Molded block e.g. concrete-molded block for use in manufacture of pavement, has main portion that is included with rotational symmetry and groove structure that is not included with rotational symmetry

摘要

The block (10) comprises a top surface (12), a bottom surface (16) and three side surfaces (14.1-14.4) that are arranged to form a prismatic main portion (18). A groove structure (24) having multiple prismatic grooves (26.1-26.3) is formed in the bottom surface for increasing a sliding resistance of the main portion. The main portion is included with 180 [deg] rotational symmetry and the groove structure is not included with 180 [deg] rotational symmetry. The grooves are not merged into the side surfaces of the molded block. The distance between the grooves is different from each other. An independent claim is included for a pavement.