Study on Porous Structure of Porous Media in Geotechnical Materials

Abstract:

Geotechnical materials are complex materials with very strong structures, but their structural problems have always been difficult problems in this field. In this paper, by studying the structural problems of geotechnical materials, we understand and master this kind of structural materials. Methods for describing complex materials, as well as the nature, characteristics, and changes of the material after being affected by the environment, especially the influence of the structure of the material on the macroscopic properties of the material. Starting from the basis of the material-material particles, fully consider the particle Geometry, surface characteristics and material characteristics, further analysis of the mechanical and geometric characteristics of structural materials composed of particles, a porosity model describing the pore size distribution is proposed, and the two-dimensional and three-dimensional The experimental data of pores in the space shows that the predicted value of the porosity model agrees well with the measured value in the three-dimensional space.In two-dimensional space, the validity of the model is closely related to the corresponding number of pores and the fractal dimension of the pore size distribution.

• Periodical: Key Engineering Materials (Volume 871)
• Pages: 363-370
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.871.363
• Online since: January 2021
• Authors: Yong Xin Wang*, Chun Hui Lan, Hai Tian
• Keywords: Complex Materials, Geotechnical, Material Structure, Particles

References

[1] Zhang Jiru, Tao Gaoliang, Huang Li, et al. Geotechnical and porosity model of pore size distribution and its application [J]. Scientific Bulletin, 2010, 55 (27 ~ 28): 2761-2770.

[2] Chen Hui'e, Wang Qing. Fractal of microstructure of cement-reinforced soil [J]. Journal of Harbin Institute of Technology, 2008, 40 (2): 307-309.

[3] Zhang Jiru, Huang Li, Zhu Jie, et al. Sem analysis of soil pores and their fractal dimensions on a microscale [J]. Acta Pedologica Sinica, 2008, 45 (2): 22-30.

[4] Crescenzo Petrone, Orsola Coppola, Gennaro Magliulo et al. Numerical model for the in-plane seismic capacity evaluation of tall plasterboard internal partitions [J] Thin-Walled Structures, 2018, 122.

DOI: 10.1016/j.tws.2017.10.047

[5] Gabriela Rutkowska, Piotr Wichowski, Joanna Fronczyk et al. Use of fly ashes from municipal sewage sludge combustion in production of ash concretes [J] Construction and Building Materials, 2018, 188.

DOI: 10.1016/j.conbuildmat.2018.08.167