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Title |
Effect of Aligned Steel Fibers by a Solenoid on Flexural Fracture Behavior
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Authors |
이규필(Gyu-Pil Lee) ; 문도영(Do-Young Moon) |
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DOI |
https://doi.org/10.11112/jksmi.2023.27.6.193 |
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Keywords |
강섬유보강콘크리트; 전자기장; 솔레노이드; 파괴에너지 Steel fiber-reinforced concrete; Electro-magnetic field; Solenoid; Fracture energy |
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Abstract |
This paper investigates the effect of directional alignment of steel fibers using an electromagnetic field on the flexural fracture behavior of steel fiber reinforced concrete. A specially designed and manufactured solenoid, capable of aligning steel fibers in the longitudinal direction of the beam specimen, was employed for this purpose. Beam specimens with a design strength of 30 MPa were produced, and failure tests were conducted on specimens exposed to electromagnetic fields and those without exposure. Experimental variables included the mixing ratio and aspect ratio of steel fibers. The results of the experiments revealed a slight increase in flexural strength and crack mouth opening displacement at the maximum load for specimens exposed to the electromagnetic field. Notably, a significant enhancement in fracture energy was observed.
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