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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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Durability And Performance Characteristics Of Recycled ...

2008-11-3  the recycled aggregate is relatively high compared to the reference basalt aggregate, there was no difficulty in achieving the desired consistency and subsequent compaction of concrete. Compressive strengths were determined on concrete cylinders continuously stored under moist conditions for up to 365 days.

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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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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 characteristics of recycled aggregate concrete ...

2013-9-10  Grade of concrete chosen for the present work is M50 (with a characteristic compressive strength of 50 MPa). The recycled aggregates were collected from demolished structure with 20 years of age. Natural Aggregate (NA) was replaced with Recycled Aggregate (RA) in different percentages such as 25, 50 and 100 to understand its effect.

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Experimental Characterization of Recycled Aggregate ...

In order to remedy this, various stakeholders in the field (suppliers, cement works, research centers, etc.) have valued recycled aggregate concrete (RAC). Recycled aggregates concrete is considered a new type of concrete based on the use of aggregates retrieved from the demolished structures instead of

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Effects of Recycled Aggregate Characteristics on ...

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 close relationship between several

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Characteristics of the carbonation resistance of recycled ...

2013-12-1  Under this condition, fresh recycled aggregate concrete (RAC) requires more water than natural aggregate concrete (NAC) for mixing, which probably lead to high porosity in concrete. Otherwise, because of the old cement paste adhered, the interfacial zone between new cement mortar and aggregate in RAC is usually weaker than that in NAC.

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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 Characteristics of Recycled Concrete after ...

Due to the recycling of construction waste, recycled concrete has gradually become a viable material in the construction industry. To study the strength property of the recycled concrete after freeze-thawing experiments, recycled concrete and ordinary concrete were tested for their post-test strength after freeze-thawing for 0, 50, and 100 times.

More

Durability And Performance Characteristics Of Recycled ...

2008-11-3  the recycled aggregate is relatively high compared to the reference basalt aggregate, there was no difficulty in achieving the desired consistency and subsequent compaction of concrete. Compressive strengths were determined on concrete cylinders continuously stored under moist conditions for up to 365 days.

More

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

More

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

More

Durability characteristics of recycled aggregate concrete ...

2013-9-10  Grade of concrete chosen for the present work is M50 (with a characteristic compressive strength of 50 MPa). The recycled aggregates were collected from demolished structure with 20 years of age. Natural Aggregate (NA) was replaced with Recycled Aggregate (RA) in different percentages such as 25, 50 and 100 to understand its effect.

More

Experimental Characterization of Recycled Aggregate ...

In order to remedy this, various stakeholders in the field (suppliers, cement works, research centers, etc.) have valued recycled aggregate concrete (RAC). Recycled aggregates concrete is considered a new type of concrete based on the use of aggregates retrieved from the demolished structures instead of

More

Effects of Recycled Aggregate Characteristics on ...

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 close relationship between several

More

Bond characteristics of concrete made of recycled ...

2017-5-30  The pull-out test is performed on concrete produced from both natural aggregate and recycled concrete aggregate, and an assessment of the subsequent performance is made. Mechanical properties such as compressive strength, split tensile strength and modulus of rupture are also reported.

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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.

More

On statistical characteristics of the compressive strength ...

2005-6-4  This paper presents a statistical analysis of the compressive strength of recycled aggregate concrete (RAC) with recycled coarse aggregate (RCA) coming from one single source. The statistical analysis includes the mean value, the standard deviation and the coefficient of variation in addition to the probabilistic distribution. In order to obtain the compressive strength variations, 371 cube ...

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Strength Characteristics of Recycled Concrete after ...

Due to the recycling of construction waste, recycled concrete has gradually become a viable material in the construction industry. To study the strength property of the recycled concrete after freeze-thawing experiments, recycled concrete and ordinary concrete were tested for their post-test strength after freeze-thawing for 0, 50, and 100 times.

More

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

More

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

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 assess resistance against chloride ...

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Experimental Characterization of Recycled Aggregate ...

In order to remedy this, various stakeholders in the field (suppliers, cement works, research centers, etc.) have valued recycled aggregate concrete (RAC). Recycled aggregates concrete is considered a new type of concrete based on the use of aggregates retrieved from the demolished structures instead of

More

A Study on the Structural Characteristic of Recycled ...

Download Citation A Study on the Structural Characteristic of Recycled Aggregate Concrete Reinforced Steel Fiber In this study, a sample was fabricated according to the recycled aggregate ...

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(PDF) Mechanical properties of recycled aggregate concrete

The concrete mixtures were prepared with a cement content of 355 kg/m3 and water-to-cement (w/c) ratio of 0.55. The recycled aggregate was used as 0, 20, 50 and 100% replacements of natural aggregate.

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Characteristics of Concrete Prepared with Metakaolin and ...

2019-7-3  Recycled aggregate concrete (RAC) mixes are made by substituting NCA with 100% RCA and ordinary Portland cement with 10, 15 and 20% metakaolin. The workability of fresh concrete mixes is evaluated by slump test. Mechanical properties of concrete are evaluated by means of compressive strength, splitting tensile strength and flexural strength ...

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Durability and Shrinkage Characteristics of Self ...

Recycled fine aggregate (RFA) used in the present study had a size of 0.25–4 mm, a specific gravity of 2.11, and a 24-hour absorption of 17.9%. On the other hand, recycled coarse aggregate (RCA) had a size of 4–16 mm, a specific gravity of 2.37, and a 24-hour absorption of 7.39%.

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Strength Characteristics of Recycled Concrete after ...

Due to the recycling of construction waste, recycled concrete has gradually become a viable material in the construction industry. To study the strength property of the recycled concrete after freeze-thawing experiments, recycled concrete and ordinary concrete were tested for their post-test strength after freeze-thawing for 0, 50, and 100 times.

More

Effect of different substitution of natural aggregate by ...

2014-12-27  The objective of this research was to incorporate recycled aggregate into pervious concrete to create a very sustainable concrete product for many applications. The research methodology interested replacing natural aggregate with recycled aggregate in the pervious concrete production at 4 different replacement levels of 25, 50, 75 and 100 %, with two different water-to-cement ratios of 0.27 ...

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