An Experimental Study on Electromagnetic Shielding Effectiveness and Impact Resistance of UHPC for Protective Facilities

Abstract:

The research was conducted on incorporating short carbon fiber and multi-layer graphene into ultra-high performance concrete (UHPC) to improve the dynamic mechanical performance and electromagnetic shielding effectiveness (SE). In the electromagnetic shielding effectiveness testing, the results shown that UHPC with uniformly distributed conductive fibers exhibited superior shielding effectiveness at high frequencies. In comparison to normal concrete, the UHPC demonstrated the capability to withstand higher impact energy. Simultaneously enhancing both electromagnetic shielding characteristics and dynamic mechanical performance of cementitious materials can be challenging. In this study, employing a composite structure was effective solution to overcome this issue. In accordance with the experimental results, a scaled testing protective facility has been constructed, and the research results could provide the reference for the design and construction of protective structures.

• Periodical: Key Engineering Materials (Volume 983)
• Pages: 87-95
• DOI: https://doi.org/10.4028/p-OlA9sO
• Online since: July 2024
• Authors: Chang Yu Kuo*, Ying Kuan Tsai, Jo Yen Nieh, Yi Shiuan Tian
• Keywords: Electromagnetic Shielding Effectiveness (SE), Impact Resistant, Multi-Layer Graphene, Short Carbon Fiber, Ultra-High Performance Concrete (UHPC)

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