Percolation effects in the electrical conductivity of porous cement mortar
(1990) In Europhysics Letters 13(6). p.549-554- Abstract
- We have studied the electrical properties of cement mortars in the frequency range 10-3 to 107 Hz. The bulk d.c. conductivity was distinguished from electrode polarization effects at low frequencies as well as from a frequency dispersion at high frequencies. The bulk conductivity displays a dramatic variation with the water content of the samples. A percolation threshold can be seen at very low water contents. The conductivity varies as a power law of water content above the threshold. The power law exponent is consistent with the predictions of a percolation theory of Trugman and Weinrib.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1485654
- author
- Brantervik, K. ; Berg, A. ; Niklasson, G.A. ; Hedberg, B. and Nilsson, Lars-Olof LU
- publishing date
- 1990
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Europhysics Letters
- volume
- 13
- issue
- 6
- pages
- 549 - 554
- publisher
- EDP Sciences
- external identifiers
-
- scopus:0742310587
- ISSN
- 0295-5075
- DOI
- 10.1209/0295-5075/13/6/013
- language
- English
- LU publication?
- no
- id
- d5b7458a-2752-476f-882a-357443080644 (old id 1485654)
- date added to LUP
- 2016-04-01 11:57:26
- date last changed
- 2021-09-05 03:21:11
@article{d5b7458a-2752-476f-882a-357443080644, abstract = {{We have studied the electrical properties of cement mortars in the frequency range 10-3 to 107 Hz. The bulk d.c. conductivity was distinguished from electrode polarization effects at low frequencies as well as from a frequency dispersion at high frequencies. The bulk conductivity displays a dramatic variation with the water content of the samples. A percolation threshold can be seen at very low water contents. The conductivity varies as a power law of water content above the threshold. The power law exponent is consistent with the predictions of a percolation theory of Trugman and Weinrib.}}, author = {{Brantervik, K. and Berg, A. and Niklasson, G.A. and Hedberg, B. and Nilsson, Lars-Olof}}, issn = {{0295-5075}}, language = {{eng}}, number = {{6}}, pages = {{549--554}}, publisher = {{EDP Sciences}}, series = {{Europhysics Letters}}, title = {{Percolation effects in the electrical conductivity of porous cement mortar}}, url = {{http://dx.doi.org/10.1209/0295-5075/13/6/013}}, doi = {{10.1209/0295-5075/13/6/013}}, volume = {{13}}, year = {{1990}}, }