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recycled concrete aggregate and concrete compressive strength

THE ESTIMATION OF COMPRESSIVE STRENGTH OF …

THE ESTIMATION OF COMPRESSIVE STRENGTH OF …

2016-5-23 · Recycled concrete aggregate beam with 0% NAC, 50 % RAC, and 100 % RAC with three different reinforcement ratios (0.28, 1.46, and 2.54 %) were casted and tested. Modulus of elasticity of RAC test result shows slightly lower ... concrete shows same compressive strength and workability for 50 % RAC. For 100% RAC with high cement content

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Mechanical Properties Of Recycled Aggregates Concrete

Mechanical Properties Of Recycled Aggregates Concrete

concrete with recycled coarse aggregate (SBR-2a specimen), the maximum compressive stress value is 31.11 MPa and deformation is 0.0014 mm, as shown in Figure 3.3. Therefore, the compressive test of normal concrete is higher than the compressive test of self-

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Use of RECYCLED AGGREGATES In CONCRETE

Use of RECYCLED AGGREGATES In CONCRETE

Recycled concrete aggregate concrete can still be considered as a rigid pavement material when its flexural strength is improved adequately to sustain future traffic loads. In this study, polyvinyl alcohol (PVA), a water-soluble polymer, was used to improve the flexural strength of RCA concrete.

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Recycled Concrete as Aggregate for Structural Concrete …

Recycled Concrete as Aggregate for Structural Concrete …

aggregate by recycled concrete aggregate in the production of concrete on the compressive strength of concrete. Two sets of concrete mixtures of ratios 1:3:6, 1:2:4, 1:11/ 2:3, 1:1:2 by mass were cast using natural aggregates and recycled aggregates1

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Compressive Strength of Concrete Using Recycled …

Compressive Strength of Concrete Using Recycled …

 · This paper discusses the suitability of producing concrete with 100 % recycled aggregate to meet durability and strength requirements for different applications. Aggregate strength, gradation, absorption, specific gravity, shape and texture are some of the physical and mechanical characteristics that contribute to the strength and durability of concrete.

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Internal Curing Effect and Compressive Strength …

Internal Curing Effect and Compressive Strength …

The scope of this investigation included an examination of the main factors of RA that influence the modulus of elasticity of concrete and a statistical analysis of data available in the literature, which enabled establishing a relationship between the modulus of elasticity and compressive strength of recycled aggregate concrete and ...

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The Effects of Recycled Aggregates on Compressive …

The Effects of Recycled Aggregates on Compressive …

The effectiveness of internal curing of high-strength self-consolidating concrete (SCC) using saturated recycled-concrete aggregates is examined in this study. Tests were performed on SCC using natural rock aggregate (NR-SCC) and recycled-concrete aggregate (RC-SCC). Fresh concrete tests included slump-flow, slump-flow with a J-ring, and L-box ...

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Compressive Strength of Concrete with Recycled …

Compressive Strength of Concrete with Recycled …

This paper presents a proposed uniaxial damaged plastic constitutive relation of recycled aggregate concrete (RAC) based on the experimental studies. A total of five groups of RAC specimens with different recycled coarse aggregate (RCA) replacement percentages of 0, 25%, 50%, 75%, and 100%, respectively, are tested under both monotonic loading and cyclic loading.

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Modulus of elasticity of recycled aggregate concrete ...

Modulus of elasticity of recycled aggregate concrete ...

2015-2-18 · te compressive strength, as well as the methods of crushing of recycled aggregate [2,9]. 2.6. Presence of harmful substances Harmful substances, which may be present in recycled aggregate, are a consequence of harmful ... Mirjana Malešev, et al., Properties of recycled aggregate concrete

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PROPERTIES OF RECYCLED AGGREGATE CONCRETE

PROPERTIES OF RECYCLED AGGREGATE CONCRETE

2016-10-13 · concrete aggregate was increased, the compressive strength properties were reduced. According to Tavakoliand Soroushian[1996], the effect of recycled coarse aggregate content on the original concrete strength properties depends upon different factors like the ratio between fine aggregate to …

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The Effects of Recycled Aggregates on Compressive …

The Effects of Recycled Aggregates on Compressive …

Variations between concrete types result from differences in aggregate quality, aggregate size and texture, concrete compressive strength, and uniformity . Therefore, there is a need to investigate the effect of the origin of the recycled concrete aggregate on the

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Towards Better Understanding of Concrete Containing …

Towards Better Understanding of Concrete Containing …

2013-9-9 · ABSTRACT: Compressive strength is the basic mechanical properties and one of the indicators to determine the performance of a concrete. In this paper, the effects of various percentages (0%, 25%, 50%, 75%, 100%) of Recycled Aggregate (RA) on compressive strength of Recycled Aggregate Concrete (RAC) were investigated. RA is used to

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Experimental Study of Compressive Strength of Recycled …

Experimental Study of Compressive Strength of Recycled …

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 ...

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Effects of Recycled Concrete Aggregates on the …

Effects of Recycled Concrete Aggregates on the …

High strength concrete (HSC) is a topic that has been gaining interest over the years [].The applications of HSC increased within the last few decades, in which HSC was used in high rise buildings. Kou and Poon [] evaluated the mechanical properties of RA made from parent concrete (PC) that had the 28 days compressive strength ranging between 30–100 MPa.

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Study on Compressive Strength of Recycled Aggregate Concrete

Study on Compressive Strength of Recycled Aggregate Concrete

The ANN model, run in a Matlab platform, was used to predict the compressive strength of the recycled aggregate concrete. The results show that ANN has good potential to be used as a tool for predicting the compressive strength of recycled aggregate concrete prepared with varying types and sources of recycled aggregates.

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