Coming from the crushing of rocks with high resistance to wear. Granular and permeable matter.
Riprap, also known as rip rap, rip-rap, shot rock, rock armor, or rubble, is man-placed rock or other material used to armor shorelines, streambeds, bridge abutments, pilings and other shoreline structures against scour and water, wave, or ice erosion.
A rock is any naturally occurring solid mass or aggregate of minerals or mineraloid matter. It is categorized by the minerals included, its chemical composition and the way in which it is formed.
Derived from the basaltic rock crushing process. Due to their properties they are used for the manufacture of hydraulic concretes, asphalt concretes, hydraulic bases, as well as for construction in general.