Al-khazraji, H., Benkmoun, N. , Choinska, M. and Khelidj, A. 2022. Numerical Investigation of Aggregates Size and Volume Fraction on Gas Permeability of 3D Meso-Scale Concrete. Misan Journal of Engineering Sciences. 1, 2 (Dec. 2022), 56–62. DOI:https://doi.org/10.61263/mjes.v1i2.24.