Property

Soil material

A1

E2

Unit weight of grains γ_s [t/m³]

2.65

2.65

Minimum porosity n_min

0.40

0.27

Maximum porosity n_max

0.52

0.40

Coefficient of uniformity C_u = d₆₀/d₁₀

2.10

13.9

Coefficient of curvature $C_c=d_{30}^2/\left(d_{10}\times d_{60}\right)$

1.00

6.70