recycled aggregate concrete journals

Properties of recycled concrete aggregate under different ...

However, the strength of new concrete produced using recycled concrete aggregate needs to be evaluated before their use in structures. Many researchers studied the mechanical behavior of recycled concrete coarse aggregates,,,,,,,, .

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Influence of Recycled Concrete Aggregates on Strength ...

recycled aggregate in the concrete mix, the compressive strength decreases. However, there is not so much difference between the compressive strength of normal concrete and 25% recycled aggregate concrete. Fig 2 shows the 28 days compressive strength of concrete with percentage of recycled aggregate concrete.

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Structural Concrete Prepared with Coarse Recycled Concrete ...

An investigation of mechanical behaviour and elastic properties of recycled aggregate concrete (RAC) is presented. RACs were prepared by using a coarse aggregate fraction made of recycled concrete coming from a recycling plant in which rubble from concrete structure demolition is …

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High-Strength Structural Concrete with Recycled Aggregates

concrete with recycled aggregates, as an alternative material to coarse aggregate in structural concrete. The capacity of this project is to decide and balance the ... ment of Recycled Aggregate" Journal of materials in civil engineering November - December 2004. 4."Lightweight Concrete Masonry with Recycled Wood

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Development of a Sustainable Concrete Waste Recycling …

which recycled aggregate concrete is used. As shown in Fig. 2, in order to promote the application of recycled aggregate concrete, it is necessary to secure a suitable balance between 1) safety and quality, 2) cost-effectiveness, and 3) environmental impact. 2.2 Transition of techniques used for recycled aggregate concrete

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Recycled Aggregate Concrete - UGC Approved Journal

Fig 2:- Cost Comparison between conventional and recycled concrete From the above chart it can be inferred that concrete prepared using recycled aggregates are more economical than conventional concrete. Hence recycled aggregate concrete can be …

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Mix Design for Pervious Recycled Aggregate Concrete ...

Permeability of pervious concrete is influenced by the porosity and the use of recycled concrete aggregate had 3.7 Mix Design for Pervious Concrete no significant effect on the permeability of pervious Figure 11 shows the relationships among porosity, concrete. strength and permeability for pervious concrete, developed 5.

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International Research Journal of Engineering and ...

concrete. Many researchers state that recycled aggregates are only suitable for non-structural concrete application. This study shows that the recycled aggregates that are obtained from concrete specimen make good quality concrete. The slump of recycled aggregate concrete is more than the normal concrete.

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EFFECT OF TEMPERATURE ON RECYCLED AGGREGATE …

recycled aggregates to make new concrete (RAC) which is not yet very common in the Nigerian Construction Industry, is obviously one of the tools that will check the escalation in prices of natural aggregates. The use of recycled aggregate in replacing natural aggregate in concrete construction has become popular among researchers.

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Estimate the Compressive and Flexural Strength Test of ...

The main concern of this research is to reuse the demolished concrete as coarse aggregate for building a new structure. For this reason, the compressive strength as well as the flexural strength of natural concrete aggregate was compared with recycled concrete aggregate at different curing period.

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Recycled Aggregates - cement.org

The states that do use recycled concrete aggregate (RCA) in new concrete report that concrete with RCA performs equal to concrete with natural aggregates. Most agencies specify using the material directly in the project that is being reconstructed. Recycling of concrete is a relatively simple process.

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Mechanical and Durability Properties of Induction-Furnace ...

Xu et al. found that replacement rates up to 3%, 30%, and 50% for recycled power, recycled fine aggregate, and recycled coarse aggregate, respectively, could be applied in concrete mixture design without deteriorating concrete strength.

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Buy New Trends in Eco-efficient and Recycled Concrete ...

Sections cover various recycled materials applied in concrete production, present the latest on the lifecycle analysis of recycled aggregate concrete, detail new trends in recycled aggregate concrete research, and finally, present updates on upscaling the use of recycled aggregate concrete and structural reliability.

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International Journal of Engineering Trends and Technology ...

recycled aggregate to 80% recycled aggregate and with more percentage replacement of recycled aggregate used in the concrete specimen, the percentage of tensile strength remained are gradually decreasing. 3. Concrete made with recycled aggregate produced from construction and demolition waste has a compressive strength

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Vol. 2, Issue 3, March 2013 Recycled Plastics as Coarse ...

Recycled Plastics as Coarse Aggregate for Structural Concrete Praveen Mathew1, Shibi Varghese2, Thomas Paul3, Eldho Varghese4 Assistant Professor, Department of Civil Engineering, M. A. college of Engineering, Kothamangalam, Kerala, India1

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International Journal of Engineering Trends and Technology ...

aggregates and greater awareness of environmental protection. Recent technology has also improved the recycling process; this study aims to evaluate physical properties of concrete using recycled coarse aggregate. In this research concrete waste is from demolished structure has …

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Effect of Recycled Coarse Aggregate on Concrete Properties ...

Abstract. This research was conducted with the use of recycled aggregate as modification. In terms of the use of recycled aggregate, the percentage of recycled aggregate should be determined because the strength of concrete would not be obtained by the high percentage of recycled aggregate.The scope of study is about comparison between recycle coarse aggregate and natural aggregate in …

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Structural Behaviour of Composite Members with Recycled ...

review on recycled concrete as an aggregate for concrete, covering the period from 1945 to 1977. A second state-of-the-art report on recycled aggregate and RAC was prepared by Hansen (1992), covering developments between 1978 and 1985. And the third state-of-the-art report was an updated version of the second one including developments in the ...

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Carbon-conditioned recycled aggregate in concrete production

Read "Carbon-conditioned recycled aggregate in concrete production, Journal of Cleaner Production" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips.

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Behaviour of Recycled Aggregate Concrete on exposed to ...

recycled aggregate concrete. The results indicate that concrete with aggregate partially replaced with RCA exhibits good performance under elevated temperatures and it can be considered comparable to conventional concrete. Keywords: Recycled aggregates, elevated temperature, compressive strength, split tensile

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Effect of Association Natural-Recycling Aggregates ...

Mamery Adama Serifou, Olivier Moro Boffoué, Paul Sery Obre Jolissaint, Clement Koffi Kouadio, Edjikémé Emeruwa. Effect of Association Natural-Recycling Aggregates (Crushed Glass and Waste Tire) on Mechanical Properties of the Concrete. International Journal of Materials Science and Applications. Vol.

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Recycled Glass Concrete: Coarse and Fine Aggregates ...

Conventional concrete aggregate consists of sand (fine aggregate) and various sizes and shapes of gravel or stones (coarse aggregate). However, there is a growing interest in substituting alternative aggregate materials, largely as a potential use for recycled materials.

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(PDF) Use of recycled concrete aggregate in concrete: A review

The use of recycled concrete aggregate (RCA) in concrete as partial and full replacements of natural coarse aggregate is growing interest in the construction industry, as it reduces the demand for ...

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Elasticity and Drying Shrinkage Concrete of Recycled-Aggregate

The static and dynamic mod&i of elasticity and drying shrinkage of recycled-aggregate concretes made with coarse recycled aggregate and natural sand were studied as functions of modulus of elasticity and drying shrinkage of the original concretes from which the recycled aggregates …

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Development of construction ... - journals.sagepub.com

The results of the present investigation depict that improvement in early days compressive strength is achieved with the incorporation of nano-silica in addition to the restoration of reduction in compressive strength of recycled aggregate concrete mixes caused owing to the replacement of natural aggregates by recycled aggregates.

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Effect of recycled concrete aggregates on strength and ...

aggregates, such as crushed limestone and gravel, while the demolition of old concrete structures offers significant sourc-es of recycled concrete aggregate (RCA). Currently, RCA use in the United States is largely limited to nonstructural applications, such as road base. Uncertainty and variability

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Recycled Concrete—A Source for New Aggregate

No significant increase in the strength of recycled aggregate concrete was obtained by reducing the W/C ratio below 0.40. It is indicated that the quality of recycled aggregate concrete will improve with the quality of recycled mortar or if the recycled material has a high aggregate-cement ratio.

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Use of RECYCLED AGGREGATES In CONCRETE- A Paradigm Shift

The use of recycled aggregates in concrete prove to be a valuable building materials in technical, environment and economical respect Recycled aggregate posses relatively lower bulk density, crushing and impact values and higher water absorption as compared to natural aggregate.

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REPLACEMENT OF WASTE MATERIAL IN CONCRETE USING RECYCLED ...

Recycled Plastic Aggregate (RPA) in concrete is acceptable there are for the making of concrete used coarse aggregate having size 10mm, natural river sand used for making a concrete and plastic aggregate used in concrete. Test carried out on these aggregate density, and sieve analysis., water absorption, all these test

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Strength, microstructure, and thermal conductivity of the ...

(3) Recycled concrete aggregates: Waste concrete was made into fine aggregate with particle size of less than 3mm through the aggregate crusher in laboratory (Wenzhou construction and demolition waste, China), as shown in S1 Fig. The water absorption of recycled concrete aggregates …

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Efficient Utilization of Recycled Concrete Aggregate in ...

In Singapore, the applications of recycled concrete aggregate (RCA) are limited to nonstructural concrete, road construction, and backfilling. To realize the beneficial use of RCA, an in-depth study was conducted to evaluate its use in structural concrete.

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(PDF) Concrete with Recycled Glass as Fine Aggregates

Lastly, the use of recycled glass [23] or granulated foam glass[24]as aggregates in concrete design can offer greater recycling potentials, however its review is beyond the scope of this paper.[25 ...

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Recycled Aggregate in Concrete - Use of Industrial ...

Concrete is the most used man-made material in the world since its invention. The widespread use of this material has led to continuous developments such as ultra-high strength concrete and self-compacting concrete. Recycled Aggregate in Concrete: Use of Industrial, Construction and Demolition Waste ...

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Self-compacting concrete with recycled aggregate: A ...

to examine the influence of recycled coarse aggregate on the strength and durability properties of self compacting concrete. Figure 1: Structure of recycled aggregate 1.1 Research significance Utilization of recycled aggregate in new concrete production has been increasing gradually due to the environmental and economic considerations.

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Recycled Aggregate Self Compacting Concrete: A Sustainable ...

encourages the use of recycled aggregate in self compacting concrete to create a sustainable solution to warrant the problem of environment protection. In this paper the effect of coarse recycled concrete aggregates on the fresh and mechanical properties of self compacting concrete are investigated.

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Recycled Aggregate Concrete Structures | Jianzhuang Xiao ...

The world's first book on recycled aggregate concrete (RAC) structures Based on the author's ten years of fundamental studies on the material properties and structural behavior of RAC Includes first-hand experimental and simulation results on RAC Includes some typical demonstration structures ...

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RECYCLED AGGREGATE CONCRETE EXPOSED TO ... - ARPN …

Concrete using recycled coarse aggregate from waste concrete is now a popular subject of research. Green concept of construction leads the construction industry to use the materials of low embodied energy and also the materials which reduces the destabilization of environment. Recycled aggregate satisfies both the requirement. Some research ...

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Effect of recycled concrete aggregates on strength and ...

This paper presents an experimental investigation on the use of recycled concrete aggregate (RCA) as a replacement for natural coarse aggregates (such as crushed limestone and gravel) in precast, prestressed concrete structures.

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Mix Design for Pervious Recycled Aggregate Concrete ...

The specific gravity of the natural aggregate was 2.65 and that for recycled concrete aggregate was 2.19 and 2.04 for 20 and 13 mm maximum size recycled concrete aggregate, respectively. The water absorption for 20 and 13 mm recycled concrete aggregates was 5.3 and 8.2 %, respectively, compared to 1.0 % for the natural aggregate.

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"Recycled Coarse Aggregates" RECYCLED COARSE ... - IOAJ

is used for preparing fresh concrete. The amount of recycled coarse aggregate used in this research is approximately 125 kg. Many researchers state that recycled aggregates are only suitable for non-structural concrete application. This research, however, shows that the recycled aggregates that are obtained from concrete specimen make good ...

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