the role of recycled aggregates in selfcompacting concrete

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The Role of Recycled Aggregates in Self-Compacting Concrete

2004-5-1  The American Concrete Institute. Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations involved in concrete

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Self-compacting concrete with recycled concrete aggregate ...

2017-12-30  Coarse and fine recycled concrete aggregates are used in self-compacting concrete.

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Use of waste marble and recycled aggregates in self ...

2014-12-1  Recycled aggregates were used in a wet condition, but not saturated, to control their fresh concrete properties, effective w/c ratio and lower strength variability. The lower modulus of elasticity of recycled coarse aggregate concrete with respect to conventional concrete, was found.

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Use of waste marble and recycled aggregates in self ...

In this study, the effect of fine and coarse recycled concrete aggregates (RCA) was evaluated by replacing 25%, 50%, 75% and 100% in self-compacting concretes (SCC) on mechanical properties such ...

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The Effect of Recycled Concrete Aggregates and Metakaolin ...

2018-10-3  Using recycled concrete from demolished buildings as an aggregate in new concrete preparation can have a significant role in the sustainable development of the concrete industry; therefore, in this research work, the effect of employing different percentages (i.e., 20, 40, 60, 80 and 100%) of recycled concrete aggregates and the impact of using ...

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Self-Compacting Concrete with Recycled Aggregate—A

2020-12-16  materials Review Influence of Design Parameters on Fresh Properties of Self-Compacting Concrete with Recycled Aggregate—A Review Rebeca Martínez-García 1,*, P. Jagadesh 2, Fernando J. Fraile-Fernández 1, Julia M. Morán-del Pozo 3 and Andrés Juan-Valdés 3 1 Department of Mining Technology, Topography, and Structures, University of León, Campus de Vegazana s/n, 24071 León,

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The role of industrial by-products in self-compacting concrete

2011-8-1  1. Introduction. The development of self-compacting concrete is considered as a milestone achievement in concrete technology due to several advantages: high performance of both fresh and hardened concrete (high flowability and segregation resistance, low porosity, high strength and durability, etc.); wider applications (components and structures with complicated shape and highly congested by ...

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Experimental Study on Thermal Conductivity of Self ...

2017-5-6   The shrinkage and creep of recycled concrete are maintained when coarse aggregate replacement is less than 20%, whereas with a 100% replacement of coarse aggregate, shrinkage can increase up to 50% and creep between 30% and 60%.

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The influence of recycled aggregates from precast elements ...

2018-9-10  The recycled aggregates are in turn taken from rejected structural precast concrete pieces. The high-quality of these RA is expected to contribute to the manufacture of high-performance concretes, with good self-compactability and high strengths.

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Recycling Aggregates for Self-Compacting Concrete ...

Using recycled aggregates is a relatively recent scientific area, however, studies on this material in the manufacture of self-compacting concrete have proven the feasibility thereof for conventional structural elements as well as high-performance and complex structural elements, densely reinforced structures, difficult-to-access formwork and ...

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The Effect of Recycled Concrete Aggregates and Metakaolin ...

2018-10-3  Using recycled concrete from demolished buildings as an aggregate in new concrete preparation can have a significant role in the sustainable development of the concrete industry; therefore, in this research work, the effect of employing different percentages (i.e., 20, 40, 60, 80 and 100%) of recycled concrete aggregates and the impact of using ...

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USE OF RECYCLED CONCRETE POWDER IN SELF-COMPACTING CONCRETE

2001-7-29  USE OF RECYCLED CONCRETE POWDER IN SELF-COMPACTING CONCRETE. Although 37 million tons of concrete wastes have been generated annually in Japan, the use of recycled aggregate for concrete is limited because of low density and high absorption due to adhered cement paste and mortar.

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Use of waste marble and recycled aggregates in self ...

In this study, the effect of fine and coarse recycled concrete aggregates (RCA) was evaluated by replacing 25%, 50%, 75% and 100% in self-compacting concretes (SCC) on mechanical properties such ...

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The role of industrial by-products in self-compacting concrete

This experimental study deals with utilization of Coarse Recycled Concrete Aggregate (CRCA) and Fine Recycled Concrete Aggregates (FRCA) in Self Compacting Concrete (SCC) mixes. The concrete mix ...

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Examining the Influence of Recycled Concrete Aggregate on ...

Recycled concrete aggregate (RCA) derived from demolition waste has been widely explored for use in civil engineering applications. ... To date, the information reported on the role of RCA in the ...

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(PDF) Effect of fine recycled concrete aggregate on the ...

A detailed study is presented in this paper of 18 mixtures (SF3 slump-flow class) containing 100 % coarse recycled concrete aggregate, two types of cement (CEM I or CEM III/A, the latter with 45 % ...

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Recycled Aggregates - Portland Cement Association

Recycled concrete aggregates produced from all but the poorest quality original concrete can be expected to pass the same tests required of conventional aggregates. Recycled concrete aggregates contain not only the original aggregates, but also hydrated cement

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(PDF) Flow Characteristics of Recycled Coarse Aggregates ...

2021-7-7  In the present study, the effects of recycled concrete aggregates as a partial replacement for fine (by 50%) and coarse aggregates (by 100%) were examined in the self-compacting concrete mixtures ...

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A Study on Self-curing and Self-compacting Concrete Using ...

Investigating properties of fresh and hardened self-compacting concrete made of recycled aggregates Self-compacting concrete is a new high performance concrete with high ductility and segregation resistance. In recent years, construction material manufacturers have focused their attention on lightweight concrete and have strived to use ...

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USE OF RECYCLED CONCRETE POWDER IN SELF-COMPACTING CONCRETE

2001-7-29  USE OF RECYCLED CONCRETE POWDER IN SELF-COMPACTING CONCRETE. Although 37 million tons of concrete wastes have been generated annually in Japan, the use of recycled aggregate for concrete is limited because of low density and high absorption due to adhered cement paste and mortar.

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Research Article Properties of Self-Compacting Concrete ...

2019-7-30  Recycled aggregate . C - [ ], respectively. e recycled aggregate used was a crushed and unwashed recycled concrete aggregate, with a nominal size of mm sourced from a construction and demolition waste recycling facility. e coarse natural aggregate consisted of crushed granite with a nominal size of mm. Table presents the water absorption ( hours)

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Enhancing the Durability of Self-Compacted Concrete

2017-7-1  As the increase in using recycled aggregates with different concrete types due to the environmental and economic considerations, information on the quality of recycled aggregate concrete is still scarce. This study attempts to examine the ability of improving the durability of recycled aggregate SCC against sulfates and chlorides.

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Recycled Aggregates - Portland Cement Association

Recycled concrete aggregates produced from all but the poorest quality original concrete can be expected to pass the same tests required of conventional aggregates. Recycled concrete aggregates contain not only the original aggregates, but also hydrated cement

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The Effect of Fine and Coarse Recycled Aggregates on Fresh ...

In the present study, the effects of recycled concrete aggregates as a partial replacement for fine (by 50%) and coarse aggregates (by 100%) were examined in the self-compacting concrete mixtures which contain air-entraining agents and silica fumes. Two series of self-compacting concrete

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The Effect of Recycled Concrete Aggregates and Metakaolin ...

Nowadays, finding appropriate solutions for reducing the environmental pollutions as a consequence of buildings is important. Using recycled concrete from demolished buildings as an aggregate in new concrete preparation can have a significant role in the sustainable development of the concrete industry; therefore, in this research work, the effect of employing different percentages (i.e., 20 ...

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Split Tensile Strength of Self-Compacting Concrete with

2021-7-10  however, they are minimal. Most of the studies use recycled coarse aggregates in the manufacture of concrete [19–22], the least use recycled fine aggregates [23–26], other studies use aggregates of different nature [27–30], although most are aggregates from concrete waste [31–34]. Other studies focus on the manufacture of mortars [35 ...

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Fresh and hardened properties of self-compacting concrete ...

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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A Study on Self-curing and Self-compacting Concrete Using ...

Investigating properties of fresh and hardened self-compacting concrete made of recycled aggregates Self-compacting concrete is a new high performance concrete with high ductility and segregation resistance. In recent years, construction material manufacturers have focused their attention on lightweight concrete and have strived to use ...

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Mechanical and Durability Properties of Recycled Aggregate ...

2019-5-10  The durability tests like carbonation properties were conducted on recycled concrete aggregate along with basalt fiber. The percentage of recycled aggregate replacement was varied as 0, 50, and 100%, whereas the percentage of basalt fiber was varied as 0, 2, and 4 kg/m 3. In hardened concrete, compressive strength, split tensile strength test ...

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