Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Hydration of $C_4A_3\bar{S}$-Calciumsicate Clinker

$C_4A_3\bar{S}$-Calciumsicate계 크링커의 수화반응

  • 이승주 (한양대학교 무기재료공학과) ;
  • 최상흘 (한양대학교 무기재료공학과)
  • Published : 1982.01.01
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Abstract

The clinckers were obtained when a raw mixture consisted of limestone, slags and gypsum was burned at 134$0^{\circ}C$ for 30 minutes, and 128$0^{\circ}C$ for 30 minutes adding $CaF_2$ as a flux. The principal compounds of these clinkers were $C_3S_2$, $\beta-C_2S$, $C_1A_3{\bar{S}}$. To investigate hydration behavior, cements were made and hydrated at constant humidity cabinet (W/C=0.5 20$\pm 1^{\circ}C$). X-ray diffractometer, SEM, and conduction calorimeter were employed to examine the hydration behavior. The hydrates were mainly C-S-H, ettringite, $Ca(OH)_2$. By the hydration of $C_3S$ and $C_4A_3\bar{S}$, the needle-like ettringite filling the inner vacant spaces of the hardened body might contribute to the rapid-hardening and high-strength phenomena. Furthermore, the hardened body became stronger due to the hydration of $C_2S$ at later period. The addition of granulated blastfurnace slags have a potential to be a blended cement.

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References

  1. 窯業學會誌 v.15 no.3 시멘트 原料로서 廢·副産資源의 活用 崔相紇;朴容浣;池政植;吳興鉀
  2. World Cement Technology v.11 no.4 Investigations on Energy-Saving Cements P. K. Mehta
  3. 시멘트技術年報(日) v.34 早强高爐시멘트의 製造 秋山桂一;太田威;岡元豊重
  4. 7th International Congress on the Cement Chenmistry v.3 High Strength Cement in the CaO-Al₂O₃-SiO₂-SO₃ System and its Application G. Sudoh;T. Ohta;H. Harada
  5. Proceedings of the 5th. International Symposium on the Chemistry of Cement v.4 Fundamental Studies on the Expansive Cement N. Fukuda
  6. Chemistry of Cement and Concrete(3rd. ed.) Calculation of Constituent Compounds in Cements F. M. Lea
  7. Proceedings of the 5th. International Symposium on the Chemistry of Cement v.4 Miner-alogical Composition of Expansive Cement Clinker Rich in SiO₂ and its Expansibility T. Nakamura;G. Sudoh;S. Akaiwa
  8. Cement and Concrete Research v.9 no.1 Rate of Formation of C₃S with Addition of CaF₂ V. Johansen;N. H. Christensen
  9. J. Amer. Ceram. Soc. v.63 no.11-12 Structure and Properties of Portland Cement Clinker Doped with CaF₂ Ivan Odler;S. Abdul-Maula
  10. J. Ceram. Assoc. Japan v.73 Synthesis and Crystallography of the Compounds Belong to Hauyne Type Structure R. Kondo
  11. 시멘트 심포지움(第6回) v.21 水和熱 測定에 의한 시멘트 水和反應硏究 崔相紇
  12. 시멘트 技術年報(日) v.33 no.64 高黃酸鹽 Slag Cement의 水和에 對한 Awm系 클링커의 剌激效果 內田郁夫;能見淸三郞;峯岸敬一
  13. Cement and Concrete Research v.2 The Paste Hydration of 4CaO-3Al₂O₃-SO₃ in Presence of Calcium Sulphate, Tricalcium Silicate and Dicalcium Silicate Mario Collepardi;Renato Turriziani
  14. 시멘트技術年報(日) v.33 CaO-Al₂O₃-SO₃-SiO₂系 Clinker의 生成反應과 水和性狀 原田宏;太田威;須藤儀一
  15. J. Amer. Ceram. Soc. v.56 no.6 Effect of Lime on Hydration Pastes Containing Gypsum and Calcium Aluminate or Calcium Sulphoaluminates P. K. Mehta
  16. 시멘트技術年報(日) v.21 C₄A₃(SO₃)의 水和膨脹에 關한 硏究 赤岩重雄;須藤儀一;中村孝則
  17. Cement and Concrete Research v.1 The Microstructure of Hydrated Super Sulphated Cement H. G. Midgley;K. Pettifer
  18. 시멘트技術年報(日) v.20 Calcium Sulfoaluminate의 生成에 미치는 Silica의 影響 福田延術;淸久長和
  19. Cement and Concrete Research v.3 Mechanism of Expansion Associated with Ettringite Formation P. K. Mehta
  20. 시멘트技術年報(日) v.22 Calcium Sulfoaluminate의 水和反應 世郞昇;土屋通世
  21. Cement and Concrete Research v.3 On the Role of Free Calcium Oxide in Expansive Cements W. Kurdowski;A. Thiel