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High purity C₃A synthesis method and effect of CaCO₃ on C₃A initial hydration reaction

  • Journal of the Korean Crystal Growth and Crystal Technology
  • Abbr : J. Korean Cryst. Growth Cryst. Technol.
  • 2023, 33(6), pp.244~249
  • DOI : 10.6111/JKCGCT.2023.33.6.244
  • Publisher : The Korea Association Of Crystal Growth, Inc.
  • Research Area : Engineering > Materials Science and Engineering
  • Received : November 17, 2023
  • Accepted : November 29, 2023
  • Published : December 31, 2023

Hye-Jin Yu 1,  Woo Sung Yum 1

1한국세라믹기술원

Accredited

ABSTRACT

In this study, various experimental parameters were investigated for high-purity C₃A synthesis. As a results of experiment, it was verified that the calcined temperature was the most important parameter for the synthesis of high-purity C₃A. In addition, more synthesis time was needed when large amount of C₃A synthesis to achieve high-purity. Meanwhile, the C₃A blended with CaCO₃ showed different reaction products compared to normal cement because C15 and C30 had monocarbocaluminate as a reaction product at early stage of hydration. Furthermore, the production amount and formation rate of monocarboaluminate formation was different varying with the CaCO₃ amounts.

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