Enhanced Microwave Deicing Capacity of Cement Pavement with Carbon Fiber Screens

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Abstract
The combination of an absorbing structure and a road is a promising strategy for road deicing using microwaves. In this study, cement mortar (CM) specimens containing a carbon fiber screen (CFS) were prepared to concentrate electromagnetic losses on a road surface. The effect of the size and depth of the CFS on the surface heating efficiency of the microwave was studied and optimized, and a microwave deicing experiment was conducted. The results indicated that the destructive interference produced by the CFS led to the effective surface heating of the CM/CFS specimens. The optimal surface heating rate was 0.83 °C/s when the spacing, depth, and width of the CFS were 5.22, 13.31, and 2.80 mm, respectively. The deicing time was shortened by 21.68% from 83 to 65 s, and the heating rate increased by 17.14% from 0.70 to 0.82 °C/s for the specimen with CFS-1, which was 15 mm depth. Our results demonstrate that CM/CFS composite structures can be effectively applied to increase the capacity and accelerate the development of the microwave deicing of roads.
Funding Information
  • Shaanxi Provincial Department of Science and Technology General Project (2024JC-YBMS-442, 2023GK08, 2023-CXY-132, 2023-CXY-125, 2023-CXY-138, 2023-CXY-157)
  • Doctoral start-up fund (2024JC-YBMS-442, 2023GK08, 2023-CXY-132, 2023-CXY-125, 2023-CXY-138, 2023-CXY-157)
  • Industry–University–Research Project of Yulin Science and Technology Bureau (2024JC-YBMS-442, 2023GK08, 2023-CXY-132, 2023-CXY-125, 2023-CXY-138, 2023-CXY-157)

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