Hostname: page-component-8448b6f56d-c47g7 Total loading time: 0 Render date: 2024-04-25T01:39:43.507Z Has data issue: false hasContentIssue false
  • English
  • Français

Digitized Direct Simulation Model of the Microstructural Development of Cement Paste

Published online by Cambridge University Press:  28 February 2011

Dale P. Bentz  and
Edward J. Garboczi
Dale P. Bentz
Affiliation:
National Institute of Standards and Technology Building Materials Division, 226/B348 Gaithersburg, Maryland 20899
Edward J. Garboczi
Affiliation:
National Institute of Standards and Technology Building Materials Division, 226/B348 Gaithersburg, Maryland 20899
Get access

Abstract

The complex microstructure of hardened cement paste is produced by hydration reactions between cement particles and the water in which they are suspended. In recent years, algorithms like the diffusion-limited aggregation (DLA) and Eden models have demonstrated that simple growth rules can result in complex aggregated structures. The model described in this paper simulates, via simplified growth rules, the microstructural development ofhydrating cement paste. This model has similarities to DLA, but with the additional novel features of dissolution of solid particles, and a free-space nucleation probability. The percolation aspects and transport properties of the model's pore space are computed and discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 195: Symposium S – Physical Phenomena in Granular Materials , 1990 , 523
Copyright
Copyright © Materials Research Society 1990

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

[1] Meakin, P., in Phase Transitions and Critical Phenomena, Vol. 12, edited by Domb, C. and Lebowitz, J.L. (Academic Press, New York, 1988).Google Scholar
[2] Eden, M., in Proceedings of the Fourth Berkeley Symposium on Mathematical Statistics and Probability Vol. IV, edited by Neyman, Jerzy (Univ. of California Press, Berkeley, 1961).Google Scholar
[3] Bentz, D.P. and Garboczi, E.J., in Proceedings of the NIST/ACerS Conference on Advances in Cementitious Materials (American Ceramics Society, 1990).Google Scholar
[4] Stauffer, Dietrich, Introduction to Percolation Theory, Taylor and Francis, London, 1985.Google Scholar
[5] Powers, T.C., Copeland, L.E., and Mann, H.M., PCA Bulletin 10 (1959).Google Scholar
[6] Garboczi, E.J., “Permeability, Diffusivity, and Microstructural Parameters: A Critical Review”, Cem. and Conc. Res., in press.Google Scholar
[7] Bentz, D.P., Gingold, D.B., Garboczi, E.J., Lobb, C.J., and Jennings, H.M., in Proceedings of the NIST/ACerS Conference on Advances in Cementitious Materials (American Ceramics Society, 1990).Google Scholar
[8] Fogelholm, R., J. of Phys. C13, L571 (1980).Google Scholar
[9] Gingold, D.B. and Lobb, C.J., “Percolative conduction in three dimensions”, submitted to Phys. Rev. B.Google Scholar
[10] Shante, V.K.S. and Kirkpatrick, S., Adv. in Phys. 20, 325 (1971).Google Scholar
[11] Atkinson, A., and Nickerson, A.K., J. of Mats. Sci. 12, 3068 (1984).Google Scholar
[12] Page, C.L., Short, N.R., and Tarras, A. El, Cem. and Conc. Res. 11, 395 (1981).Google Scholar
[13] Schwartz, L.M., private communication.Google Scholar
[14] Roy, D.M., Science 235, 651 (1987).Google Scholar