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Characteristics of Redmud Ceramics by Sintering Temperature and Raw Materials of Clay Bricks

점토벽돌 제조 원료 종류에 따른 소성온도별 레드머드 세라믹의 특성

  • Received : 2019.07.16
  • Accepted : 2019.10.01
  • Published : 2019.10.30

Abstract

This study aims to recycle redmud which is a byproduct in the alumina industry. Redmud ceramics were prepared according to the type of raw materials by blending redmud with the raw materials used in the conventional clay bricks. In this paper, the compressive strength, water absorption ratio, and shrinkage of redmud ceramics prepared by mixing clay bricks were evaluated. Compressive strength and absorption ratio of redmud ceramics were compared with the clay brick criteria of KS L 4201. At the firing temperature of $1200^{\circ}C$, the specimens containing redmud only and the redmud with sandy loam and black clay were found to satisfy the 1st class of clay brick. The quality standard of compressive strength and absorption ratio was obtained by firing redmud with black clay and sandy loam at $1200^{\circ}C$. Also, when the redmud was mixed with black clay and feldspar, the 2nd class was satisfied when the sample was fired at $1100^{\circ}C$.

Keywords

Acknowledgement

Supported by : 국토교통부, 한국연구재단

References

  1. Park, H., Yoo, S., & Jeong, M. (2010). Properties of the Sintered Eco-brick according to the Unburned Carbon Content of the Coal Briquette Ash, Journal of the Korean Institute of Resources Recycling, 19(3), 16-23.
  2. Jong, Y., Jeong S., & Chea, Y. (2005). Utilization of a Coal-preparation Refuse as a Raw Material for Clay brick, Journal of the Korean Institute of Resources Recycling, 14(4), 3-9.
  3. Ministry of Goverment Legisiation. (2017). Waste control act. Korea .
  4. Kang, S., & Kwon, S. (2017). Effects of red mud and Alkali-Activated Slag Cement on efflorescence in cement mortar, Construction and Building Materials, 133, 459-467. https://doi.org/10.1016/j.conbuildmat.2016.12.123
  5. Vincenzo, M., Renzo, C., Stefano, M., Giovanni, C., Marzio, M., Gerolamo, B., & Giorgio, C. (2000). Bauxite 'red mud' in the ceramic industry. Part 1: thermal behavior, Journal of the European Ceramic Society, 20(3), 235-244. https://doi.org/10.1016/S0955-2219(99)00088-6
  6. Vincenzo, M., Renzo, C., Stefano, M., Giovanni, C., Marzio, M., Gerolamo, B., & Giorgio, C. (2000). Bauxite 'red mud' in the ceramic industry. Part 2: thermal behavior, Journal of the European Ceramic Society, 20(3), 235-244. https://doi.org/10.1016/S0955-2219(99)00088-6
  7. Kang, S., & Kang, H. (2017). Pore and Efflorescence Characteristics of Alkali Activated Slag-Red Mud Cement with Red Mud Content, Journal of the Korea Institute of Building Construction,. 17(3), 261-268. https://doi.org/10.5345/JKIBC.2017.17.3.261
  8. Lee, J., Lee, S., Kim, H., Chei, E., & Lee, Y. (2002). Microstructure and Mechanical Properties of the Sintered Kaolin Block with Fly Ashes, Journal of the Korean Ceramic Society, 39(12), 1164-1170. https://doi.org/10.4191/KCERS.2002.39.12.1164
  9. Kim, S., No, H., Kim, U., & Cho, W. (2014). Study of the Relationship between the Characteristics of Regional Onggis and Fermentation Behavior: (1) Scientific Analysis of Regional Onggis in Korea, Journal of the Korean Ceramic Society, 52(1), 33-40. https://doi.org/10.4191/kcers.2015.52.1.33