Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Mineral Phase and Microstructure Behaviors on Burning Condition of Domestic Low-grade Limestone

국내 저품위 석회석의 소성조건에 따른 광물상 및 미세구조 거동

  • Cho, Jin Sang (Department of Research and Development, Korea Institute of Limestone and Advanced Materials) ;
  • Moon, Ki-Yeon (Department of Research and Development, Korea Institute of Limestone and Advanced Materials) ;
  • Choi, Moon-Kwan (Department of Research and Development, Korea Institute of Limestone and Advanced Materials) ;
  • Cho, Kye-Hong (Department of Research and Development, Korea Institute of Limestone and Advanced Materials) ;
  • Ahn, Ji-Whan (Mineral Resources Research Division, Korea Institute of Geoscience and Mineral Resources) ;
  • Yeon, Kyu-Seok (Department of Regional Infrastructure Engineering, Kangwon National University)
  • 조진상 (한국석회석신소재연구소 연구개발실) ;
  • 문기연 (한국석회석신소재연구소 연구개발실) ;
  • 최문관 (한국석회석신소재연구소 연구개발실) ;
  • 조계홍 (한국석회석신소재연구소 연구개발실) ;
  • 안지환 (한국지질자원연구원 광물자원본부) ;
  • 연규석 (강원대학교 지역건설공학과)
  • Received : 2014.02.07
  • Accepted : 2014.03.05
  • Published : 2014.03.31
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Abstract

Natural hydraulic lime (NHL) is produced by burning a form of low-grade limestone containing silica and alumina which, above certain temperatures, combine with calcium oxide. The resulting silicates and aluminates impart hydraulic properties to the product. This study aims to determine the calcined characteristics of NHL using domestic low-grade limestone with maximized hydraulic properties. Six types of low-grade limestone containing $SiO_2$ were selected and experiments were carried out with different burning temperatures and holding times. The burning temperature and holding time as the most suitable burning conditions were $1,200^{\circ}C$ to $1,300^{\circ}C$ and 3 to 7 h, respectively, for the manufacturing of NHL from domestic low-grade limestone. These results demonstrate the feasibility of NHL using domestic low-grade limestone to produce NHL.

Keywords

References

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