Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Synthesis and Hydration Property of 3CaO.${3Al_2}{O_3}$.$CaSO_4$ Clinker by Solid State Reaction

고상반응에 의한 3CaO.${3Al_2}{O_3}$.$CaSO_4$ 클링커의 제조 및 수화

  • 전준영 (현대시멘트 연구개발과) ;
  • 김형철 (단국대학교 재료공학과) ;
  • 조진상 (단국대학교 재료공학과) ;
  • 송종택 (단국대학교 재료공학과)
  • Published : 2000.05.01
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Abstract

3CaO.3Al2O3.CaSO4(C4A3)clinker was prepared by solid state reaction and then its hydration property was investigated. C4A3 clinker was fired at various temperatures in the range of 700~135$0^{\circ}C$. The hydration of it was studied by XRD, DSC, Solid-state 27Al MAS NMR and SEM. According to the results, the Ca4A3 clinker was produced by reacting calcium aluminates with CaSO4 and Al2O3 and C4A3 was formed as a main phase after calcining at 120$0^{\circ}C$. The hydration products were mainly calcium monosulfoaluminate hydrate and Al(OH)3, and they were produced after 2hrs of hydration. However the hydration rate was about 74% at 3days.

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References

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