Effect of Sulphate on the Formation of $C_3S$ and Its Properties

$C_3S$의 生成反應 및 特性에 미치는 黃酸鹽의 影響

  • 김병권 (인하대학교 무기재료공학과) ;
  • 최상흘 (한양대학교 무기재료공학과) ;
  • 한기성 (인하대학교 무기재료공학과)
  • Published : 1988.03.01

Abstract

Effect of $SO_3$ on the formation of $C_3S$ and its properties were investigated through studies for diffusion of reacting component, the size variation of $C_3S$ and compositional change of the phases in the clinker. When less than 2.0% of $SO_3$ was added to the clinker composition, the formation of $C_3S$ was enhanced, however, addition of more than 2.0% of $SO_3$ rather restrained the reaction remarkably. The diffusion coefficient of Si into the melt was about $3.6~4.2{\times}10^{-7}Cm^2$/sec and it was slightly decreased with the amount of $SO_3$. The crystal size of $C_3S$ formed in the clinker was grown gradually according to the amount of $SO_3$, when more than 1.0% of $SO_3$ was added. With increasing of $SO_3$ content in the clinker composition of CaO and decreasing of $SiO_2$ were found in the melt of the clinker. Consequently, it is considered that the decreasing of $C_3S$ formation is caused by dissolution and transportation of CaO component into liquid phase is interrupted.

Keywords

References

  1. 8th Inter. Symp. Chem. Cem. v.6 no.Sub-Theme(Ⅰ) Kinetics of Cement-Making Reactions F.P. Glasser
  2. J. Am. Cerm. Soc. v.54 no.4 Diffusion in Three-Component Cement Clinkers N.H. Christensen;O.L. Jepsen
  3. J. Am. Cerm. Soc. v.56 no.9 Model for Reaction between CaO Particles and Portland Cement Clinkers V. Johansen
  4. 6th Inter. Congr. Chem. Cem. The Mechanism of Clinker Formation Processes and Ways of Modification Y.M. Butt;V.V. Timashev
  5. 8th Inter. Symp. Chem. Cem. v.Ⅰ no.Sub-Theme1-2 Relationship of Processing Parameters to Clinker Properties;Influence of Minor components I. Maki
  6. Cem. Conc. Res. v.10 Sulphates in Cement Clinkering;Immiscibility between Sulfate and Oxide Melt at 1350℃ F.P. Glasser;J. Marr
  7. Cem. Conc. Res. v.7 The Role of Sulphates in Cement Clinkering Reaction;Phase Formation and Melting in the System CaO-Ca₂SiO₄-CaSO₄-K₂SO₄ Y.B. Pliego-Cuervo;F.P. Glasser
  8. Cem. Tech. Modeling the Clinker Reaction N.H. Christensen
  9. Cem. Conc. Res. v.16 Investigation of the Effect of Minor Ion on the Stability of β-C₂S and the Mechanism of Stabilization F. Xiuji;L. Shizong
  10. Cem. Conc. Res. v.9 The Role of Sulphates in Cement Clinkering;Subsolidus Phase Relation in the System CaO-Al₂O₃-SiO₂-SO₃ Y.B. Pliego-Cuervo;F.P. Glasser
  11. Build-Res. Tech. Paper No.16 The Quartanary System CaO-Al₂O₃-SiO₂-Fe₂O₃in Relation to Cement Technology F.M. Lea;T.W. Parker
  12. KSL 5120
  13. Microstructure of Portland Cement Clinker F. Hofmanner
  14. KSL 5201
  15. 4th Int. Symp. Chem. Cem. X-Ray Diffraction Examination of Portland Cement Clinker M.G. Midgley;D. Rosaman;K.E. Fletcher
  16. 5th Inter. Symp. Chem. Cem. v.Ⅰ Mechanism and Kinetics of Portland Cement Clinker Formation for an Example of the Solid State Reaction in the Presence of Liquid Phase R. Kondo;S. Choi
  17. Zem. Kalk Gips. v.38 Influence of Alkalies and Sulphur on the Properties of Cement-Part Ⅰ J. Strunge;D. Knofel;K. Dreizier
  18. Zem. Kalk Gips. v.38 Influence of Alkalies and Sulphur on the Properties of Cement-Part Ⅱ J. Strunge;D. Knofel;K. Dreizier
  19. Cem. Conc. Res. v.12 Factors Influencing the Phase Constitution of Alite in Portland Cement Clinker I. Maki;K. Goto
  20. 요업재료의 과학과 기술 v.2 no.2 The Formation and Decomposition of Tricalcium Silicate in Cement Clinker F.P. Glasser
  21. Cem. Conc. Res. v.9 Electron Micropore Analysis of Portland Cement Clinker A. Ghose;P. Barnes