AUTHOR=Zhang Shibing , Sun Zhen , Zhou Junli , Yang Bo , Zhang Jiuchang , Cui Zhihao 

TITLE=Numerical Analysis of Effective Permeability of Concrete-Like Material With a Random Three-Phase Mesostructure

JOURNAL=Frontiers in Physics

VOLUME=Volume 9 - 2021

YEAR=2021

URL=https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2021.752589

DOI=10.3389/fphy.2021.752589

ISSN=2296-424X

ABSTRACT=Interfacial transition zone (ITZ) is an important component of the concrete-like material. Accurately simulating the ITZ characteristics of the concrete-like materials is a difficult problem in numerical simulation. This paper proposed a random three-phase mesostructure modeling method using an incorporation of random aggregate generation, Minkowski sum theory and polygon union techniques. It was found that this method can better simulate the mesostructure and ITZ characteristics of concrete-like materials. By using this method, a random three-phase mesostructure model had been built for conducting a finite element analysis to investigate the effective permeability parameters of the concrete. A good agreement between numerical and experiment result indicates the feasibility of this method in concrete-like material analysis.