The d.c. conductivity, ~, and low-frequency relative dielectric constant, k, of Portland cement paste were monitored, using impedance spectroscopy, during cooling from room temperature down to -50 ~ Dramatic decreases in the values of ~ and k, as great as two orders of magnitude, occurred at the ini
Interpretation of impedance spectroscopy of cement paste via computer modelling
โ Scribed by R. T. Coverdale; B. J. Christensen; H. M. Jennings; T. O. Mason; D. P. Bentz; E. J. Garboczi
- Publisher
- Springer
- Year
- 1995
- Tongue
- English
- Weight
- 778 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0022-2461
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
Surface corrosion of reinforcing steel embedded in cementitious materials containing chloride ion is described by characteristic change of impedance spectra. Phase angle shift, surface impedance and capacitive responses, recorded at very low frequency (100Hz-10mHz), are demonstrated to be very sensi
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