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Tricalciumaluminate의 초기 수화반응에 미치는 $K_2O$의 영향

Effect of Potassium Oxide on the Early Hydration of Tricalciumaluminate


Two kinds of clinker liquid melts, one containing 2.0% of $K_2O$ and the other without $K_2O$, were prepared with the similar composition as those developed during the firing of portland cement clinker. One portion of melt was quenched and found to consist of glass together with traces of proto-$C_3A$, and the other portion was allowed to cool spontaneously to crystallize $C_3A$ and calciumferrite well. The product obtained by crystallization of the melt without $K_2O$showed cubic $C_3A$, while orthorhombic $C_3A$ was formed from the crystallized product containing $K_2O$. Studies on the hydration behavior of the samples made from the melts with 30% of gypsum were carried out for 24 hours by observation at regular intervals ettringite, monosulphate hydrates and gypsum which were formed or consumed during hydration. The samples without $K_2O$ in the melts were hydrated wth addition of proper amount of $K_2SO_4$ in the water for hydration. Hydration behavior of glassified $C_3A$ showed that it has low reactivity relative to crystallized $C_3A$, and also hydration reactivity of orthorhombic $C_3A$ was much lower than that of cubic $C_3A$ in 60 minutes. Potassium sulphate in the solution reduced the hydration reactivity of $C_3A$ . Evolution peaks of hydration heat examined by twin-type conduction micro-calorimeter showed that glassified $C_3A$ without $K_2O$ had secondary peak after 9 hours and $C_3A$ containing $K_2O$ after 12 hours. When crystallized $C_3A$ was hydrated, initial peaks of hydration heat were considerably high and there was no secondary peak for cubic $C_3A$ but the secondary peak of orthorhombic $C_3A$ appeared after 4 hours.

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참고문헌 (13)

  1. Microstructure of Clinkers Containing Magnesium Oxides and Alkalies , I. G. Luginina;An. N. Luginina;I. S. Akhmeton;G. V. Orlove , Tsement / v.7,pp.13-15, 1974
  2. The Influence of the Content and Distribution of Alkalies on the Hyd-ration Properties of Portland Cement , B. Osbaeck;E. S. Jons , Proc. 7th, Int'l Symp. Chem. of Cement / v.11-135,pp., 1980
  3. The Influence of Alkalies on the Strength Propertics of Portland Cement , B. Osbaeck , Zement-Kalk-Gips / v.2,pp.72-77, 1979
  4. Influence of Al-kalies on the Hydration of Cement , S. Sprung;W. Rechenberg , Proc. Symp. Effect of Alkalies on Properties of Conc.(3rd.) / v.,pp.109-123, 1996
  5. Alkalih-Rich Cem-ent Dust in Portland Cement , O. Henning;R. Stieler , Proc. 6th Int'l Symp. Chem. of Cement / v.,pp., 1974
  6. Effect of Storage on the Properties of Cement , W. Richartz , Zement-Kalk-Gips / v.26,pp.67-74, 1973
  7. The Influence of Alkali-Carbonate on the Hydration of Cement , M. M. G, Niel , Proc. 5th, Int, Symp. Chem. of Cement / v.Ⅱ,pp.472-486, 1968
  8. Setting and Eary Strength of Ce-ment , F. W. Locher , Zement-Kalk-Gips / v.26,pp.53-62, 1973
  9. Effect of Mill Atmosphere on the Setting and Strength of Cement , S. Aprung , ibid / v.27,pp.259-267, 1974
  10. Investigations of a Portion of the Quaternary System CaO-Al₂O₃-SiO₂-FeO₃.The Quaternary System CaO-2CaO. SiO₂-5CaO. 3Al₂O₃-4CaO.Al₂O₃.Fe₃O₃ , F. M. Lea;T. W. Parker , Phil. Tr-ans. Roy. Soc / v.A234,pp.1-41, 1934
  11. Crystallization of the Liquid Phase Developed During Clinkering , K. S. Han;F. P. Glasser , Cement and Concrete Research / v.10,pp.483-489, 1980
  12. F. M. Lea , The Chem. Cement and Conc.(3rd Edition) / v.,pp.204-235, 1970
  13. The Influence of Gypsum on the Hydration and Properties of Portland Cement Pastes , W. Lerch , PCA Bulletin / v.,pp., 1946

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