Study on Mechanical Behavior of Concrete by Temperature and Steel Fiber Content

Abstract:

Temperature and steel fiber content have a great influence on the mechanical behavior of concrete, so it is urgent to study the mechanical properties of concrete at different temperatures and steel fiber content. The effects of temperature and steel fiber content on the mechanical properties of concrete are studied in this paper. Based on the uniaxial compression testing machine, the uniaxial compression tests of concrete under different temperatures (150°C, 300°C, 450°C) and different steel fiber content (0%, 1%, 2%, 3%) are carried out. With the increase of temperature, the compressive strength of concrete first increases and then decreases, which indicates that there is a critical temperature for the influence of temperature on the compressive strength of concrete. In addition, the addition of steel fiber content significantly improves the compressive strength of concrete. In addition, temperature and steel fiber content significantly affect the peak strain of concrete. Based on the SEM test results, the temperature effect of concrete was investigated from the microscopic perspective.

• Periodical: Key Engineering Materials (Volume 1005)
• Pages: 87-94
• DOI: https://doi.org/10.4028/p-2Xrczg
• Online since: December 2024
• Authors: Xiao Chun Zhao, Xian Peng Wang*, Hao Xuan Yu, S. N. Kovshar
• Keywords: Amorphosis, Steel Fiber Content, Strength, Temperature

References

[1] Li Longzi, Cao Xincheng, Ye Guolin, et al. Study on workability, mechanical properties and flexural toughness of hybrid fiber reinforced concrete[J/OL]. Concrete and cement products:1-4[2023-12-18].

[2] Shen Lei, Wu Jie, Deng Tongfa, et al. Mesoscopic discrete mechanics model of fine polypropylene fiber reinforced concrete and its negative effect mechanism of type I. fracture strength[J/OL]. Engineering Mechanics:1-8[2023-12-18].

[3] Yan Lanlan, Wang Caisen, Liang Jiongfeng, et al. Study on stress-strain curve of recycled concrete after high temperature[J]. Concrete,2023(08):29-31+37.

[4] XIANG Lisheng,WANG Kegang. Research and application of steel fiber reinforced concrete in wear-resistant ground in severe cold areas[J]. China Petroleum and Chemical Industry Standards and Quality,2012,33(11):235-236.)

[5] Zhu Ming, Gong Nengping, Mu Chaomin, et al. Research on dynamic and static mechanical properties of steel fiber self-compacting concrete after high temperature[J].Bulletin of the Chinese Ceramic Society,2023,42(11):3895-3905

[6] Fu Shijian. Research on fire resistance of polypropylene and steel fiber reinforced concrete[J].Journal of Guizhou University(Natural Science Edition),2023,40(05):80-86

[7] Guo Yinchuan, Xie Bo, Zhou Lichao, et al. Research on impermeability attenuation and mechanism of basalt fiber reinforced concrete under dynamic fatigue load[J].Bulletin of the Chinese Ceramic Corporation,2022,41(03):810-817

[8] Xianpeng wang, Mingkun Wei, Kovshar S.N et al. Effect of fiber type and volume fraction on the mechanical properties of structural concrete, 06 March 2023, PREPRINT (Version 1) available at Research Square [

[9] X. Wang, H. Yu, E. Sadovskaya, S. Kovshar, S. Leonovich COMPARATIVE STUDY ON THE APPLICABILITY OF NON-METALLIC NANOFIBERS AND REED FIBERS IN CONCRETE // Вестник Полоцкого государственного университета. Серия F. Строительство. Прикладные науки. 2024. №1.

DOI: 10.52928/2070-1683-2024-36-1-14-20

[10] Zhang P, Wang C, Gao Z, et al. A review on fracture properties of steel fiber reinforced concrete[J]. Journal of Building Engineering, 2023, 67: 105975.

DOI: 10.1016/j.jobe.2023.105975

[11] Yoo D Y, Banthia N, Yoon Y S. Recent development of innovative steel fibers for ultra-high-performance concrete (UHPC): A critical review[J]. Cement and Concrete Composites, 2023: 105359

DOI: 10.1016/j.cemconcomp.2023.105359

[12] Mohamed A M, Tayeh B A, Aisheh Y I A, et al. Exploring the performance of steel fiber reinforced lightweight concrete: A case study review[J]. Case Studies in Construction Materials, 2023, 18: e01968.

DOI: 10.1016/j.cscm.2023.e01968

[13] Zhang P, Wang C, Gao Z, et al. A review on fracture properties of steel fiber reinforced concrete[J]. Journal of Building Engineering, 2023, 67: 105975.

DOI: 10.1016/j.jobe.2023.105975

[14] Liew K M, Akbar A. The recent progress of recycled steel fiber reinforced concrete[J]. Construction and Building Materials, 2020, 232: 117232.

DOI: 10.1016/j.conbuildmat.2019.117232