Numerical Simulation Study on the Cement-Based Absorbing Material

Abstract:

The absorbing performance have been tested and analyzed by taking cement as matrix, blending material silica fume and culver zed fuel ash, graphite and carbon fibers, nanoTiO₂ and steel fibers for absorbing agent trial Sample, in the 8 ~ 18 GHz frequency band. By using ANSYS software for computer simulation of the specimen to test experimental data and found the issue to be cement-based composite absorbing material in design, the electrical conductivity, complex permittivity, complex permeability, Dielectric loss tangent, etc of the material are all the main parameters of evaluate absorbing materials. When blending material as a composite wave-absorbing agent applications, two kinds of materials dielectric loss played a attenuation role in common, it can significantly improve the absorbing properties of the specimen, and also broaden the band, it's more advantage than adding a single wave-absorbing agent.

• Periodical: Advanced Materials Research (Volume 853)
• Pages: 169-173
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.853.169
• Online since: December 2013
• Authors: Rong Jun Chen*, Yong Zhang, Bo Wang
• Keywords: Absorbing Property, Cement-Based Material, Electro-Magnetic Field Emulation, Measuring Test by Arch Method, Modified Materials

References

[1] ZHANG Xiao-hui, KANG Qing, XU Shou-bing．Experimental research on electromagnetic shielding properties of stee1-ifber concrete[J]. Journal of Functional Materials, 2007，38，2978-2980.

[2] Jingyao Cao D.D. L．Chung．Colloidal graphite as an admixture in cement and as a coating on cement for electromagnetic interference shielding[J]. Cement and Concrete Research, 2003, 33(12): 1737-1740.

DOI: 10.1016/s0008-8846(03)00152-2