Author(s)

Heping Liu ¹

Affiliation(s)

¹ Beijing University of Technology, Beijing, China

Corresponding Author

Heping Liu

ABSTRACT

Hybrid fiber ultra-high performance concrete is widely utilized in engineering practice due to its superior mechanical properties and durability. This study aims to investigate the influence of various types and concentrations of fibers on the fracture behavior of ultra-high performance concrete. The effects of fiber type and fiber content on the tensile strength, fracture toughness, and failure mode of super-high performance concrete were examined through a combination of experimental testing and theoretical analysis. The findings reveal that the type and quantity of fibers significantly impact the fracture performance of ultra-high performance concrete. Taking into account both strength and toughness, an optimized fiber ratio scheme is proposed to enhance the fracture performance of ultra-high performance concrete. This provides a solid theoretical foundation for its engineering applications.

KEYWORDS

Ultra-high performance concrete; mixed fiber; fracture properties; tensile strength and fracture toughness

CITE THIS PAPER

Heping Liu, Study on the Fracture Performance of Intermixed Fiber Ultra-High Performance Concrete. Journal of Civil Engineering and Urban Planning (2024) Vol. 6: 56-61. DOI: http://dx.doi.org/10.23977/jceup.2024.060208.

REFERENCES

[1] Luo Yiming, Zhang Bo, Liu Yanyu, et al. Experimental study on high temperature performance of mixed fiber reinforced ultra-high performance concrete [J]. Silicate Bulletin, 2024, 43 (03): 825-832.
[2] Zhang Yubin, Bao Shihui, Zhang Cong. Study on the bending performance of permeable concrete [J]. Silicate Bulletin, 2022, 41 (06): 1955-1962.
[3] Hu Daoqian. Study on the bending fracture performance of ultra-high performance steel fiber concrete [D]. Southeastern University, 2022.
[4] Wang Long, Chi Yin, Xu Lihua, et al. Size effect of mechanical properties of intermixed fiber ultra-high performance concrete [J]. Journal of Building Materials, 2022, 25 (08): 781-788.
[5] Chi Yin, Yin Congru, Xu Lihua, et al. Steel polypropylene fiber enhances the mechanical properties of ultra-high performance concrete [J]. Journal of Silicate, 2021, 49 (11): 2331-2345.

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