting high water absorption, which affects the interfacial transition zone

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Effect of recycled coarse aggregate on concrete ...

2011-6-22  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.

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(PDF) Effect of Recycled Concrete Aggregate Properties on ...

Primary concrete with pebble coarse aggregate was used as the source of recycled pebble, all or part of natural pebble was replaced with recycled pebble to prepare concrete. 99 specimens were ...

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The Environmental Impact of Recycled Concrete

2012-8-14  4. Characteristics of recycled concrete aggregate The international literature provided numerous works at recycled concrete aggregate area, mainly from the beginning of 1980 (Hansen, 1992). The topics most investigated are durability and mechanical characteristics. The quality of aggregates made of recycled concrete affects directly the

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Effect of recycled concrete aggregates on strength and ...

2018-11-1  This paper investigates the effect of recycled con-crete aggregate (RCA) on the rate of concrete compressive strength and stiffness gain with time and on the bond strength between seven-wire steel prestressing strand and concrete. The use of RCA did not have a significant effect on the rate of concrete compressive strength or stiffness

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(PDF) The Effects of Recycled Aggregates on Compressive ...

The optimal mixture of recycled aggregate concrete is obtained as water cement ratio of 0.5, volume ratio of recycled coarse aggregate of 42.0%, 100% replacement of river sand, 0% crushed brick ...

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Impact of Multiple Recycling on the Strength of Coarse ...

2020-12-9  this field may be the effect of repeated or multiple recycling and in this regard this study is very important to establish a guideline for concrete recycling and subsequent use of the recycled aggregate. The present study aims to investigate the effect of repeated recycling on strength of aggregate said to be recycled concrete aggregate (RCA).

get price

Effect of Recycled Coarse Aggregate and Bagasse Ash on

Numerous research studies have been conducted to improve the weak properties of 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

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Prediction of recycled coarse aggregate concrete ...

The purpose of this study is to apply multiple linear regressions (MLRs) and artificial neural network (ANN) to predict the mechanical properties, such as compressive strength (CS), flexural strength (FS) and split tensile strength (STS) of concrete at the age of 28 days curing made completely from the recycled coarse aggregate (RCA).

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Effect of Recycled Aggregate Characteristics on ... - Concrete

2020-3-1  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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Effect of Use of Recycled Coarse Aggregate in Concrete ...

A comparative analysis of the experimental results of the properties of Natural Aggregate Concrete and different replacement ratios of natural aggregates with recycled coarse aggregates is presented in the paper. Recycled aggregate was made by crushing the waste concrete of laboratory test cubes. Four type of concrete mixtures were tested: concrete made entirely with

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Effect of recycled concrete aggregates on strength and ...

2018-11-1  This paper investigates the effect of recycled con-crete aggregate (RCA) on the rate of concrete compressive strength and stiffness gain with time and on the bond strength between seven-wire steel prestressing strand and concrete. The use of RCA did not have a significant effect on the rate of concrete compressive strength or stiffness

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Effects of Recycled Aggregate Characteristics ... - Concrete

2000-4-1  Title: Effects of Recycled Aggregate Characteristics on Performance Parameters of Recycled Aggregate Concrete Author(s): S. Nagataki, A. Gokce, and T. Saeki Publication: Symposium Paper Volume: 192 Issue: Appears on pages(s): 53-72 Keywords: compressive strength; mortar; porosity; recycling; water Date: 4/1/2000 Abstract: This study points out the

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Effects of Recycled Aggregate on Concrete Mix and

2019-6-25  The unit weight of the concrete ranged from 2365 to 2175 kg/m 3, depending on aggregate content (Figure 6).Increasing the recycled aggregate content reduces the unit weight and density of the concrete, resulting in lighter concrete (Figure 6).The unit weights of the 15%, 20%, and 25% mixes were reduced by 8%, 11%, and 11.5%, respectively, compared to plain

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

2009-2-18  On each coarse aggregate sample (four natural and eight recycled coarse aggregates) different physical and mechanical properties were determined, such as specific gravity at saturated and surface-dry state, water absorption in 24 h, weight loss by the Los Angeles abrasion test, percentage of material finer than 75 μm, unit weight measured by ...

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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

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