Characterization of the pore structure through multiscale model

Author(s): Xiaofei Guan, Xian Liu, Renchao Lu, Haoli Zhang
Paper category: Conference
Book title: 2nd International conference on Microstructural-related Durability of Cementitious Composites
Editor(s): Guang Ye, K. Van Breugel, Wei Sun, Changwen Miao
Print ISBN: 978-2-35158-129-2
e-ISBN: 978-2-35158-123-0
Publisher: RILEM Publications SARL
Pages: 930 - 936
Total Pages: 6
Language: English

Abstract: 
Pore-structure directly determines porous material’s macroscopic properties such as permeability or diffusivity. Many related attempts have been conducted experimentally or theoretically, but each method has its limitation.

In this context, a new modeling method has been attempted which takes the pore-structure as three-dimensional pore-network, which, different from other theoretical models, integrates experimental results as the basic input information. Concerning the random nature of porestructure, a stochastic pore-network has been introduced. Following it, an effective computer generation algorithm has been developed to generate the random pore-scale network. In the new modeling method, the geometries of pores and the corresponding stationary random distribution are defined based on experimental information firstly. The take-and-place method and selection algorithm are employed to realize the pore-network. The effectiveness of this new modeling method has been validated compared with experiment results.

Online publication: 2013
Publication Type: full_text
Public price (Euros): 0.00