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Effect of recycled concrete aggregates on strength and

Effect of recycled concrete aggregates on strength and

Effect of recycled concrete aggregates on strength and ...

This paper investigates the effect of recycled con-crete aggregate (RCA) on the rate of concrete compressive strength and stiffness gain with time and on the

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The effect of recycled concrete aggregate properties on ...

Oct 01, 2011  The strength-based mixtures were developed for two reasons: (1) to determine whether RCA mix proportions could be developed to obtain similar compressive strength

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Strength and Durability Evaluation of Recycled Aggregate ...

May 14, 2015  This paper discusses the suitability of producing concrete with 100 % recycled aggregate to meet durability and strength requirements for different applications.

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Effect of recycled aggregates and treated wastewater on ...

Jan 10, 2021  Almost all research on recycled aggregate concrete (RAC) has shown that the mortar adhered to recycled aggregates during crushing of old concrete leads to

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EFFECT OF RECYCLED CONCRETE AGGREGATE QUALITY ON ...

Jul 14, 2020  The objective of this study is to investigate the effect of recycled concrete aggregate (RCA) quality on the properties of hardened concrete properties such as

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Effect of recycled coarse aggregate on concrete ...

Jun 22, 2011  The effect of recycled coarse aggregate on concrete compressive strength was investigated based on the concrete skeleton theory. For this purpose, 30 mix

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Effect of recycled concrete aggregates on strength and ...

Prince, M. J.- R., and B. Singh. 2015. “Bond Strength of Deformed Steel Bars in High-Strength Recycled Aggregate Concrete.” Materials and Structures 48 (12): 3913–3928. Butler, L., J. S. West, and S. L. Tighe. 2011. “The Effect of Recycled Concrete Aggregate Properties on the Bond Strength between RCA Concrete and Steel Reinforcement.”

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The effect of recycled concrete aggregate properties on ...

Oct 01, 2011  The strength-based mixtures were developed for two reasons: (1) to determine whether RCA mix proportions could be developed to obtain similar compressive strength and workability to that of natural aggregate concrete and (2), to determine the effect that natural aggregate replacement with RCA has on splitting tensile and bond strength.

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Effect of fine recycled aggregate on the strength and ...

May 19, 2021  To overcome the scarcity of river sand and dumping of construction and demolition wastes, the fine recycled aggregate (FRA) collected from CD wastes is being utilized as a replacement to river sand. Many earlier studies reported that the higher water absorption of fine recycled aggregate and weak interfacial transition zone (ITZ) resulted in the development of the concrete with less strength ...

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Effect of Mixed Recycled Aggregate on the Mechanical ...

Mixed recycled aggregate (MRA) is a kind of recycled aggregate containing discarded bricks and other impurities that is inferior to ordinary recycled concrete aggregate. To study the effect of MRA in concrete, specimens with 100% MRA under different water-cement ratios (W/C) of 0.50, 0.42, 0.36 and

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Strength and Durability Evaluation of Recycled Aggregate ...

May 14, 2015  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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EFFECT OF RECYCLED CONCRETE AGGREGATE QUALITY ON ...

Jul 14, 2020  The objective of this study is to investigate the effect of recycled concrete aggregate (RCA) quality on the properties of hardened concrete properties such as compressive strength, splitting tensile strength, density, water absorption capacity and porosity accessible to water. The RCA used in this study was obtained from the crushing of waste ...

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Effect of the Aggregate Size on Strength Properties of ...

Mar 20, 2018  The study on preparation technology of recycled concrete with economical and technical feasibility has gained more serious attention in each country due to its involvement and effect on the environment protection and the sustainable development of human society. In this study, we conducted a control variable test to investigate and assess the influence of the aggregate size on the strength ...

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(PDF) Mechanical Properties of Recycled Aggregates From ...

Sep 05, 2021  The outcomes indicate that recycled aggregates caused significant reductions in the attainment of concrete compressive strength (up to 21%) and flexural tensile strength (up to 39%) as aggregates ...

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(PDF) Flexural strength of concrete beams with recycled ...

On the contrary, the concrete compre ssive strength for mixture with 400 kg/m 3. and 450 kg/m 3 decreased with the incr ease in the amount of the recycled aggregates

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EFFECTS OF AGGREGATE TYPE, SIZE, AND CONTENT ON

basalt or crushed limestone, aggregate sizes of 12 mm ('h in.) or 19 mm (:Y. in.), and ... aggregate size. High-strength concrete containing basalt and normal-strength concrete ... while in normal-strength concretes, coarse aggregate strength has little effect on compressive strength. Other research has compared the effects of

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Crystals Free Full-Text Effect of Aggregate Types on ...

For the same concrete quality, different types of coarse aggregates may result in different mechanical properties. This paper presents a study on the effect of aggregate types on the mechanical properties of two concretes, namely, geopolymer concrete (GP) and traditional Portland cement (TC) concrete. The mechanical properties were investigated through several large-scale tests.

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Effect of Aggregate Types on Flexural Strength of Concrete

Cement-Artificial sand-Stone crushed aggregate (CAS- A study on the effect of size of aggregate on the strength and 1:1.90:2.95) and Cement-Artificial sand-Recycled aggregate sorptivity characteristics of cinder based light weight concrete. (CAR- 1:1.90:2.78).

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Effect of Fly Ash on Rheology and Strength of Recycled ...

Apr 30, 2013  Strength test results showed that recycled aggregate tended to decrease compressive and tensile strength of concrete, when recycled aggregate was used as a coarse aggregate. Using over 30% recycled aggregate caused significant decreases in compressive and tensile strength.

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Effects of Aggregate Properties on Concrete - Size, Grading

May 02, 2017  Variation in the size of Aggregates changes the water demand, cement content, micro-cracking (strength) in concrete. It also effects pumpability, and durability of concrete. Grading of aggregates depends on the proportions of coarse and fine aggregate. If grading of aggregate is varied, it also changes cement paste content (cost economy), workability of the mix,

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Effect of recycled concrete aggregates on strength and ...

Prince, M. J.- R., and B. Singh. 2015. “Bond Strength of Deformed Steel Bars in High-Strength Recycled Aggregate Concrete.” Materials and Structures 48 (12): 3913–3928. Butler, L., J. S. West, and S. L. Tighe. 2011. “The Effect of Recycled Concrete Aggregate Properties on the Bond Strength between RCA Concrete and Steel Reinforcement.”

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EFFECT OF RECYCLED CONCRETE AGGREGATES ON THE

EFFECT OF RECYCLED CONCRETE AGGREGATES ON THE LONG-TERM, ELASTIC, TOTAL DEFLECTION AND STRENGTH OF PRECAST PRESTRESSED HOLLOW CORE CONCRETE SLABS by LIZETH MARISOL GOMEZ SANTANA A thesis submitted in partial fulfillment of the requirements for the degree of Master of Science in Civil Engineering Department of Civil Engineering

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Effect of fine recycled aggregate on the strength and ...

May 19, 2021  To overcome the scarcity of river sand and dumping of construction and demolition wastes, the fine recycled aggregate (FRA) collected from CD wastes is being utilized as a replacement to river sand. Many earlier studies reported that the higher water absorption of fine recycled aggregate and weak interfacial transition zone (ITZ) resulted in the development of the concrete with less strength ...

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Effects of using recycled concrete aggregates on the ...

Jul 15, 2016  Over the past twenty years the use of Recycled Concrete Aggregate (RCA) has been mostly limited to normal-strength concretes. However, satisfactory properties have been found in previous studies dealing with the use of RCA sourced from medium to high strength concrete in the production of High Performance Concrete (HPC).

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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 on concrete ...

Jun 22, 2011  The effect of recycled coarse aggregate on concrete compressive strength was investigated based on the concrete skeleton theory. For this purpose, 30 mix proportions of concrete with target cube compressive strength ranging from 20 to 60 MPa were cast with normal coarse aggregate and recycled coarse aggregate from different strength parent concretes. Results of 28-d test show that the strength ...

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Effects of Recycled Concrete Aggregates on the Compressive ...

Apr 04, 2012  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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(PDF) The Effect of Recycled Aggregate Quality on Concrete ...

Using unwashed recycled aggregate in concrete will affect its strength. The effect will be more obvious at lower water/cement ratios. When the recycled aggregate was washed, these negative effects ...

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(PDF) Effects of the fine recycled concrete aggregates on ...

May 18, 2011  In this experimental study, the effects of the recycled fine recycled concrete aggregate (FRA) that was manufactured from concrete wastes on the concrete properties were investigated. In concrete ...

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(PDF) Mechanical Properties of Recycled Aggregates From ...

Sep 05, 2021  The outcomes indicate that recycled aggregates caused significant reductions in the attainment of concrete compressive strength (up to 21%) and flexural tensile strength (up to 39%) as aggregates ...

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Effect Of Physical Properties Of Recycled Aggregate On The ...

Apr 23, 2013  Effect Of Physical Properties Of Recycled Aggregate On The Strength Of Concrete - written by Ms. Manjushree G. Shinde, Prof. M. R. Vyawahar, Prof. P. O. Modani published on 2013/04/23 download full article with reference data and citations

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The Effect of Fly Ash and Recycled Aggregate on the ...

Apr 13, 2020  However, a previous investigation indicated that compared to the natural aggregate concrete (NAC) with same water to binder ratio (W/B), the recycled aggregate concrete (RAC) obviously degrade in compressive strength, splitting and flexural tensile, modulus of elasticity and frost resistance, while its drying shrinkage, creep, water absorption ...

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Effects of Aggregate Properties on Concrete - Size, Grading

May 02, 2017  Variation in the size of Aggregates changes the water demand, cement content, micro-cracking (strength) in concrete. It also effects pumpability, and durability of concrete. Grading of aggregates depends on the proportions of coarse and fine aggregate. If grading of aggregate is varied, it also changes cement paste content (cost economy), workability of the mix,

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

However, recycled concrete aggregates may adversely impact the mechanical properties of recycled aggregate concrete. It is evident that the reduction of compressive strength of RACs compensates by adjusting the water to cement ratio, changing the procedure of mixing, treating the aggregate, and using a mineral addition .

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