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Structural Engineering and Mechanics Volume 65, Number 3, February10 2018 , pages 343-348 DOI: https://doi.org/10.12989/sem.2018.65.3.343 |
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Mechanical behavior of recycled fine aggregate concrete after high temperature |
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Jiong-Feng Liang, En Wang, Chun-Feng He and Peng Hu
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| Abstract | ||
| This paper reports mechanical behavior of recycled fine aggregate concretes after high temperatures. It is found that compressive strength of recycled fine aggregate concretes decline significantly as the temperature rises. The elastic modulus of recycled fine aggregate concretes decreases with the increase in temperature, and the decrease is much quicker than the decrease in compressive strength. The split tensile strength of recycled fine aggregate concrete decrease as the temperature rises. Through the regression analysis, the relationship of the mechanical behavior with temperature are proposed, including the compressive behavior, elastic modulus and split tensile strength, which are fitting the test data. | ||
| Key Words | ||
| compressive behavior; split tensile strength; elevated temperature; elastic modulus; recycled fine concrete aggregate | ||
| Address | ||
| Jiong-Feng Liang: 1) State Key Laboratory Breeding Base of Nuclear Resources and Environment, East China Institute of Technology, 418 Guanglan Road, Nanchang, P.R.China 2) Faculty of Civil & Architecture Engineering, East China Institute of Technology, 418 Guanglan Road, Nanchang, P.R.China En Wang, Chun-Feng He and Peng Hu: Faculty of Civil & Architecture Engineering, East China Institute of Technology, 418 Guanglan Road, Nanchang, P.R.China | ||