Experiment Research on Basic Mechanic Property of Recycled Concrete with Different Ratio of Recycled Aggregate

Sun, Yue; Xiang, Xiao

doi:10.4028/www.scientific.net/amr.250-253.994

Cited by 3 publications

(3 citation statements)

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“…Guo et al studied the compressive properties of concrete blocks containing recycled aggregate of concrete and they found that the compressive properties of RAC blocks were similar to those of ordinary concrete after incorporating recycled aggregates [18]. Sun and Xiao studied the strength and elastic modulus of RAC at different recycled aggregate dosages and ages of concrete, they found that the strength developing rule of RAC was similar to that of ordinary concrete with age growing, and the strength and modulus of elasticity for RAC decreased with the increase of recycled aggregate dosage [19]. Tabsh and Abdelfatah believed that the compressive strength and splitting tensile strength of RAC depended on the mixing ratio [20].…”

Section: State Of the Artmentioning

confidence: 99%

Mechanical Properties of Recycled Aggregate Concrete Subjected to Compression Test

Zhang¹,

Wang²,

Gao³

2018

JESTR

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To study the basic mechanical properties of recycled aggregate concrete, four sets of cubic standard test-blocks and four sets of prismatic standard test-blocks were prepared for strength test with the variation parameter of replacement ratio of recycled coarse aggregate. The mechanical indices such as cubic compression strength, axial compression strength, Poisson's ratio, and elastic modulus were investigated by the test. Meanwhile, the replacement ratio influence factor was introduced to establish the conversion relationship of the strength indices, as well as the calculation formula of elastic modulus. Results show that the strength trend with the middle large and two ends small can be generally refined with the increase of replacement ratio. The Poisson's ratio and elastic modulus of the recycled aggregate concrete vary less within the allowable range of engineering error. The established conversion relationship of strength indices and the calculation formula of elastic modulus are simple and practical with the large fitting precision. The conclusions obtained in the study are of important reference value to direct similar engineering practice.

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Section: State Of the Artmentioning

confidence: 99%

Mechanical Properties of Recycled Aggregate Concrete Subjected to Compression Test

Zhang¹,

Wang²,

Gao³

2018

JESTR

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“…Sun et al studied the compressive strength and elastic modulus of RAC at different replacement ratios and ages and found that with the development of age, the strength development law of RAC is similar to that of general concrete. With the increase of the replacement ratio of recycled aggregate, the strength and elastic modulus of recycled aggregate concrete show the trend of decline [17]. Tabsh et al carried out tests of mechanical properties with recycled coarse aggregate source and target concrete strength as variable parameters.…”

Section: State Of the Artmentioning

confidence: 99%

Experimental Study on Deformation Performance of Basalt Fiber - Reinforced Recycled Aggregate Concrete

Zhang¹,

Junna²,

Wang³

et al. 2018

JESTR

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To explore the basic deformation performance of basalt fiber-reinforced recycled aggregate concrete (BFRRC), a deformation experiment was conducted on fifteen groups of cubic standard specimens and fifteen groups of prismatic standard specimens. The destruction process and failure mode of the test blocks were observed. The elastic modulus and Poisson's ratio of the test blocks were tested, and then the stress-strain curve under compression was obtained. The influence of the replacement ratio of recycled coarse aggregate and the basalt fiber content on the stress-strain curve, elastic modulus and Poisson's ratio were analyzed, and then the functional expression of the rising section of the stressstrain curve and the theoretical calculation formula of the elastic modulus were established considering the replacement ratio of the recycled coarse aggregate and the basalt fiber content. It is shown that the compressive failure mode of BFRRC is similar to that of ordinary concrete. It was found that the calculated results of stress-strain rising section and elastic modulus of BFRRC were in good agreement with the measured ones. The elastic modulus of BFRRC decreased with the increase of the replacement ratio of recycled coarse aggregate and increased with the increase of fiber content, while the Poisson's ratio was the opposite.

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“…The so-called recycled concrete, is to make the waste concrete block crushed, washed, graded, respectively, to form recycled coarse aggregate and fine aggregate, which can be used as aggregate in concrete [1]. A lot of achievements on the physical and mechanical properties of recycled concrete have been made at home and abroad [2][3][4]. In order to use the recycled concrete in structural engineering, more and more studies on RAC members, structural mechanical properties and hysteretic behavior have been made recently [5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Dynamic Performance of Mid-Rise Recycled Aggregate Concrete Shear Wall on the Shaking Table

Zhang

Cao

Dong

2012

AMM

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To ascertain the dynamic performance of recycled aggregate concrete (RAC) shear walls, four 1/3 scale models, including three mid-rise shear walls with reinforcement ratio 0.25% but different recycled aggregate replacement rate, and one with reinforcement ratio 0.46% and 100% recycled coarse and fine aggregate, were tested on the shaking table. The testing process included elastic, cracking, and failure stage of the models. Dynamic characteristic and dynamic response of models at different stages were studied and the comparison between failure patterns of 4 models was also made. The shaking table test results show that the seismic performance of RAC mid-rise shear wall becomes worse with the increase of the recycled aggregate replacement. And the seismic performance of 100% recycled aggregate concrete shear wall gets a little higher with the increase of the reinforcement ratio.

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Experiment Research on Basic Mechanic Property of Recycled Concrete with Different Ratio of Recycled Aggregate

Cited by 3 publications

References 0 publications

Mechanical Properties of Recycled Aggregate Concrete Subjected to Compression Test

Mechanical Properties of Recycled Aggregate Concrete Subjected to Compression Test

Experimental Study on Deformation Performance of Basalt Fiber - Reinforced Recycled Aggregate Concrete

Experimental Study on Dynamic Performance of Mid-Rise Recycled Aggregate Concrete Shear Wall on the Shaking Table

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