Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Hydration Characteristics and Synthesis of Hauyne-Belite Cement as Low Temperature Sintering Cementitious Materials

  • Park, Sang-Jin (Department of Advanced Materials Engineering, Kangwon National University) ;
  • Jeon, Se-Hoon (Department of Advanced Materials Engineering, Kangwon National University) ;
  • Kim, Kyung-Nam (Department of Advanced Materials Engineering, Kangwon National University) ;
  • Song, Myong-Shin (Research Center of Advanced Convergence Processing on Materials, Kangwon National University)
  • Received : 2017.10.23
  • Accepted : 2018.03.20
  • Published : 2018.05.31
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Abstract

OPC production requires high calorific value and emits a large amount of $CO_2$ through decarbonation of limestone, accounting for about 7% of $CO_2$ emissions. To reduce $CO_2$ emissions during the Ordinary Portland Cement (OPC) production process, there is a method of reducing the consumption of cement or lower temperature calcination for OPC product. In this study, for energy consumption reduction, we prepared Hauyne-belite cement by calcination at a low temperature compared to that used for OPC and studied the early hydration properties of the synthesized Hauyne-belite cement. We set the ratios of Hauyne and belite to 8 : 2, 5 : 5 and 3 : 7. For the hydration properties of the synthesized Hauyne-belite cement, we tested heat of hydration of paste and the compressive strength of mortar, using XRD and SEM for analysis of hydrates. As for our results, the temperature for optimum synthesis of Hauyne-belite is $1,250^{\circ}C$. Compressive strength of synthesized Hauyne-belite cement is lower than that of OPC, but it is confirmed that compressive strength of synthesized Hauyne-belite cement with mixing in of some other materials can be similar to that of OPC.

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References

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