In this section, the uniaxial compression behaviors of concrete with different cross-section diameters (D = 100, 150, 200, 300, 450 mm), height-diameter ratios (H/D = 1.0, 1.5, 2.0, 2.5, 3.0) and friction coefficients (μ = 0, 0.1, 0.2, 0.3, 0.5, 0.8, ∞) are simulated using the aforementioned verified mesoscale numerical model. As discussed in Section 3, the aggregate distribution affects the compressive strength of concrete, so four concrete samples with different aggregate distributions are
