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Author
Christensen, B. J. | Mason, T. O. | Jennings, H. M. | Bentz, D. P. | Garboczi, E. J.
Title
Experimental and Computer Simulation Results for the Electrical Conductivity of Portland Cement Paste.
Coporate
Northwestern Univ., Evanston, IL National Institute of Standards and Technology, Gaithersburg, MD
Book or Conf
Materials Research Society. Advanced Cementitious Systems: Mechanisms and Properties. Volume 245. December 1-4, 1991, Materials Research Soc., Pittsburgh, PA, Boston, MA, Glasser, F. P.; McCarthy, G. J.; Young, J. F.; Mason, T. O.; Pratt, P. L.; Chen, Y., Editors, 259-264 p., 1991
Keywords
portland cement | paste | electrical conductivity | simulation | transport property | microstructure | experiments
Abstract
The electrical conductivity of protland cement paste is an important transport property, especially since, when properly normalized by the pore fluid conductivity, it is equivalent to the normalized ionic diffusivity of the material via the Nernst-Einstein relation. This paper presents experimental and computer simulation results. Comparison between simulation and experiment is carried out for an 0.5 water:cement ratio white cement paste as a function of capillary porosity. The quantitative agreement between theory and experiment is reasonable.