properties of concrete with recycled concrete aggregate

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Properties of Concrete with Recycled Concrete Aggregate ...

The research presented in this article focuses on the technological conditions of using metallurgical waste in its original form and as a component of recycled concrete aggregate (RCA). The use of metallurgical sludge waste or crushed or round RCA to produce concrete deteriorates the consistency and does not significantly affect the air content ...

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Properties of recycled concrete aggregate and their ...

Jun 01, 2018  1. Introduction. Concrete is known as one of the most highly consumed construction materials. The primary ingredients of a concrete mixture are cement, aggregates (coarse and fine), water and admixtures (Mindess et al., 2003; National Ready Mixed Concrete Association (NRMCA), 2012).Among the aforementioned components, aggregate takes up about 70% to 80% of concrete’s

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Mechanical properties of concrete with recycled coarse ...

Jan 01, 2007  This paper reports the results of an experimental study on some of the mechanical properties of recycled aggregate concrete (RAC) as compared to those of the conventional normal aggregate concrete (NAC). Ten mixes of concrete with target compressive cube strength ranging from 20 to 50 MPa were cast using normal or recycled coarse aggregates ...

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PROPERTIES OF RECYCLED AGGREGATE CONCRETE

Mirjana Malešev, et al., Properties of recycled aggregate concrete Contemporary Materials, V −2 (2014) Page 242 of 249 2.4. Bulk density of aggregate The bulk density of the recycled aggregate, due to a higher porosity of mortar layer, has a lower value than the bulk density of natural aggregates and ...

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Properties of Concrete with Recycled Concrete Aggregate ...

Properties of Concrete with Recycled Concrete Aggregate Containing Metallurgical Sludge Waste. Materials (Basel). 2020 Mar 22;13 (6):1448. doi: 10.3390/ma13061448.

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Properties of Concrete with Recycled Concrete Aggregate ...

The research presented in this article focuses on the technological conditions of using metallurgical waste in its original form and as a component of recycled concrete aggregate (RCA). The use of metallurgical sludge waste or crushed or round RCA to produce concrete deteriorates the consistency and does not significantly affect the air content ...

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Mechanical properties of concrete with recycled coarse ...

Jan 01, 2007  This paper reports the results of an experimental study on some of the mechanical properties of recycled aggregate concrete (RAC) as compared to those of the conventional normal aggregate concrete (NAC). Ten mixes of concrete with target compressive cube strength ranging from 20 to 50 MPa were cast using normal or recycled coarse aggregates ...

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(PDF) “Mechanical Properties of Concrete with Recycled ...

This paper reports the results of an experimental study on some of the mechanical properties of recycled aggregate concrete. (RAC) as compared to those of the conventional normal aggregate ...

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Investigation of Properties of Concrete Produced with ...

abrasion resistance) of recycled aggregate. It is seen that the mechanical and durability conduct of recycled aggregate concrete is optional to that of standard concrete yet with the utilizing various admixture and unique blending approach, required properties can be accomplished.

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Recycled Concrete Aggregates – Its Uses, Properties ...

Aug 18, 2020  History. Recycled concrete aggregates or Crushed concrete aggregates has been in use since the ancient times, only to be integrated with gravel, sand, and cement to ensure durability. The practice was first recorded in the 1860s. US construction companies were reluctant to use the technique at first since crushing cured concrete proved to be much more cost-intensive in terms of labor.

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Properties of Self-Compacting Concrete with Recycled ...

The recycled aggregate used was a crushed and unwashed recycled concrete aggregate, with a nominal size of 10 mm sourced from a construction and demolition waste recycling facility. The coarse natural aggregate consisted of crushed granite with a nominal size of 10 mm. Table 1 presents the water absorption (24 hours) and density of the natural ...

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A Study on the Properties of Recycled Aggregate Concrete ...

aggregate fine powder, and impurities. The characteristics of concrete using a recycled aggregate type and ratio were studied. 2. Scope and Method of Research In this research, the quality improvement of the recycled fine aggregate and the characteristics of concrete using recycled aggregate have been studied through the following studies.

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Properties of recycled concrete aggregate under different ...

of recycled aggregate concrete on mass transport of concrete such as initial surface absorption test (Isat) and sorptivity. Moreover, there is still a need to signify the impact of various curing conditions on properties of concrete made with differ-ent percentages of recycled aggregate. In the present study the effects of different curing ...

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Mechanical Properties Of Recycled Aggregates Concrete ...

2.6 Recycled Concrete as Aggregate for Structural Concrete Production. A comparative analysis of the experimental results of the properties of fresh and hardened concrete with different replacement ratios of natural with recycled coarse aggregate is presented in the paper.

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Mechanical properties of recycled concrete with demolished ...

This paper presents an experimental investigation on the effect of the replacement of natural coarse aggregate (NCA) with either recycled concrete aggregate (RCA) or recycled clay brick aggregate (RBA) on the compressive strengths of the hardened concrete. Two grades (C25 and C50) of concrete were investigated, which were achieved by using different water-to-cement ratios. In each grade ...

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Recycled Concrete Aggregates: Its Properties Uses

Jun 27, 2019  Recycled concrete aggregate as such, holds original aggregate with hydrated cement paste. Hence first, that demolished concrete is cleaned from dirt and other loose particles. After that, it is broken into smaller pieces to produce aggregate known as recycled concrete aggregate. Recycled concrete aggregates are available in size of 20mm to 50mm.

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Mechanical and Durability Properties of Concrete Produced ...

study mechanical and durability properties of concrete. In this method, recycled aggregate was heated to a temperature of 250°C (482°F) and then the aggregates were dry-mixed in a pan mixture to remove the attached mortar. This method removed 70 to 80% of attached mortar of the RCA. Concrete mixtures were prepared by using 50% and 100% RCA and

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Adhesion between Asphalt and Recycled Concrete Aggregate ...

Dec 12, 2018  Recycled concrete aggregates (RCA) are less than 40 mm in particle size and are produced from waste concrete after sorting, carving, crushing, and grading. RCA can be widely used in non-load-bearing structural concrete, such as foundation cushions, gutters, drainage troughs, coastal protection dikes, and so on.

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Properties of Concrete with Recycled Concrete Aggregate ...

Properties of Concrete with Recycled Concrete Aggregate Containing Metallurgical Sludge Waste. Materials (Basel). 2020 Mar 22;13 (6):1448. doi: 10.3390/ma13061448.

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Properties of Concrete with Recycled Concrete Aggregate ...

The research presented in this article focuses on the technological conditions of using metallurgical waste in its original form and as a component of recycled concrete aggregate (RCA). The use of metallurgical sludge waste or crushed or round RCA to produce concrete deteriorates the consistency and does not significantly affect the air content ...

Get Price

PROCESSING AND PROPERTIES OF RECYCLED AGGREGATE

properties are well-known factors of recycled aggregate concrete(RAC): a lower density, elastic modulus, strength and a higher water absorption capacity. Due to the fact that recycled aggregate has a proportional mortar which attached to aggregate, it gives a higher porosity and a lower strength to RAC than the normal concrete.

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Properties of recycled concrete aggregate under different ...

of recycled aggregate concrete on mass transport of concrete such as initial surface absorption test (Isat) and sorptivity. Moreover, there is still a need to signify the impact of various curing conditions on properties of concrete made with differ-ent percentages of recycled aggregate. In the present study the effects of different curing ...

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A Study on the Properties of Recycled Aggregate Concrete ...

aggregate fine powder, and impurities. The characteristics of concrete using a recycled aggregate type and ratio were studied. 2. Scope and Method of Research In this research, the quality improvement of the recycled fine aggregate and the characteristics of concrete using recycled aggregate have been studied through the following studies.

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

Jul 13, 2021  Clay brick belongs to another type of recycled aggregate. Compared to crushed concrete aggregate, recycled clay brick has a much higher porosity (around 20% [16,17,18,19,20]) and water absorption (between 15–28% [21,22,23,24]). However, its high water absorption is generally considered to harm the mechanical properties of concrete.

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Properties of High-Workability Concrete with Recycled ...

This study presents the effects of recycled concrete aggregate (RCA) on the key fresh and hardened properties of concrete. RCA was used to produce high-workability concrete substituting 0-100% ...

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Recycled Concrete Aggregates: Its Properties Uses

Jun 27, 2019  Recycled concrete aggregate as such, holds original aggregate with hydrated cement paste. Hence first, that demolished concrete is cleaned from dirt and other loose particles. After that, it is broken into smaller pieces to produce aggregate known as recycled concrete aggregate. Recycled concrete aggregates are available in size of 20mm to 50mm.

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Performance of Pervious Concrete with Recycled Concrete ...

Aug 19, 2020  Methodology. Recycled concrete aggregates are generally more porous than the primary coarse aggregates. The main property of pervious concrete is its permeability, so the part of fine aggregate can be reduced and the part of natural aggregate can be replaced with recycled concrete aggregate to enhance permeability without much affecting the strength of the concrete.

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The Design and Development of Recycled Concretes in a ...

Aug 23, 2021  Concrete is the most used material in the construction sector worldwide, with the EU and USA producing 165 and 150 million cubic metres, respectively, in 2018 [].This industry is characterised by requiring large amounts of natural resources, as this material is mainly composed of aggregates—60–75% of the volume of concrete—and, to a lesser extent, cement—10–15%.

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Mechanical and Durability Properties of Recycled Aggregate ...

Nov 28, 2017  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 ...

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Properties of Concrete Containing Recycled Aggregates Lab ...

Coordinator Properties of concrete containing recycled aggregates Introduction To there has been an increasing interest and demand in aggregates starting from the industrial by products, non traditional sources, and the recycled demolition and construction wastes.

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Mechanical and Durability Properties of Concrete ...

Jun 27, 2021  This study examines the mechanical and durability properties of five different concrete mixes using the construction and demolition waste as partial replacement of coarse aggregate. In the concrete mixes, a constant water–cement (w/c) ratio of 0.43 was used. In contrast, the natural coarse aggregates were replaced by recycled coarse aggregate using five different replacement

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Properties of Pervious Concrete Incorporating Recycled ...

Berry, Suozzo, Anderson and Dewoolkar – Using Recycled Concrete in Pervious Concrete Pavements Page 1 of 16 1 Properties of Pervious Concrete Incorporating Recycled Concrete Aggregate 2 3 Bradford M. Berry 4 Undergraduate Research Assistant 5 School of Engineering 6 The University of Vermont 7 116 Votey Hall, 33 Colchester Ave.

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