Experiments studying fracture processes were conducted with specimens of having different ratios of aggregate contents. Compressive loads were applied using a closed-loop controlled servo-hydraulic testing machine. Two dimensional displacement and strain distribution were calculated at various deformation levels. Strain localization and softening were observed for different end conditions. Shear constraint from loading platens affects the strength and failure mechanisms. The material composition of specimens changes the fracture processes and consequently induces different failure mechanisms. The material homogeneity forces cracks to propagate more vertically and behave in a more brittle manner. The non-contact and automated measuring technique used was appropriate to capture and evaluate complex cracking which develops during the strain softening region. Based on the study it appears that this technique can be used to detect damage in concrete structures.