한국세라믹학회지 (Journal of the Korean Ceramic Society)

  • 제49권2호
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  • Pages.161-166
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  • 2012
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  • 1229-7801(pISSN)
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  • 2234-0491(eISSN)
한국세라믹학회 (The Korean Ceramic Society)
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승온 소성법을 이용한 균일 발포 특성을 갖는 인공경량골재의 제조

Fabrication of Artificial Light-weight Aggregates of Uniform Bloating Properties Using a Temperature-raising Sintering Method

  • 강민아 (경기대학교 신소재공학과) ;
  • 강승구 (경기대학교 신소재공학과) ;
  • 이기강 (경기대학교 신소재공학과) ;
  • 김유택 (경기대학교 신소재공학과)
  • Kang, Min-A (Department of Advanced Materials Engineering, Kyonggi University) ;
  • Kang, Seung-Gu (Department of Advanced Materials Engineering, Kyonggi University) ;
  • Lee, Gi-Gang (Department of Advanced Materials Engineering, Kyonggi University) ;
  • Kim, Yoo-Tack (Department of Advanced Materials Engineering, Kyonggi University)
  • 투고 : 2012.02.03
  • 심사 : 2012.02.28
  • 발행 : 2012.03.31
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초록

The temperature-rasing sintering method was used in this study to fabricate the aggregates of uniform pore size and distribution containing reject ash occurred in the thermal power plant. The spheric green aggregates made of reject ash were put into the box furnace of 800~$1000^{\circ}C$, heated with a heating rate of 5~$15^{\circ}C$/min to 1200~$1275^{\circ}C$, sintered for 10 min and then discharged out of the furnace to the room temperature. The input temperature, heating rate and sintering temperature increased the bloating phenomenon of the specimen, and the sintering temperature among them was the most effective factor. The aggregate manufactured at $1275^{\circ}C$ had the specific gravity of about 1.0 and water absorption of 1~2%, and the pores of 500~1,000 ${\mu}m$ were uniformly distributed across the whole specimen. Especially, the aggregates fabricated using the temperature-rasing sintering method in this study showed an excellent bloating properties and uniform microstructure without black core phenomenon which is typical for the bloated ceramics synthesized by direct sintering method.

키워드

참고문헌

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피인용 문헌

  1. Behavior of radial cracks generated inside artificial lightweight aggregate manufactured from reject ash and dredged soil vol.16, pp.7, 2015, https://doi.org/10.1007/s12541-015-0174-2
  2. Study on the prevention methods of radial cracks generated in artificial lightweight aggregate vol.25, pp.5, 2015, https://doi.org/10.6111/JKCGCT.2015.25.5.199
  3. Bloating Mechanism for Artificial Light Weight Aggregate of Surface Modification with Coal ash vol.52, pp.2, 2015, https://doi.org/10.4191/kcers.2015.52.2.159
  4. Optimum Bloating-Activation Zone of Artificial Lightweight Aggregate by Dynamic Parameters vol.12, pp.2, 2019, https://doi.org/10.3390/ma12020267
  5. 하수슬러지를 이용한 탄화경량골재의 제조 특성 연구 vol.27, pp.6, 2012, https://doi.org/10.11001/jksww.2013.27.6.743
  6. Optimum conditions for unit processing of artificial lightweight aggregates using the Taguchi method vol.7, pp.3, 2019, https://doi.org/10.1080/21870764.2019.1638540