Development of Density Control Technology for Improving Medical Radiation Shielding Performance of Waste Marble Powder Mixture

The marble used at construction sites creates a large amount of sludge after processing. Because waste has high calcium oxide content, it is often as concrete mix building material. In this study, the use in fabrication radiation shields was investigated for medical shielding applications. A sheet produced by mixing polymer and powder. method improving density developed to improve performance. To using WMP mixture, gap between particles narrowed making small material with proven effect, such bismuth oxide. addition, stirring defoaming process reduce voids particles, we presented control processing temperature 1200 °C. experimental results revealed that powder exhibited highest effect when mixed materials reduction size preparing proved be effective reducing resulting an improvement approximately 15% 20%. based on shown low-dose radiation.