Concrete block for a retaining wall, having protrusions which mate with an adjacent block and a cavity to receive cement

摘要

Disclosed is a block which includes a front surface, a back surface, a top surface, bottom surface and first and second sides. The first and second sides have respective first and second insets which extend from the block top surface to the block bottom surface. The block also includes a locator protrusion on the top or bottom surface. The locator protrusion is configured to mate with an inset of one or more adjacent blocks. The locator protrusion and the first and second insets having relative sizes and shapes adapted to permit relative rotation of the locator protrusion and the respective inset with which the locator protrusion is mated to enable a construction of serpentine walls from a plurality of the blocks. A depth between the front surface and back surface is less than a height between the top surface and the bottom surface and less than one-half of the width of the front surface. The back surface includes first and second legs which define a pocket therebetween. The pocket is shaped to receive pourable concrete. When a number of the blocks are stacked to form a wall, concrete received in the pocket will cure to lock the blocks in place.