- Author
-
Bentz, D. P.
|
Garboczi, E. J.
- Title
- Digitized Direct Simulation Model of the Microstructural Development of Cement Paste.
- Coporate
- National Institute of Standards and Technology, Gaithersburg, MD
- Book or Conf
- Materials Research Society Symposium Proceedings. Volume 195. 1990,
523-530 p.,
1990
- Keywords
-
cement paste
|
simulation
|
diffusion-limited aggregate
|
hydration process
|
microstructural model
|
percolation properties
|
pore space
|
diffusivity
- 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 of hydrating 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.