Figure 2
The vertically arranged laboratory apparatus shows labelled components. A plastic funnel is positioned at the top. A level ruler rests horizontally beneath the funnel. A discharge valve is located below the funnel outlet. A vertical acrylic tube extends downward through the centre. The structure is supported by a polyvinyl chloride frame with vertical and horizontal pipes. A triaxial mould is placed at the base inside the frame. A box to collect spheres is positioned beneath the mould.Setup of the sample preparation system