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Dielectric properties of porous cement mortar: fractal surface effects

Niklasson, G.A. ; Berg, A. ; Brantervik, K. ; Hedberg, B. and Nilsson, Lars-Olof LU (1991) In Solid State Communications 79(1). p.93-96
Abstract
We have studied the electrical properties of cement mortars in the frequency range 10-4-107 Hz, for different water contents. The admittance scales as a power law with an exponent of about 0.7 in a wide frequency range. This behaviour is interpreted in terms of polarization and diffusion at fractal pore surfaces. We obtain a fractal dimension of 2.4, which is in good agreement with adsorption isotherm data for the mortar.
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author
; ; ; and
publishing date
type
Contribution to journal
publication status
published
subject
in
Solid State Communications
volume
79
issue
1
pages
93 - 96
publisher
Pergamon Press Ltd.
external identifiers
  • scopus:0026189588
ISSN
1879-2766
DOI
10.1016/0038-1098(91)90486-F
language
English
LU publication?
no
id
777645d4-5f8a-480e-bb9f-bacacdb067f1 (old id 1485659)
date added to LUP
2016-04-04 08:17:37
date last changed
2021-01-03 05:46:45
@article{777645d4-5f8a-480e-bb9f-bacacdb067f1,
  abstract     = {{We have studied the electrical properties of cement mortars in the frequency range 10-4-107 Hz, for different water contents. The admittance scales as a power law with an exponent of about 0.7 in a wide frequency range. This behaviour is interpreted in terms of polarization and diffusion at fractal pore surfaces. We obtain a fractal dimension of 2.4, which is in good agreement with adsorption isotherm data for the mortar.}},
  author       = {{Niklasson, G.A. and Berg, A. and Brantervik, K. and Hedberg, B. and Nilsson, Lars-Olof}},
  issn         = {{1879-2766}},
  language     = {{eng}},
  number       = {{1}},
  pages        = {{93--96}},
  publisher    = {{Pergamon Press Ltd.}},
  series       = {{Solid State Communications}},
  title        = {{Dielectric properties of porous cement mortar: fractal surface effects}},
  url          = {{http://dx.doi.org/10.1016/0038-1098(91)90486-F}},
  doi          = {{10.1016/0038-1098(91)90486-F}},
  volume       = {{79}},
  year         = {{1991}},
}