Performance of Steel Fiber Reinforced Concrete under Different Cooling Methods at High Temperature
DOI:
https://doi.org/10.15282/construction.v4i1.10524Keywords:
Steel fiber reinforced concrete, high temperature, cooling mode, split pull, mechanical propertyAbstract
To explore the tensile properties of steel fiber reinforced concrete under different cooling methods after high temperatures, this paper considers steel fiber reinforced concrete after five different temperatures, under natural cooling and rapid water cooling, conducting split-tension mechanical property studies. The failure form and splitting peak stress of steel fiber reinforced concrete under different working conditions are obtained by experiments, comparative analysis of cooling methods, influence of high temperature and steel fiber content on tensile properties of concrete splitting, the main conclusions are as follows: as the temperature rises, the failure pattern of steel fiber reinforced concrete developed from one main penetrating crack to several cracks on the specimen surface; the addition of steel fiber can effectively improve the plastic characteristics of concrete, the apparent cracks in the concrete also increase. As the temperature rises, the peak tensile stress of steel fiber reinforced concrete decreases gradually, the increase in temperature leads to some extent to a greater influence of steel fiber on the mechanical properties of concrete splitting; as the steel fiber dosage increases, significant increase in concrete splitting mechanical properties, concrete splitting peak stress after high temperature is relatively high. The peak stress of concrete splitting under natural cooling is lower than that under rapid water cooling. At the same time, mathematical modeling of the effect of steel fiber admixture and high temperature on the peak splitting tensile stress of concrete under two cooling methods is derived, and the force mechanism is discussed and analyzed. The results of the study provide a theoretical basis for the analysis and calculation of steel fiber concrete structures after fire.
References
X. C. Fan, X. Z. Xu, and L. F. Xiong, “Test and finite element analysis of short eccentric compression columns made of basalt reinforcement mixed with steel fiber concrete,” Concrete, vol. 8, pp. 6-10, 2021.
Z. B. He, and H. B. Wang, “Fatigue performance analysis of steel fiber concrete beams incorporating homogenisation theory,” Silicate Bulletin, vol. 8, pp. 2574-2583, 2021.
M. K. Kazberuk and M. Grzywa, “Recycled aggregate concrete as material for reinforced concrete structures,” Journal of Sustainable Architecture and Civil Engineering, vol. 7, no. 2, pp. 60-66, 2014.
N. V. Ramana, “Performance of crimped steel fiber-reinforced recycled aggregate concrete,” International Journal of Advanced Technology in Engineering and Science, vol. 4, pp. 152-159, 2016.
X. Y. Zhang, F. Z. Wang, and R. Li, “Experimental study on ultra-early strength steel fiber concrete under high temperature steam curing,” Concrete, vol. 8, pp. 156-160, 2019.
Z. Li, J. Xu, and E. Bai, “Static and dynamic mechanical properties of concrete after high temperature exposure,” Materials Science & Engineering A, vol. 5, pp. 27-32, 2012.
Y. Xu, and Z. S. Xu, “Experimental study on strength of concrete under high temperature,” Concrete, vol. 2, pp. 44-45, 2000.
H. L. Wang, Q. J. Yu, X. Y. Sun, et al. Evaluation of concrete damage and durability performance after high temperature action. Journal of Jiangsu University, vol. 35, no. 2, pp. 238-242, 2014.
C. Chen, “Experimental research on fire resistance of reinforced concrete members based on damage mechanics,” Master's Thesis, China: Central South University of Forestry and Technology, 2013.
G. A. Khoury, “Strain of heated concrete during two thermal cycles. Part 1: Strain over two cycles, during first heating and at subsequent constant temperature. Magazine of Concrete Research, vol. 6, pp. 367-385, 2006.
S. T. Shuai, “Dynamic splitting performance of steel fiber ceramic aggregate concrete after high temperature,” Master's Thesis. China: Southwest University of Science and Technology, 2023.
Y. F. Liu, “Experimental study on splitting tensile strength of steel fiber ceramic aggregate concrete at high temperature.” Master's Thesis. China: Southwest University of Science and Technology, 2023.
K. Z. Xie, M. J. Zhu, and Z. W. Liu, “Experimental study on mechanical strength of steel fiber mechanism sand concrete after high temperature, Concrete, vol. 5, pp. 1-5, 2022.
O. E. Babalola, P. O. Awoyera, D. H. Lea, and L. M. Bendezú Romer, “A review of residual strength properties of normal and high strength concrete exposed to elevated temperatures: Impact of materials modification on behaviour of concrete composite,” Construction and Building Materials, vol. 4, p. 123448, 2021.
Y. Wang, F. Li, L. Xu, and H. Zhao, “Effect of elevated temperatures and cooling methods on strength of concrete made with coarse and fine recycled concrete aggregates,” Construction & Building Materials, vol. 20, pp. 540-547, 2019.
F. P. Jia, Y. C. Wang, Y. Y. Qu, Y. Cheng, and P. Y. Cao, “Effect of cooling method and standing time on residual strength of concrete after high temperature,” Journal of Building Materials, vol. 3, pp. 400-405, 2011.
N. D. Yi, Cecília Azevedo, J. B. Aguiar, and Said Jalali, “Study on residual behaviour and flexural toughness of fiber cocktail reinforced self-compacting high-performance concrete after exposure to high temperature, Construction & Building Materials, vol. 1, pp. 21-31, 2012.
J. Yang, and G. F. Peng, “Influence of steel fiber type on high temperature cracking performance of ultra high-performance concrete,” Journal of Composite Materials, vol. 6, pp. 1599-1608, 2018.
Z. X. Niu, “Experimental study on mechanical properties of plain concrete after high temperature,” Master's Thesis. China: Anhui University of Science & Technology, 2020.
H. K. Qu, L. C. Zhou, L. Wang et al., “Research on the performance of high temperature concrete under different cooling methods,” New Building Materials, vol. 8, pp. 119-122, 2017.
F. Wang, Y. J. Qian, J. J. Xu, and Z. Y. Li, “Study on dynamic constitutive model of concrete damage after high temperature action,” Journal of Southwest Jiaotong University, vol. 6, pp. 1075-1081, 2017.
T. Tang, and H. Saadatmanesh, “Behavior of concrete beams strengthened with fiber-reinforced polymer laminates under impact loading,” ASCE Journal of Composites for Construction, vol. 3, pp. 209-218, 2003.
H. G. Chen, Y. F. Liu, B. Sun, M. Wang, and B. J. Cheng, “Effect of steel fiber admixture on mechanical properties of concrete at high temperature,” Journal of Chongqing Jiaotong University (Natural Science Edition), vol. 4, pp. 552-554+635, 2010.
L. Jin, R. Zhang, G. Dou et al., “Fire resistance of steel fiber reinforced concrete beams after low-velocity impact loading,” Fire Safety Journal, vol. 98, pp. 24-37, 2018.
F. Hamidi, H. Carré, A. E. A. Hamami et al., “Critical review of the use of fiber-reinforced concrete against spalling,” Fire Safety Journal, vol. 141, p. 103988, 2023.
A. M. Abubaker, and C. T. Davie, “Effects of restraint and test configuration on thermo-mechanical stress states in high temperature laboratory tests for spalling in concrete,” Fire Safety Journal, vol. 141, pp. 103990, 2023.
M. Wydra, P. Turkowski, P. Dolny, G. Sadowski, N. Grochowska, P. P. Michalski, et al., “Basalt fiber reinforced polymer bars as main reinforcement of axially compressed concrete column-experiment and numerical considerations of fire resistance,” Fire Safety Journal, vol. 140, p. 103898, 2023.
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