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J Korean Soc Environ Eng > Volume 37(3); 2015 > Article
J Korean Soc Environ Eng 2015;37(3): 159-164. doi: https://doi.org/10.4491/KSEE.2015.37.3.159
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
Received: September 23, 2014;  Revised: January 2, 2015;  Accepted: March 30, 2015.  Published online: March 31, 2015.
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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