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

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 degrees C and - 30 degrees C. The bulk dielectric constant, 30-20, and conductivity, 6.14 x 10(-5)-0.65 x 10(-5), in the temperature range - 10 to - 28 degrees 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.
Publisher
Springer
Issue Date
1994-04
Language
ENG
Keywords

ELECTRICAL-CONDUCTIVITY; AC RESPONSE

Citation

JOURNAL OF MATERIALS SCIENCE, v.29, no.7, pp.1910 - 1914

ISSN
0022-2461
URI
http://hdl.handle.net/10203/62443
Appears in Collection
PH-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
  • Hit : 159
  • Download : 0
  • Cited 0 times in thomson ci
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡClick to seewebofscience_button
⊙ Cited 6 items in WoSClick to see citing articles inrecords_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0