Improving Magnetic Concrete Permeability by Electromagnetic Pulse-Enhanced Anisotropy

Magnetic concrete (MC) containing cement and magnetic particles is gaining increasing attention. Current research on improving MC permeability mainly focuses on adopting high-performance materials and adjusting magnetic particle sizes and proportions. These methods are effective but often result in increased costs. Enhancing magnetic materials’ anisotropy can improve permeability without adding additional cost. However, existing research has been relatively insufficient in exploring this issue. This paper proposes to use pulsed electromagnetic fields to improve the anisotropy of MC, thereby increasing the permeability. The results indicate that pulses can enhance the permeability (µ<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">r</inf>) of magnetic cores made of particle material by 8.12 % to 24.58 %, depending on the particle size, and increase the permeability of magnetic cores made of MC by 2.79 % without increasing costs.