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Home  >  Journal list  >  Journal of the Ceramic Society of Japan ( 2003 - 2007 )  >  Vol.114  No.1329 (May) (2006)  >  pp.404-407

Journal of the Ceramic Society of Japan ( 2003 - 2007 )
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Development of Fired Clay Bricks by Coal-Preparation Refuse

Jong-Yeong HYUN1), Soo-Bok JEONG2), Young-Bae CHAE2) and Byung-Su KIM2)
1) Research Development Division, Eco-partners Inc.
2) Mineral and Material Processing Division, Korea Institute of Geoscience and Mineral Resources, KIGAM


  It is important to find a possibility for utilizing coal-preparation refuse (CPR) generated from coal mines in terms of environmental and economic points of view. In this study, a possibility for manufacturing fired clay bricks (FCBs) by CPR instead of clay was investigated. Firing shrinkage ratio, compressive strength, and water absorption ratio of test samples manufactured using CPR in the open air were measured. It was found that firing shrinkage ratio and compressive strength decrease with increasing the addition amount of CPR, while water absorption ratio is almost constant under the entire addition amount ranges of that. The test sample manufactured was nearly similar to the 1st grade clay bricks of Korea Standard L (ceramics) 4201.



Keyword:
Coal-preparation refuse (CPR), Fired clay bricks (FCBs), Coal mine, Coal refuse

Received: November 16, 2005
Accepted: March 16, 2006 , Published online: May 01, 2006
Copyright (c) 2006 The Ceramic Society of Japan

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