Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
권호 표지
DOI QR코드

DOI QR Code

Correlation to the Physical Properties of Green and Sintered Body of Artificial Lightweight Aggregate with the Pelletizing Variables

펠레타이저 공정변수와 인공경량골재의 성형체와 소성체 물성과의 상관관계

  • Wie, Young-Min (Department of Materials Engineering, Kyounggi University) ;
  • Lee, Ki-Gang (Department of Materials Engineering, Kyounggi University)
  • Published : 2007.10.31
Download PDF
⟨ Previous Next ⟩

Abstract

For the manufacturing lightweight fine aggregate, clay and waste material was formed by pelletizer. The fine aggregate of 1-5 mm diameter was formed by diameter 76 cm pelletizer disc. Pelletization variables were : (1) pelletizer disc angle, (2) speed of revolution of pelletizer, (3) added pelletization time. Green and sintered aggregate were measured specific gravity, absorption rate and average size. The optimum condition were found that the pelletization variables were angle at $70^{\circ}$, speed of revolution of pelletizer at 23.2 rpm, and water/solid ratio at 1/5. At these conditions, it was formed that fine aggregate green whose average size was $2.0{\sim}3.35mm$. Specific gravity and average size are increased with low angle of disc and fast revolution speed of disc. Specific gravity and average size were not distinctly influenced by added pelletization time. Sintered aggregate was distinctly influenced by properties of green.

Keywords

References

  1. Ki Gang Lee and Jung Hwan Kim, 'Manufacruring of Construction Material using Inorganic Dust II : Artificial Lightweight Aggregate,' Ceramist 6 [3] 35-42 (2003)
  2. Dong-Kwon Kim, Jung-Min Lee, and Bo-Sung Rhee, 'A Study on the Growth of Balls in a Disk Granulator,' Hwahak Konghak 29 [2] (1991)
  3. K.I. Harikrishnan and K. Ramamurthy, 'Influence of Pelletization Process on the Properties of Fly Ash Aggregates,' Waste Management 26 846-52 (2006) https://doi.org/10.1016/j.wasman.2005.10.012
  4. Gohan Baykal and Ata Guhan Doen, 'Utilization of Fly Ash by Pelletization Process; Theory, Application Areas and Research Results,' Resources Conservation and Recycling 30 [1] 59-77 (2000) https://doi.org/10.1016/S0921-3449(00)00042-2
  5. C. M. Riley, 'Relation of Chemical Properties to the Bloating of Clay,' J. Am. Ceram. Soc., 34 121-28 (1951) https://doi.org/10.1111/j.1151-2916.1951.tb11619.x
  6. M. Dondi, G. Guarini, M. Raimondo, and I. Venturi, 'Orimulsion Fly Ash in Clay Bricks - Part 2 : Technological of Clay/Ash Mixtures,' J. of European Ceram. Soc., 22 1737-47 (2002) https://doi.org/10.1016/S0955-2219(01)00494-0
  7. R. Manikandan and K. Ramamurthy 'Influence of Fineness of Fly Ash on the Aggregate Pelletization Process,' Cement & Concrete Composites, 29 456-64 (2007) https://doi.org/10.1016/j.cemconcomp.2007.01.002
  8. Jaroslave, S.R.B. and Ruzickova, Z., 'Pelletization of Fines,' Elsevier, New York, 1998
  9. Zhang, M.H. and Gjorv, O.E., 'Characteristics of Lightweight Aggregates for High-strength Concrete,' ACI Materials J., 88 150-57
  10. Harikrishnan KI and Ramamurthy K, 'Study of Parameters Influencing the Properties of Sintered Fly Ash Aggregates,' J. Solid Waste Tech Manage, 30 136-42 (2004)
  11. Ramamurthy K and Harikrishnan KI, 'Influence of Binders on Properties of Sintered Fly Ash Aggregate,' Cement & Concrete Composites, 28 33-38 (2006) https://doi.org/10.1016/j.cemconcomp.2005.06.005
  12. Bhattacharjee U and Kandpal TC 'Potential of Fly Ash Utilization in India,' Energy, 27 151-66 (2002) https://doi.org/10.1016/S0360-5442(01)00065-2
  13. Chen-Chiu Tsai, Kuen-Sheng Wang, and Ing-Jia Chiou 'Effect of $SiO_2-Al_2O_3$-Flux Ratio Change on The Bloating Characteristics of Lightweight Aggregate Material Produced from Recycled Sewage Sludge,' J. Hazardous Materials, B134 87-93 (2006) https://doi.org/10.1016/j.jhazmat.2005.10.035
  14. Wasserman R. and Benthur A., 'Effect of Lightweight Fly Ash Aggregate Microstructure on The Strength of Concrete,' Cement and Concrete Research, 27 525-37 https://doi.org/10.1016/S0008-8846(97)00019-7
  15. Kawatra SK and Ripke SJ, 'Developing and Understanding the Bentonite Fiver Forming Mechanism,' Miner Eng, 14 647-59 (2001) https://doi.org/10.1016/S0892-6875(01)00056-5