Preparation of Aligned Steel Fiber Reinforced Cementitious Composite and Its Flexural Behavior

Mu, Ru; Wei, Luansu; Wang, Xiaowei; Li, Hui; Qing, Longbang; Zhou, Jing; Zhao, Qi

doi:10.3791/56307-v

Cited by 4 publications

(1 citation statement)

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“…In 1977, Miller and Björklund 17 pioneered the magnetic field method and utilized it for the first time to realize fiber alignment. Mu et al 22–25 prepared ASFRC specimens by electromagnetic field method and found that compared with SFRC, with the same fiber volume dosage, the tensile strength, flexural strength, and shear strength of ASFRC were increased by 30%–60%, 50%–900%, and 35%–45%, respectively. Qing et al 26 found that for ASFRC relative to that of random SFRC, the average efficiency of fracture parameters improved by 50%–80% in pre‐peak behavior and more than 100% in terms of post‐peak response.…”

Section: Introductionmentioning

confidence: 99%

Investigation on crack extension resistance curve of aligned steel fiber‐reinforced cement‐based composites

Qing

Zhang

et al. 2023

Fatigue Fract Eng Mat Struct

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In this study, an analytical method was proposed to predict the crack extension resistance curve (KR curve) of aligned steel fiber‐reinforced cement‐based composites (ASFRC). The three‐point bending tests were carried out on notched ASFRC specimens. Based on the predicted results, the influence of size effect and fiber dosage on KR curves of ASFRC specimens was discussed. Finally, the relationship between KR curves of ASFRC and steel fiber‐reinforced cement‐based composite (SFRC) specimens was investigated. The results show that the analytical results agree well with the experimental ones. The KR curve of ASFRC specimen has size effect and increases with fiber dosage. The ASFRC specimen shows a 30% improvement in the crack extension resistance at peak load over the SFRC specimen when the fiber volume dosage is 0.8%, and the improvement becomes more pronounced with increasing fiber dosage. When the KR curves of ASFRC and SFRC specimens are the same, the fiber consumption can be reduced by at least 40%.

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Section: Introductionmentioning

confidence: 99%