混杂纤维水泥基复合材料弯曲性能试验研究

doi:10.11896/cldb.24040120

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Abstract Hybrid fiber reinforced cementitious composite (HFRCC) was prepared by addition polyethylene (PE) fiber and steel fiber in cement matrix in which the content of PE fiber was a constant of 1%. The flexural properties of HFRCC with different steel fiber size and content were experimentally investigated. The results showed that the incorporation of steel fiber will lead to a transition of failure modes at ultimate state from multi-crack to critical crack, and the critical-crack failure characteristics is more obvious with the increase of steel fiber content. The existence of hybrid fiber will enhance the cracking deflection, flexural strength, and toughness index of HFRCC, however, it will reduce the cracking stress and peak deflection. The flexural strength of HFRCC rises with the increase of steel fiber content and the maximum strength, and it can reach up to the max value of 15.40 MPa, 26.5% higher than that of cementitious material only with PE fiber. The proposed nonlinear regression model for flexural strength prediction has a satisfactory accuracy based on the comparison with experiment data.

Key words： cement-based composite hybrid fiber bending performance steel fiber polyethylene fiber

Published: 25 July 2025 Online: 2025-07-29

CLC number:

TU528

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	Articles by authors
	ZHANG Lei
	JIANG Chao
	ZHU Xuejun
	XIE Qun
	LIU Wensheng
	ZHAO Zhenzhen
	ZHENG Yuanwu
	LI YANG

Cite this article:

ZHANG Lei,JIANG Chao,ZHU Xuejun, et al. Experimental Study on Bending Performance of Hybrid Fiber Reinforced Cementitious Composite[J]. Materials Reports, 2025, 39(14): 24040120-8.

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https://www.mater-rep.com/EN/10.11896/cldb.24040120 OR https://www.mater-rep.com/EN/Y2025/V39/I14/24040120

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