Electrode configurations and impedance spectra of cement pastes
โ Scribed by S. J. Ford; T. O. Mason; B. J. Christensen; R. T. Coverdale; H. M. Jennings; E. J. Garboczi
- Book ID
- 104737830
- Publisher
- Springer
- Year
- 1995
- Tongue
- English
- Weight
- 644 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0022-2461
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๐ SIMILAR VOLUMES
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 O~ and -30~ The bulk dielectric constant, 30-20, and conductivity, 6.14x 10-5-0.
Impedance spectra were collected in situ during the exchange of the aqueous phase with an organic solvent in young (1-28 days old) ordinary portland cement (OPC) pastes at two water-to-cement ratios (w/c = 0.35 and 0.70). The high initial values of dielectric constant (103-105) and the rapid decline