Rock material (gravel or crushed stone) measuring >4.75 mm that serves as the main frame of the construction structure. In concrete mixtures, this material plays a role in increasing strength, maintaining volume stability, and minimizing shrinkage and cement usage. While in Hotmix Asphalt, coarse aggregate provides an interlocking function to withstand heavy traffic loads, provides resistance to deformation (rutting), and creates a rough road surface texture to prevent slipperiness.
