Influence of Boundary Conditions on Pore Percolation in Model Cement Paste

Abstract:

Fresh model cement mixtures, with the same w/c ratio and particle size distribution, were simulated by the SPACE system that is based on a dynamic mixing algorithm. Thereupon, they were hydrated by the HYMOSTRUC 3D system. Boundary conditions were varied, rendering possible assessment of their influence on percolation of capillary porosity by serial sectioning and using the overlap of slices. Simulation results revealed increases in total porosity and in connected fraction of capillary pores due to the existence of aggregate. The de-percolation threshold of capillary porosity was found not only related to total porosity and image resolution, but also governed by the spatial distribution of capillary pores.

• Periodical: Key Engineering Materials (Volumes 302-303)
• Pages: 486-492
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.302-303.486
• Online since: January 2006
• Authors: Hui Su Chen, Piet Stroeven, Guang Ye, Martijn Stroeven
• Keywords: Boundary Condition, Cement Paste, Image Resolution, Modeling, Percolation, Pore

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