Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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A Study on the Preparation of Modified Belite Cement Using Converter Slag

전로슬래그를 이용한 Modified Belite Cement의 제조에 관한 연구

  • 박종옥 (국립공업기술원 요업기술원) ;
  • 김승진 (한국 건자재 시험연구원) ;
  • 박홍수 (명지대학교 공과대학 화학공학과) ;
  • 신현택 (경상대학교 공과대학 무기재료공학과)
  • Published : 1995.08.01
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Abstract

In order to prepare the modified belite (C2S-C4A3S-C4AF-CS) cement with low energy, clinkers were synthesized by converter slag, limestone, gypsum and clay. The synthesized clinkers were characterized and the hydration processes were investigated by XRD, SEM and microconduction calorimetry. The hydrates were mainly C-S-H and ettringite. The needle-like ettringite formed by the hydration of C4A3S at the early stage of hydration was filled in the inner vacant spaces of the hardened body and it might contribute to the rapid-hardening phenomena. The hardened body became stronger due to the hydration of C2S at the later period. The compressive strengths of the cement-3 mortars hydrated for 3, 7 and 28 days were 115, 128 and 211 Kgf/$\textrm{cm}^2$, respectively.

Keywords

References

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