- Volume 24 Issue 5
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Experimental Study on the Properties of Recycled Concrete using Recycled Coarse Aggregates and Steel Slag Fine Aggregates
재생 굵은골재와 제강슬래그 잔골재를 사용한 재생 콘크리트의 특성에 관한 실험적 연구
Lee, Jaesung;Na, Okpin
- Received : 2015.09.15
- Accepted : 2015.10.19
- Published : 2015.10.30
The purpose of this study is to investigate the optimum replacement rate and material properties of eco-friendly recycled concrete using recycled coarse aggregates and rapid-chilled steel slag fine aggregates. The replacement rate of recycled coarse aggregates was increased from 30% to 50% of total volume of coarse aggregates and the rapid-chilled steel slag aggregates were substituted for 10% to 50% of total volume of fine aggregates. As a result, the increment of recycled coarse aggregates in concrete caused the reduction of the compressive strength. On the other hand, as increasing the replacement ratio of rapid chilled steel slag aggregates, the compressive strength was enhanced. Furthermore, the optimum use of rapid chilled steel slag aggregates was suggested up to 20~30% of fine aggregates and the use of it could be helpful to expand the replacement rate of recycled aggregates.
recycled concrete;recycled coarse aggregate;rapid chilled steel slag;compressive strength;bleeding rate
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Supported by : 한남대학교