Skip to Main content Skip to Navigation
New interface
Journal articles

Determination of geometrical parameters of the microstructure of a porous medium Application to cementitious materials

Abstract : Mass transfer in porous media is governed, besides the species diffusion coefficient, by the porosity and the geometrical parameters of the materials microstructure. This paper aims at developing a methodology for the determination of tortuosity and constrictivity factor based on a diffusion modeling in a porous medium of neutral species. Tortuosity was obtained by the computation of particles trajectory. After which, constrictivity was deduced from the formation factor, represented by the relative diffusion coefficient. Results show that tortuosity evolves in the opposite direction that the porosity while constrictivity evolves in the same direction. In addition, both parameters further slowdown the transfer for lower porosities. © 2020 Elsevier Ltd
Document type :
Journal articles
Complete list of metadata

https://hal.archives-ouvertes.fr/hal-02932037
Contributor : Accord Elsevier CCSD Connect in order to contact the contributor
Submitted on : Monday, August 22, 2022 - 3:43:08 PM
Last modification on : Tuesday, August 23, 2022 - 3:21:07 AM
Long-term archiving on: : Wednesday, November 23, 2022 - 11:50:49 PM

File

S0735193320303146.pdf
Files produced by the author(s)

Licence


Distributed under a Creative Commons Attribution - NonCommercial 4.0 International License

Identifiers

Citation

Khaled Bourbatache, Fares Bennai, C.-F. Zhao, O. Millet, Abdelkarim Aît-Mokhtar. Determination of geometrical parameters of the microstructure of a porous medium Application to cementitious materials. International Communications in Heat and Mass Transfer, 2020, 117, pp.104786. ⟨10.1016/j.icheatmasstransfer.2020.104786⟩. ⟨hal-02932037⟩

Share

Metrics

Record views

61

Files downloads

3