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http://dx.doi.org/10.14190/JRCR.2021.9.4.478

A Study on Validation of the Shielding Effectiveness Measurement Method of the Concrete Containing Electric Arc Furnace Oxidizing Slag  

Jang, Hong-Je (The S.M.A.R.T Industry Division, KTL)
Lee, Han-Hee (The S.M.A.R.T Industry Division, KTL)
Choi, Hyo-Sik (The S.M.A.R.T Industry Division, KTL)
Song, Tae-Seung (The S.M.A.R.T Industry Division, KTL)
Cho, Won-Seo (The S.M.A.R.T Industry Division, KTL)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.9, no.4, 2021 , pp. 478-482 More about this Journal
Abstract
In this paper, methods for manufacturing shielding concrete by recycling steelmaking slag discarded as industrial waste and measuring the shielding effectiveness of the shielding concrete were studied. By comparing the result of shielding effectiveness measurement of this concrete block with shielding effectiveness measurement of the structure constructed with this concrete, the measurement system for measuring shielding effectiveness of the concrete block was verified. The size of the concrete stru ctu re is 2.9 × 2.9 × 3.4m and the concrete block is 0.3 × 0.3 × 0.2m. The frequ ency band u sed for mesu rement is 600MHz - 2GHz, the types of concrete u sed to measu re the shielding effectiveness are general concrete and concrete containing electric arc furnace oxidizing slag. In the case of the concrete structure, reinforcing rebars are installed at intervals of 15cm for stru ctu ral safety, as the frequ ency increase, the electromagnetic wave properties of rebars gradu ally decreased, there was a slight difference in the measurement results. In conclusion, the measurement result of shielding effectiveness of the concrete block is similar to the result of the concrete structure. It is thought that it can be sufficiently utilized for electromagnetic wave engineering design, and the concrete shielding effectiveness measurement system using standard specimens was verified.
Keywords
Concrete; Shielding concrete; Electric arc furnace oxidizing slag; EMP shielding;
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  • Reference
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