Patent ID: 6024517
Filing Date: 2000-02-15
Classification: E02D,E04B,E04C,Y10T

Abstract:
A concrete slab for forming blocks for a retaining wall comprising:a prism having parallel top and bottom surfaces, and opposed parallel side walls, and end walls, wherein the prism has an X axis in the longitudinal direction extending between the end walls, a Y axis in the width direction extending between the side walls, and a Z axis perpendicular to the X and Y axes, extending between the top and bottom surfaces, a first dividing line extending parallel to the X axis from one end wall to the other end wall in order to define a separating plane bisecting the prism;at least a pair of second dividing lines each extending parallel to the Y axis of the prism from the first dividing line to one of the opposite side walls, wherein the second dividing lines are parallel to each other but offset therefrom to form blocks in the slab,wherein upon separating the slab along the first and second dividing lines, at least four blocks in the form of prisms having different dimensions in the X axis are produced, andwherein each of the blocks produced in the slab has at least one keyhole opening, each keyhole opening being adapted to receive an abutment member to abut against an adjacent block and provide a slope to the retaining wall.