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Study on Formation of Cement Clinker from the Mixture of Oyster Shell, Casting Dust and BOF Slag

패각-주조분진-전로슬래그 조합물의 시멘트 클링커 생성거동에 관한 연구

  • 천성민 (경남대학교 신소재공학부) ;
  • 송태웅 (경남대학교 신소재공학부)
  • Published : 2003.12.01

Abstract

The mixtures which are in the chemical composition of Portland cement were prepared from oyster shell, casting dust and BOF slag. The clinkerbility and the behaviour of formation of clinker minora]s were studied using the mixtures mainly by the mineral and microstructural observation. By virtue of the characteristics of starting raw materials, the clinkering temperature was lower as much as 100$^{\circ}C$ than that of a mixture prepared from normal raw materials. Uncombined calcium oxide was vanished entirely below 1350$^{\circ}C$. and the formation of major cement minerals such as alite and belite could be nearly accomplished without too much liquid phase within 1400$^{\circ}C$.

포틀랜드 시멘트의 조성범위가 되도록 한 패각-주조분진-전로슬래그계 조합물의 클링커 소성성과 시멘트 광물 생성거동에 대하여 광물상과 미구조 관찰을 중심으로 연구하였다. 이 조합물은 원료의 특성상 융액 생성이 용이하여 시멘트 클링커는 일반 천연 원료를 사용한 경우에 비하여 10$0^{\circ}C$ 정도 낮은 온도에서 생성된다. 조합물 내의 유리산화칼슘은 135$0^{\circ}C$ 이하에서 완전히 소멸되며 alite나 belite와 같은 시멘트 주광물의 합성은 140$0^{\circ}C$ 이하의 온도에서 과다한 유리상의 생성이 없이 완료된다.

Keywords

References

  1. Portland Cement : Composition, Production and Properties G.C.Bye
  2. Reactions Occurring During Cement Making F.P.Glasser
  3. Proc. 5th Intl. Symp. Chem. of Cement v.1 Chemistry of Cement Clinker R.Kondo;S.Choi
  4. Materials Chemistry of Cement(Second Edition) Y.Arai
  5. The Rotary Cement Kiln K.E.Peray
  6. Proc. of the 4th Intl. Conf. on The Chemistry of Cement v.1 Chemistry of Cement T.Heilmann
  7. Crystal Chemistry of Portland Cement Phases M.Regourd
  8. Hydration of Portland Cement I.Jawed;J.Skalny;J.F.Young

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  3. Evaluation of Antimicrobial Activity of Allyl Isothiocyanate (AITC) Adsorbed in Oyster Shell on Food-borne Bacteria vol.21, pp.4, 2015, https://doi.org/10.7464/ksct.2015.21.4.241