A TWO-DIMENSIONAL WAVE PROPAGATION METHOD FOR TORTUOSITY ANALYSIS OF PORE STRUCTURE

Author(s): Deqing Xie, Peng Zhao, Lin Yang and Yunsheng Zhang
Book Title: RILEM International Symposium on Concrete Modelling - CONMOD 2014
Editor: Kefei Li, Peiyu Yan and Rongwei Yang
ISBN: 978-2-35158-139-1
e-ISBN: 978-2-35158-140-7
Publisher: RILEM Publications SARL
Publication year: 2015
Pages: 102-109
Total Pages: 8
Language: English

Abstract: Tortuosity is an important parameter for characterizing the ions transport behaviors of cement-based materials (e.g., ions permeation and diffusion). This paper presents a two-dimensional (2D) Wave Propagation Method to quantitatively characterize system's tortuosity based on a binary image. The binary image of fresh cement paste's initial microstructure can be obtained by scanning electron microscope (SEM) observation. To reduce the effects of binary image's limited size, a modified periodic boundary is employed in this study. Finally, the determination about best values of two crucial factors are discussed in this paper.

Online publication: 2015
Publication Type: full_text
Public price (Euros): 0.00