Journal of Materials Science

, Volume 29, Issue 7, pp 1910–1914 | Cite as

Dielectric spectra of fresh cement paste below freezing point using an insulated electrode

  • S. S. Yoon
  • S. Y. Kim
  • H. C. Kim


The spectra of complex dielectric constant were measured on a fresh cement paste with a water/cement ratio of 0.4 sandwiched between insulated electrodes in the frequency range 10 kHz–1 MHz and temperature range between 0 °C and — 30 °C. The bulk dielectric constant, 30–20, and conductivity, 6.14×10−5−0.65×10−5, in the temperature range −10 to −28 °C were much lower than those at room temperature, owing to the great decrease of ionic mobility caused by freezing the cement paste. The activation energy of 0.31 eV for the ionic conduction in fresh cement paste was obtained from an Arrhenius plot of conductivity at subzero temperature.


Polymer Activation Energy Dielectric Constant Ionic Conduction Material Processing 
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Copyright information

© Chapman & Hall 1994

Authors and Affiliations

  • S. S. Yoon
    • 1
  • S. Y. Kim
    • 2
  • H. C. Kim
    • 2
  1. 1.Physics DepartmentAndong National UniversityKyungbukKorea
  2. 2.Physics DepartmentKorea Advanced Institute of Science and TechnologyTeajonKorea

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