Design and Preparation of Cement-Based Composite with Electromagnetic Protection

Abstract:

Using space electromagnetic wave propagation principle, environment requirements of building protective engineering structure and performance characteristics of cement-based composites, a design idea of cement-based composite with electromagnetic protection is presented in the present study. This design idea was tested and verified. According to the proposed new designed method, by optimizing and selecting the wave-transparent aggregate and absorbing agent material, the absorbing composite materials of cement-based electromagnetic protection, electromagnetic wave absorbent, energy saving and environmental protection can be improved. A new cement-based composite with electromagnetic protection and microwave absorbing properties (the minimum reflectivity is-8.4dB), wide frequency bandwidth, and letter mechanical properties was prepared by using a 20 mm sample between 8-18 GHz. The results provide a basis design and preparation of cement-based composite with electromagnetic protection.

• Periodical: Materials Science Forum (Volumes 743-744)
• Pages: 382-388
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.743-744.382
• Online since: January 2013
• Authors: Kun Tian, Sheng Yin Zhou, Jiang Rong Xiao, Ru Guang Li, Peng Yao
• Keywords: Cement-Based, Composite, Electromagnetic Protection

References

[1] H. T Guan, S. H Liu, Duan Y, Cement based electromagnetic shielding and absorbing building materials, Cement Concrete Composites. Vol . 5 (2006) 468-474.

DOI: 10.1016/j.cemconcomp.2005.12.004

[2] J. Y Cao, D Chung, Use of fly ash as an admixture for electromagnetic interference shielding, Cement & Concrete Research. Vol. 10, (2004) 1889-1892.

DOI: 10.1016/j.cemconres.2004.02.003

[3] S. P Lu, S. H Liu, Y. B Zhao, Study on new filled wave absorbing materials, Functional Material & Apparatus. Vol. 11 (2005) 498-500.

[4] S. H Lui, M. J Liu, Electromagnetic shielding and wave absorbing materials, Beijing, Chemical Industry Press, (2007) 25-34.

[5] S. N Kharkocsky, U. C Hasar, M. F Akay, et al., Measurement and monitoring of microwave reflection and transmission properties of cement-based materials for propagation modeling, C. Vehicular Technology Conference. Greece: Rhodes. vo1. 2 (2001).

DOI: 10.1109/vetecs.2001.944573

[6] S. N Kharkocsky, M. F Akay, U. C Hasar, et al., Measurement and monitoring of microwave reflection and transmission properties of cement-based specimens, J. IEEE. Traps. Instr & Meas. 51 (2002) 1210-1218.

DOI: 10.1109/tim.2002.808081

[7] D.D. L Chung, Cement reinforced with short carbon fibers: a multifunctional material. Composites: Part B. 31 (2000) 511-526.

DOI: 10.1016/s1359-8368(99)00071-2

[8] Yamane T, Numata S, Mizumoto T, et al., Development of wide-band ferrite fin electromagnetic wave absorber panel for building wall[C]. Electromagnetic Compatibility, 2002 International Symposium on Minnesota: Minneapolis. vo1. 2 (2002) 799-804.

DOI: 10.1109/isemc.2002.1032697

[9] Jaeruen Shim, Hyo-Tae Kim, Design of wave absorber for small conducting sphere, J. Electronics letters. 34 (1998) 1833-1834.

DOI: 10.1049/el:19981329