cohesion of fine recycled concrete aggregate

cohesion of fine recycled concrete aggregate

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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Use of recycled fine aggregate in concretes with durable ...

2011-11-1  Blended Portland cement (type I (SM) ASTM or CEM II-M), river siliceous sand, and granitic crushed stone (nominal size 6–20 mm) were used to make the concretes.For recycled concretes, recycled fine aggregate (RFA) obtained from crushed waste concretes of different qualities, and made with granitic stone, were used by replacing different contents (0%, 20%, and 30% by volume) of

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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 and tested

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(PDF) Concrete with Recycled Glass as Fine Aggregates

Recycled waste glasses were used as sand replacement in concrete at 0, 25, 50, 75, and 100% replacement ratios. Diverse concrete properties were tested in fresh and

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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, there is a

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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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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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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 account the high absorption ...

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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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Use of recycled coarse and fine aggregates in structural ...

2021-5-24  Most of the mixes bearing only recycled concrete coarse aggregate (HR-X), only recycled concrete fine (HR-0 + 50) or both jointly (HR-25 + 50, HR-75 + 50 and HR-100 + 50) exhibited higher efficiency (MPa/kg CO 2eq. *m 3) than the reference for the mechanical characteristics analysed. The exceptions were mix HR-0 + 50 for compressive strength ...

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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) Concrete with Recycled Glass as Fine Aggregates

Recycled waste glasses were used as sand replacement in concrete at 0, 25, 50, 75, and 100% replacement ratios. Diverse concrete properties were tested in fresh and hardened states with three ...

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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 (SCC). The effects of RFCBA on ...

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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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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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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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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 control concrete and two

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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 account the high absorption ...

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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 the present study, the

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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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Mechanical Behavior of Fine Recycled Concrete Aggregate ...

The paper describes the mechanical behavior of fine recycled concrete aggregate (FRCA) concrete according to the mineral admixtures. Three types of the mineral admixtures, i.e., fly ash (FA), ground-granulated blast-furnace slag (GGBS), and silica fume (SF), are used and the replacement ratios of FRCA are 50% and 100%.

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Recycled Concrete Aggregate Crushed Concrete

2021-11-20  Recycled Concrete Aggregate is that the use of debris from dismantled concrete structures. utilization is cheaper and a lot of ecological than truckage debris to a lowland.. Crushed debris is often used for road gravel, revetments, holding walls,

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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 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 separated from the rock

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Aggregates - sustainableconcrete.org.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 account the high absorption ...

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