Abstract
The permeability coefficient, K , of a porous matrix in Darcy's equation of hydraulic conductivity depends mainly on the properties of the solid matrix, e.g., porosity, tortuosity, particle size composition, and shape of grains. The main objective of the present experimental work is to bring out the effects of the uniformity coefficient, U , and the grain effective diameter, D 10, on the permeability of the porous matrix. This experiment modifies the standard permeability equation to take into account the grain effective diameter. Based on the results, it is clear that K increases with increasing of the grain effective diameter, uniformity coefficient, and void ratio.
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