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| 전기로 환원슬래그 Up-cycling : 환경위해성 평가 및 환원슬래그를 혼합하여 제조한 2성분계 및 3성분계 혼합시멘트 모르타르 압축강도 평가 |
| 조한상1, 문영범2, 문원식1, 박대철1, 김형철2, 최형국2 |
1동부제철 기술연구소
2성신양회 기술연구소 |
| Up-cycling of Air-cooled Ladle Furnace Slag : Environmental Risk Assessment and Mortar Compressive Strength Assesment of Binary and Ternary Blended Cement Using Air-cooled Ladle Furnace Slag |
| Han Sang Cho1, Young Bum Mun2, Won Sik Moon1, Dae Cheol Park1, Hyeong Cheol Kim2, Hyun Kook Choi2 |
1Donbu Steel Technical Research Laboratories
2SungShin Cement Research and Development Center |
| Corresponding author |
Han Sang Cho ,Tel: 042-866-8172, Fax: 042-866-8199, Email: envcho13@naver.com
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Received: September 23, 2014; Revised: January 2, 2015; Accepted: March 30, 2015. Published online: March 31, 2015. |
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| ABSTRACT |
This study investigated the environmental risk for up-cycling of air-cooled ladle furnace slag (LFS) and evaluated the mortar compressive strength of binary and ternary blended cements using LFS of 3, 5, 10 wt%. Based on the Soil Environment Conservation Act standard, there was no environmental risk of the up-cycling of LFS.
Results of mortar compressive strength assesment showed that the compressive strength of two blended cements using LFS of lower than 5 wt% was about 1.1 times superior to that of un-substituted cement (ordinary portland cement, OPC); however the compressive strength of those with LFS of 10 wt% decreased with 10% compared with that of OPC. |
| Key Words:
Air-cooled Ladle Furnace Slag Recycle, Binary And Ternary Blended Cement, Compressive Strength Assesment |
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