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Removal Phenomenon of Black Core in Clay Brick Containing High Carbon Content

고탄소질함유 점토벽돌의 내부흑심제거 속도에 대한 연구

  • Jung, Jin-Ho (Advanced Key Material Lab., Korea Institute of Ceramic Engineering and Techlology) ;
  • Kim, Hyun-Tae (Advanced Key Material Lab., Korea Institute of Ceramic Engineering and Techlology)
  • Published : 2006.05.01

Abstract

There have been some studies on the use of coal waste as a raw material for clay bricks due to the lack of naturally producing minerals. It can help resolving the problems of pollution, forest conservation and flood control by utilizing coal waste. However, high content of carbon materials usually leads to the black core in clay bricks after firing process, and diminishes the mechanical and aesthetical properties of clay brick. In this study, the effect of firing process is investigated for the removal of black core in clay bricks with carbon content. The removal kinetics of black core are also compared and investigated with the firing schedule and black core removal.

Keywords

References

  1. J. M. Rim and B. U. Kim, 'Removal of Heavy Metals in Mine Drainage by Adsorbent Made from Coal Wastes,' J. Kor. Solid Wastes Eng. Soc., 16 [5] 466-73 (1999)
  2. K. W. Kim, Y. S. Doh, and X. F. Li, 'Evaluation for Characteristics of Coal-Mine Waste Concrete,' J. Kor. Soc. Agricul. Eng., 43 [2] 132-39 (2001)
  3. K.-S. Yeon, 'Problem and Solution for Recycle of Coal Mine Wastes,' Monthly Environment, 21 [9] 23-125 (2002)
  4. J. H. Jung, J. W. Yoo, J. U. Lee, and H. T. Kim, 'Application of Coal Wastes to Clay Brick and Investigation of Physical Properties,' J. Ind. Eng. Chem., 11 [2] 175-79 (2005) https://doi.org/10.1021/ie50110a037
  5. M. S. Lee, C. K. Na, and M. Y. Kim, 'Reusability of Coal Fly Ash as an Additive for Clay Brick,' J. Kor. Solid Wastes Eng. Soc., 15 [4] 342-51 (1998)
  6. J. Y. Park, Y. T. Kim, K. G. Lee, S. G. Kang, and J. H. Kim, 'Properties of Aggregates in Terms of Black Core Formation,' Proceedings of Fall Meeting of the Korean Ceramic Society, 2005, Daejeon, Korea, 50 (2005)
  7. O. Levenspiel, 'Chemical Reaction Engineering,' pp. 42-54, John Wiley and Sons, Inc., New York, 1967
  8. 'Testing Method for Water Absorption, Bulk Density, Apparent Specific Gravity and Apparent Porosity of Fired Whiteware Products,' KS L 4008 (1996)
  9. 'Testing Method for Compressive(Crushing) Strength of Fired Whiteware Materials,' KS L 1203 (2002)