Journal of the Korean Crystal Growth and Crystal Technology (한국결정성장학회지)

The Korea Association of Crystal Growth (한국결정성장학회)
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Study on characteristics of board prepared by microwave drying process of coal bottom ash and vermiculite

바텀애쉬를 이용한 흡음 내장재 개발에 관한 연구

  • Jun, Hyun Chul (Institute for Industry-Academy Cooperation, Hannam University) ;
  • Kim, Geug Tae (Department of Advanced Materials and Chemical Engineering, Hannam University)
  • 전현철 (한남대학교 산학협력단) ;
  • 김극태 (한남대학교 화공신소재공학과)
  • Received : 2017.06.09
  • Accepted : 2017.06.16
  • Published : 2017.06.30
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Abstract

In this study, we prepared the board of vermiculite materials utilizing coal bottom ash from the Western thermal power stations in Korea and obtained experimental data in applications for building interior materials with the characteristics of sound absorption. To produce the mixture materials of vermiculite and coal bottom ash, we used a microwave drying process. In addition, a ball milling process was used to produce particles of coal bottom ash with a uniform size of $65{\mu}m$. When the board made from mixture materials of vermiculite and coal bottom ash were produced with bottom ash sulfur concentrations of 5, 10 wt%, maximum bending loads were analyzed. These experimental results would contribute much to fundamental data essential to the recycling technology of coal bottom ash.

본 연구에서는 국내 화력발전소에서 발생되는 바텀애쉬를 이용하여 질석 성형물을 제작하였으며, 이를 이용하여 흡음 건자재 제조를 위한 흡음성, 최고 휨파괴하중에 대하여 고찰하였다. 이러한 바텀애쉬와 질석의 성형물 제조를 위하여, 마이크로웨이브 건조방식의 공정를 사용하였다. 또한, 바텀애쉬의 볼밀링작업을 통하여 얻어진 $65{\mu}m$ 정도의 크기의 균일한 분말이 사용되었다. 5, 10 wt%의 바텀애쉬와 질석의 성형물을 제조하여, 최고 휨파괴하중 특성이 분석 되었다. 이러한 실험 결과들은 바텀애쉬의 재활용 기술에 필요한 기초적인 데이터를 제공한다.

Keywords

References

  1. UNFCCC, Adoption of the Paris Agreement, December, 2015.
  2. https://www.keei.re.kr/main.nsf/index.html.
  3. H.Y. Park, S.I. Seo, S.C. Kim and D.S. Kang, "Reburning of bottom ash in a coal fired powder plant and its effect on the plant management", J. Korea Solid Wastes Eng. Soc. 24 (2007) 472.
  4. J.W. Moon and B.Y. Kim, "Study on the development possibility of eco-friendly ceramic nonflammable floor finishing materials using bottom ash", J. Korea Soc. Waste Manag. 31 (2104) 662. https://doi.org/10.9786/kswm.2014.31.6.662
  5. T.W. Jeon, J.E. Park, D.G. Hwang, S.Y. Hong, S.K. Shin, G.J. Oh, Y.Y. Kang, N.I. Um, Y.W. Jeong and S.K. Jeong, "The study on recycling availability and use expansion of coal ash", NIER-RP2014-279, Resource Recirculation Research Division National Institute of Environmental Research (2014).
  6. J.H. Maeng, Environment Forum 19 (2015).
  7. D.H. Suh and J.H. Maeng, "A study on expanding the recycling of coal ash for minimizing environmental impact imposed by the establishment of thermal power plant ash ponds", J. Environ. Impact Assess. 24 (2015) 472. https://doi.org/10.14249/eia.2015.24.5.472
  8. K.S. Chae, S.H. Cho, Y.W. Yoon and K.S. Kim, "Basic study for the utilization of mixed coal ash as lightweight embankment", KSCE Civil Expo 2007, October 10-12, Daegu, Korea (2007).
  9. S.J. Lee, Y.J. Cho and B.G. Cho, "Trends of recycling technologies in utilization of coal combustion byproducts for manufacturing geopolymers through patent and literature analysis", J. Korean Inst. of Resources Recycling. 23 (2014) 81. https://doi.org/10.7844/kirr.2014.23.2.81
  10. K.K. Kuk, H.Y. Kim and B.S. Chun, "A study on the engineering characteristics of power plant coal ash", J. Korean Geo-Environ. Soc. 11 (2010) 25.
  11. I.W. Hwang, H.G. Park, J.E. Oh and C.G. Kim, "Mechanical properties of fly ash-based geopolymer concrete", Proceedings of the Korea Concrete Institute Annual Fall Research Conference, November 9-11, Pyeongchang, Korea (2011).
  12. K.T. Koh, G.S. Ryu, S.H. Kim and J.H. Lee, "Strength properties of fly ash based geopolymer mortar", KRCRI Fall Annual Conference, November 1-2, Korea (2012).
  13. P.K. Chang and Y.J. Kim, "Pozzolanic properties of fly ash from a coal fired power plant", J. Korean Ceram. Soc. 42 (2003) 702.
  14. M. Singh and R. Siddique, "Effect of coal bottom ash as partial replacement of sand on properties of concrete, resources", Conservation and Recycling 72 (2013) 20. https://doi.org/10.1016/j.resconrec.2012.12.006
  15. S. Maschio, G. Tonello, L. Piani and E. Furlani, "Fly and bottom ashes from biomass combustion as cement replacing components in mortars production: rheological behaviour of the pastes and materials", Chemosphere 85 (2011) 666. https://doi.org/10.1016/j.chemosphere.2011.06.070
  16. D. Eliche-Quesada and J. Leite-Costa, "Use of bottom ash from olive pomace combustion in the production of eco-friendly fired clay bricks", Waste Manag. 48 (2016) 323. https://doi.org/10.1016/j.wasman.2015.11.042
  17. J.W. Moon and B.Y. Kim, "Study on the development possibility of eco-friendly ceramic nonflammable floor finishing materials using bottom ash", J. Korea Soc. Waste Manag. 31 (2004) 662.
  18. S.Y. Park, H.S. Park, J.W. Moon and J.H. Oh, "A study on property evaluation for the development of functional flooring material using bottom ash", J. Korea Resid. Environ. 10 (2012) 107.
  19. K.D. Kim and S.G. Kang, "Manufacturing artificial lightweight aggregates using coal bottom ash and clay", J. Korea Cryst. Technol. 17 (2007) 277.
  20. S.C. Kim, "Evaluation of bottom ash on the application for the aggregate of concrete", J. Korean Recycled Construction Resour. Inst. 10 (2010) 105.
  21. J.H. Oh, S.Y. Park, J.W. Lee, H.S. Park and J.W. Moon, "An experimental study on the manufacturing technology materials and incombustible function of lightweight concrete panel use bottom ash", J. Korean Soc. Hazard Mitig. 12 (2012) 131. https://doi.org/10.9798/KOSHAM.2012.12.2.131
  22. S.T. Kang, G.S. Ryu, K.T. Koh and J.H. Lee, "Optimum mix design of alkali-activated cement mortar using bottom ash as binder", J. Korea Concr. Inst. 23 (2011) 487. https://doi.org/10.4334/JKCI.2011.23.4.487
  23. J.M. Kim, E.G. Kwak, S.H. Cho and C. Kang, "Decision of optimized mix design for lightweight foamed concrete using bottom ash by statistical procedure", J. Korea Concr. Inst. 21 (2009) 3. https://doi.org/10.4334/JKCI.2009.21.1.003
  24. M.T. Oh and Y.J. Sung, "evaluation of applicability of bottom ash as inorganic filler", J. Korea TAPPI. 44 (2012) 80.
  25. S.K. Kim and T.Y. Lee, "Analyses of chemical compositions and water leaching tests for bottom ash obtained from thermal power plant", Korean Geo-Environmental Conference 2009, September 11, Seoul, Korea (2009).
  26. W.S. Yoon, H.C. Cho, S.J. Park, J.K. Kim and Y.S. Chae, "Experimental study on physical and mechanical properties of bottom ash", KGI Fall National Conference, October 10-11, Gwangju, Korea (2008).
  27. W.G. Shin, D.S. Lim and B.S. Chun, "A study on selfhardening characteristics of coal ash by mixing ratio of fly ash and bottom ash", J. Korean Geo-Environ. Soc. 11 (2010) 85.
  28. B.W. Jo, J.K. Koo and S.K. Park, "Hardening characteristics of fly ash and bottom ash paste by alkaline activation", J. Korean Soc. of Civ. Engineers 25 (2005) 289.
  29. B.U. Hong, C.S. Choi, E.S. Jang and S.S. Choi, "Characteristics of sulfur-solidified materials by the physical properties of coal bottom ash", Appl. Chem. Eng. 25 (2014) 58. https://doi.org/10.14478/ace.2013.1105
  30. J.W. Moon and S.H. Lim, "A study on flame resistance performance of lightweight panel with coating bottom ash", J. Korea Resid. Environ. 13 (2015) 211.
  31. S.J. Lee, N.H. Kang, C.M. Chon and H.T. Jou, "Grinding effects of coal-fired pond ash on compressive strength of geopolymers", J. Korean Inst. Resour. Recycling 23 (2014) 3.
  32. "Special law on metropolitan air quality improvement", Ministry of environment, Law No. 11909 (2013).
  33. "The rules regarding the structure of the building evacuation", Ministry of land, infrastructure and transport, Rule No. 80 (2014).
  34. S.J. Kim, J.Y. Choi and H.H. Shin, "Design and analysis of mixture experiments for ball mix selection in the ball milling", J. Korean Soc. Qual. Manag. 42 (2014) 579. https://doi.org/10.7469/JKSQM.2014.42.4.579
  35. D. Kang, J.W. Lee, J.H. Gu and H.K. Park, "Sound absorption characteristics of building interior decoration materials", Transactions of the Korean Soc. Noise and Vibration Eng. 17 (2007) 201. https://doi.org/10.5050/KSNVN.2007.17.3.201