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Cohesion Of Fine Recycled Concrete Aggregate

Recycled aggregate consisted of crushed concrete (CC) or crushed brick (CB) with particles less than 5 mm in diameter. The free water/cement ratio was kept constant for all mixes. The fine aggregate in concrete was replaced with 0%, 25%, 50% and 100% CC or CB. Cited by: 668.

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Cohesion coefficient of structural concrete made with

The recycled coarse aggregate and the recycled fine aggregate were produced mainly from various reinforced concrete members of a building structure as well as from 300 mm cubic concrete specimens.

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Cohesion coefficient of structural concrete made with

2020-11-18  The cohesion coefficient of structural concrete made with recycled concrete coarse aggregate (RCA) was evaluated independently for the first time, through push-off tests having no clamping force across the shear plane, and compared with the cohesion coefficient of structural concrete made with natural coarse aggregate (NCA).

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(PDF) Recycling concrete as fine aggregate in concrete

Recycled aggregates can become a new source of material, replacing natural aggregates in concrete [1] [2][3]. Authors in [1] examined the use of crushed

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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

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(PDF) Recycled Glass Concrete: Coarse and Fine Aggregates

2018-1-18  Conventional concrete aggregate consists of sand (fine aggregate) and various sizes and shapes of gravel or stones (coarse aggregate). However,

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Properties of concrete incorporating fine recycled aggregate

2005-4-1  Abstract. The properties of concrete containing fine recycled aggregate are investigated. Recycled aggregate consisted of crushed concrete (CC) or crushed brick (CB) with particles less than 5 mm in diameter. The free water/cement ratio was kept constant for all mixes. The fine aggregate in concrete was replaced with 0%, 25%, 50% and 100% CC or CB.

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Design of structural concrete mixtures containing fine

2020-8-20  Thus, the use of Fine Recycled Concrete Aggregate (FRCA) is becoming increasingly important, as this fine fraction is generated in large quantities when recycled coarse aggregates are produced. The majority of literature data relate the inferior quality of recycled concrete to the recycled concrete aggregate (RCA) porosity and, consequently

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British Standards and the use of recycled aggregate in

2021-2-26  The use of recycled concrete aggregate in structural concrete. Transport Research Laboratory. AJJ Calder and CP Roberts. March 2005 • Density and compressive strength • Dynamic modulus • Shrinkage Up to 20% of coarse crushed concrete aggregate does not significantly affect engineering properties.

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Effect of recycled coarse aggregate on damage of recycled

2011-4-3  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

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Cohesion coefficient of structural concrete made with

2020-11-18  The cohesion coefficient of structural concrete made with recycled concrete coarse aggregate (RCA) was evaluated independently for the first time, through push-off tests having no clamping force across the shear plane, and compared with the cohesion coefficient of structural concrete made with natural coarse aggregate (NCA).

get price

Cohesion coefficient of structural concrete made with

2020-11-18  The cohesion coefficient of structural concrete made with recycled concrete coarse aggregate (RCA) was evaluated independently for the first time, through push-off tests having no clamping force ac...

get price

(PDF) Recycling concrete as fine aggregate in concrete

Recycled aggregates can become a new source of material, replacing natural aggregates in concrete [1] [2][3]. Authors in [1] examined the use of crushed concrete produced from waste concrete as

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Fresh and hardened properties of self-compacting

2021-7-13  Clay brick is one of the major components of demolition waste, which is generally landfilled. Effective and new uses of recycled clay brick may provide sustainability benefits in terms of landfill reduction. Therefore, this research aims at applying Recycled fine clay brick aggregates (RFCBA) with sizes from 0.075 mm–4.75 mm to prepare Self-compacting concrete

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British Standards and the use of recycled aggregate in

2021-2-26  The use of recycled concrete aggregate in structural concrete. Transport Research Laboratory. AJJ Calder and CP Roberts. March 2005 • Density and compressive strength • Dynamic modulus • Shrinkage Up to 20% of coarse crushed concrete aggregate does not significantly affect engineering properties.

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Durability of Concrete with Recycled Fine Aggregate

2006-3-22  Recycled fine aggregate includes a large quantity of hydrated cement paste. The cement paste influences qualities of recycled fine aggregate, and, in turn, the properties of concrete containing recycled fine aggregate. As a result, concrete containing recycled fine aggregate has lower strength and durability than concrete with natural aggregate.

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Use of Recycled Aggregates in Construction

2021-9-16  Recycled Aggregates Recycled Concrete Aggregate (RCA) Crushed sound and clean waste concrete of at least 95% by weight of concrete with typical total contamination lower than 1% of the bulk mass. Class 1A RCA is a well graded RCA with no more than 0.5% brick content. Partial replacement (30%) for natural aggregate in concrete for sidewalks

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Recycled Concrete as Aggregate for Structural Concrete

2011-2-16  Recycled aggregate was made by crushing the waste concrete of laboratory test cubes and precast concrete columns. Three types of concrete mixtures were tested: concrete made entirely with natural aggregate (NAC) as a

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Recycled Concrete Aggregates: A Review International

2013-3-29  After demolition of old roads and buildings, the removed concrete is often considered worthless and disposed of as demolition waste. By collecting the used concrete and breaking it up, recycled concrete aggregate (RCA) is created (Fig. 1).This paper focuses on coarse RCA which is the coarse aggregate from the original concrete that is created after the mortar is

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Effect of recycled coarse aggregate on damage of recycled

2011-4-3  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

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The Effect of Fine and Coarse Recycled Aggregates on

2019-4-4  Today, the use of recycled aggregates as a substitute for a part of the natural aggregates in concrete production is increasing. This approach is essential because the resources for natural aggregates are decreasing in the world. In

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Cohesion coefficient of structural concrete made with

2020-11-18  The cohesion coefficient of structural concrete made with recycled concrete coarse aggregate (RCA) was evaluated independently for the first time, through push-off tests having no clamping force ac...

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(PDF) Recycling concrete as fine aggregate in concrete

Recycled aggregates can become a new source of material, replacing natural aggregates in concrete [1] [2][3]. Authors in [1] examined the use of crushed concrete produced from waste concrete as

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Sustainable Application of Fine Recycled-Concrete

The use of construction and demolition waste is an effective solution to mitigate their environmental impacts and avoid dispose in landfills. This paper aims to evaluate the use of fine recycled-concrete aggregate (FRCA) in grout mixtures used in soil nailing.

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Durability of Concrete with Recycled Fine Aggregate

2006-3-22  Recycled fine aggregate includes a large quantity of hydrated cement paste. The cement paste influences qualities of recycled fine aggregate, and, in turn, the properties of concrete containing recycled fine aggregate. As a result, concrete containing recycled fine aggregate has lower strength and durability than concrete with natural aggregate.

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Use of Recycled Aggregates in Construction

2021-9-16  Recycled Aggregates Recycled Concrete Aggregate (RCA) Crushed sound and clean waste concrete of at least 95% by weight of concrete with typical total contamination lower than 1% of the bulk mass. Class 1A RCA is a well graded RCA with no more than 0.5% brick content. Partial replacement (30%) for natural aggregate in concrete for sidewalks

get price

Recycled Concrete Aggregates: A Review International

2013-3-29  After demolition of old roads and buildings, the removed concrete is often considered worthless and disposed of as demolition waste. By collecting the used concrete and breaking it up, recycled concrete aggregate (RCA) is created (Fig. 1).This paper focuses on coarse RCA which is the coarse aggregate from the original concrete that is created after the mortar is

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Aggregates sustainableconcrete.uk

Recycled concrete is a viable source of aggregate and has been satisfactorily used in granular subbases, soil-cement, and in new concrete. Recycled aggregates are classified in one of two ways, as: Recycled Aggregate (RA), or as; Recycled Concrete Aggregate (RCA). Fine aggregates. Fine aggregate are basically sands won from the land or the

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Mechanical Behavior of Recycled Fine Aggregate Concrete

2019-12-2  Influence of recycled fine aggregate on microstructure and hardened properties of concrete. Magazine of Concrete Research, 69(24), 1288–1295. Article Google Scholar Kurda, R., Brito, J., & Silvestre, J. D. (2017). Indirect evaluation of the compressive strength of recycled aggregate concrete with high fly ash ratios.

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Effect of recycled coarse aggregate on damage of recycled

2011-4-3  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

get price
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