effect of using recycled concrete as coarse aggregate on

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Effect of Using Recycled Concrete as Coarse Aggregate on ...

recycled coarse aggregates, strength properties of concrete are decreased to some extent. The basic aim of this research was to investigate the effect of using recycled concrete pieces as coarse aggregate on flexural and tensile strength of concrete. The investigation was carried out by carrying

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Effect of Using Recycled Concrete as Coarse Aggregate on ...

The basic aim of this research was to investigate the effect of using recycled concrete pieces as coarse aggregate on flexural and tensile strength of concrete.

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Effect of Recycled Coarse Aggregate Type on Concrete ...

May 13, 2014  Using multilinear correlation analysis, the influences of these aggregate characteristics and other parameters on the properties of recycled aggregate concrete were evaluated. The results showed that the performance of the concrete containing each type of RA was largely influenced by the aggregate nature and quality, in addition to attached ...

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Effect of recycled coarse aggregate on concrete ...

10%  Jun 22, 2011  The skeleton effect of coarse aggregate increases with the increasing strength of coarse aggregate, and normal coarse aggregate plays the highest, whereas the lowest concrete strength occurs when using the weak recycled coarse aggregate. There is a linear relationship between the concrete strength and the corresponding mortar matrix strength.

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Effects of using recycled concrete aggregates on the ...

Jul 15, 2016  In comparison with coarse recycled concrete aggregates, natural aggregates have a higher density and lower water-absorption capacity, a fact which has been reported in several studies,,.

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Effect of Recycled Coarse Aggregate Type on Concrete ...

May 13, 2014  Using multilinear correlation analysis, the influences of these aggregate characteristics and other parameters on the properties of recycled aggregate concrete were evaluated. The results showed that the performance of the concrete containing each type of RA was largely influenced by the aggregate nature and quality, in addition to attached ...

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Effects of using recycled concrete aggregates on the ...

Jul 15, 2016  In comparison with coarse recycled concrete aggregates, natural aggregates have a higher density and lower water-absorption capacity, a fact which has been reported in several studies , , . However, it has been found that when the quality of the original concrete increased, the physical properties of the RCA also improved [8] , [41] , [42] .

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Effect of Recycled Coarse Aggregate on Concrete Properties ...

6. The percentage from Recycled coarse Aggregate that can be used in concrete is maximum 35% replacement of Recycled coarse Aggregate. References: Anonymous. 2008. Use of Recycled Aggregate in Construction. Cement Concrete and Aggregate Australia. Akbari, Y.V., Arora, N.K., Vakil, M.D. 2011. Effect on Recycled Aggregate on Concrete Properties.

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Effect of Use of Recycled Coarse Aggregate in Concrete ...

Effect of Use of Recycled Coarse Aggregate in Concrete. A comparative analysis of the experimental results of the properties of Natural Aggregate Concrete and different replacement ratios of natural aggregates with recycled coarse aggregates is presented in the paper. Recycled aggregate was made by crushing the waste concrete of laboratory test ...

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The effect of using recycled aggregates on reinforced ...

The effect of using recycled aggregates on reinforced concrete columns exposed to an axial compressive force. ... 1.62%) and the replacing ratios of natural coarse aggregate NA by recycled concrete coarse aggregate RA as following (0%, 10%, 20%, 30%, 40%, 50%, 60%), The values of the maximum axial load on compression for columns were measured ...

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The combined effect of using recycled coarse aggregate and ...

Jul 27, 2019  The reuse of materials from destroyed structures as recycled aggregate for concrete has become an important issue, especially in Iraq’s Mosul City following the war of 2017. Many water types which are unacceptable for drinking, such as the well water available in Mosul, may be used in concrete, avoiding the need to use precious potable water. In this study, the effects of non-potable well ...

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EFFECT OF RECYCLED CONCRETE AGGREGATE QUALITY ON ...

Jul 14, 2020  The natural coarse limestone aggregate was 100% replaced with coarse LRCA and HRCA. As a result of the study, the use of 100% HRCA and %100 LRCA instead of limestone coarse aggregate in the concrete adversely affected its mechanical and physical properties.

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Recycled concrete as fine and coarse aggregates in ...

The effects of using crushed concrete as coarse and fine aggregates upon strength and deformation of concrete are reported. The properties of recycled aggregates differ from those of natural aggregates due to the presence of a considerable proportion of mortar attached natural aggregate and loose mortar. For a medium strength concrete, the ...

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Effects of Recycled Aggregate on Concrete Mix and Exposure ...

Jun 25, 2019  The unit weight of the concrete ranged from 2365 to 2175 kg/m 3, depending on aggregate content (Figure 6).Increasing the recycled aggregate content reduces the unit weight and density of the concrete, resulting in lighter concrete (Figure 6).The unit weights of the 15%, 20%, and 25% mixes were reduced by 8%, 11%, and 11.5%, respectively, compared to plain concrete.

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(PDF) Recycled Glass Concrete: Coarse and Fine Aggregates ...

In summary, recycled waste glass can be incorporated [20] Meyer, C. and Baxter, S., “Use of Recycled Glass and Fly Ash for Precast Concrete”, Final Report 98-18, New York State Energy into concrete as fine aggregates, up to 100% replacement Research and Development Authority, Albany, NY, October 1998. ratio, without deleterious effect on ...

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Use Of Recycled Aggregate In Concrete – IJERT

Jan 30, 2013  Advantages of recycling of construction materials -: Used for construction of precast cast in situ gutters kerbs. Cost saving: – There are no detrimental effects on concrete it is expected that the increase in the cost of cement could be offset by the lower cost of Recycled Concrete Aggregate (RCA).

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Effect of recycled coarse aggregate on physical and ...

Oct 16, 2020  In this paper, the effect of using recycled coarse aggregate (RCA) on the behavior of concrete is experimentally studied. The RCA is prepared by crushing and sieving of waste of standard compression test cubes having a compressive strength ranging between 25 MPa and 30 MPa.

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Effect of Aggregate Shape Properties on Performance of ...

The aggregate gradation of AC14 was prepared using granite aggregates crushed via compression and impact crushers. ... A Factorial Design Approach to Analyse the Effect of Coarse Recycled Concrete ...

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Iraqi Academic Scientific Journals - IASJ

effect of using recycled concrete aggregate on behavior of r.c corbels cast with self-compacting concrete (experimental and analytical study) Emadaldeen A. Sulaiman , Jamal A. Khudair KUFA JOURNAL OF ENGINEERING, 2020, Volume 11, Issue 1, Pages 1-21

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(PDF) Effects of using recycled concrete as aggregate on ...

The effect of using concret,e fine aggregate on the modulus and shrinkage is less than those produced by the use of concrete coarse aggregate. The strength of recycled aggregate concrete can be recovered by making suitable mix alljustments or by the addition of fly ash or silica fume.

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Effect of Use Recycled Coarse Aggregate on the Behavior of ...

Oct 07, 2019  Recycled concrete aggregate. The main objective of this study is to investigate the behavior of reinforced concrete columns constructed from various amount of recycled coarse aggregate to aid the understanding about the behavior of such sustainable material in terms of hardened concrete. Also, the effect of the use of

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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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Effect of recycled concrete aggregates on strength and ...

structures creates significant demands for coarse 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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Effects of Using Seawater and Recycled Coarse Aggregates ...

Using seawater and/or recycled coarse aggregates (RCA) for concrete mixing is deemed advantageous from a sustainability perspective. This paper reports on the results of an experimental study on fresh and hardened properties of concrete mixed with seawater and RCA. Three concrete mixtures were investigated, namely, Mix A (traditional concrete),

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Effect of Recycled Plastic Aggregates on Concrete

the use or recycled plastics as replacement of coarse aggregates in concrete. The main aim of the study is to investigate the change in mechanical properties of concrete with the addition of plastics in concrete. Along with the mechanical properties, thermal characteristics of the resultant concrete

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Recycled concrete as fine and coarse aggregates in ...

The effects of using crushed concrete as coarse and fine aggregates upon strength and deformation of concrete are reported. The properties of recycled aggregates differ from those of natural aggregates due to the presence of a considerable proportion of mortar attached natural aggregate and loose mortar. For a medium strength concrete, the ...

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Effect of Fly Ash and Recycled Coarse Aggregate in Concrete

Effect of Fly Ash and Recycled Coarse Aggregate in Concrete International Journal of Constructive Research in Civil Engineering (IJCRCE) Page 15 Table2. Coarse Aggregate S.No Parameters Value 1 Specific Gravity 2.71 2 Water Absorption 0.6% 2.3. Cement The

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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.

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Strength and Durability Evaluation of Recycled Aggregate ...

May 14, 2015  Influence of recycled concrete aggregate on concrete durability. Paper presented at the National Laboratory of Civil Engineering, Portugal. Gupta, Y. P. (2009). Use of recycled aggregate in concrete construction: A need for sustainable environment. Paper presented at the our world in concrete and structures, Singapore. Hansen, T. C. (1986).

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Effect of Using Recycled Lightweight Aggregate on the ...

lightweight aggregate content. This increased by up to 72% for the 100% coarse aggregate replacement in comparison with the reference mix (see Figure 2 and Table 3). Using recycled lightweight concrete as a coarse and fine aggregate in the total replacement of natural aggregate results in a concrete mix with a compressive strength

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Effect of recycled coarse aggregate on physical and ...

Oct 16, 2020  In this paper, the effect of using recycled coarse aggregate (RCA) on the behavior of concrete is experimentally studied. The RCA is prepared by crushing and sieving of waste of standard compression test cubes having a compressive strength ranging between 25 MPa and 30 MPa.

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The effect of coarse crushed concrete aggregate on the ...

The use of crushed concrete aggregates (CCA) (formerly referred to as recycled concrete aggregate (RCA)) is increasing, particularly for low-grade applications, where quality is of less importance. In higher value applications, such as structural concrete, further research has been required to understand the effect of coarse CCAs on the mechanical properties and durability performance. This ...

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Effect of recycled coarse aggregate on the properties of ...

The effect of recycled coarse aggregate (RCA) on the fresh and hardened properties of C40 self-compacting concrete (SCC) was investigated in this paper. The slump, T 500 (the time needed for SCC to spread into a round configuration with a nominal diameter of 500 mm), the slump flow and the flow time of fresh C40 SCC as well as the compressive ...

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