| 첨가제와 소결방법이 EFA Dust/점토 소결체의 경량화에 미치는 영향 |
| 권영진, 이기강, 김유택, 김영진, 강승구, 김정환, 박명식 |
| 경기대학교 재료공학과 |
| Effects of Additives and Sintering Method on the Properties of Light Aggregate Prepared from EAF Dust/Clay |
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| ABSTRACT |
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EAF(Electric Arc Furnace) Dust classified as special wastes containing heavy metal contaminants may cause to damage an environment such as underground water contamination if they were not treated properly. The possibility of producing the porous sintered body made from EAF Dust/clay composition system was studied. Mixing of EAF Dust and clay was carried out using wet-mixing process and two different sintering methods such as rapid and normal heat treatment were tried. By observing density, porosity and microstructure of sintered bodies, it was found that the bloating phenomenon depend on the contents of C, where the liquid phase occur or not during the sintering process. To obtain a light-aggregate of porous body due to bloating, the rapid heating was better than the normal heating at sintering process. |
| Key words:
EAF Dust, Clay, Bloating, Porosity, Rapid heating |
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