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http://dx.doi.org/10.14190/JRCR.2020.8.3.310

An Experimental Study on the Development of EMP Shielding Concrete According to the Types of Aggregates of Industrial By-products  

Min, Tae-Beom (R & D Center, Sungshin Cement)
Publication Information
Journal of the Korean Recycled Construction Resources Institute / v.8, no.3, 2020 , pp. 310-316 More about this Journal
Abstract
In this study, the stability and EMP shielding performance of metal-based industrial by-products aggregates with excellent conductivity and easy procurement to be used as concrete aggregates for EMP shielding are evaluated. The industrial by-products are electronic-arc-furnace oxidizing slag, copper smelting slag, and ferro-moldibdenum. The composition analysis of aggregates and aggregate stability are evaluated. As a result of the experiment, ferro-moldibdenum is shown to have l ow stability as an aggregate due to its high Free-CaO. The remaining aggregates are evaluated to be safe to use as aggregates for concrete. In addition, industrial by-products aggreagate-specimens excluding ferro-moldibdenum are shown higher compressive strength than the plain specimen. The recycle aggregates, electronic-arc-furnace oxidizing slag and copper smelting slag, are shown excellent EMP shielding performance, the EMP shielding performance is expected to increase if the average particle diameter of the aggregate is small or evenly distributed.
Keywords
Recycled resources; Aggregate; Concrete; EMP shielding;
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