Abstract: A wall exposed to wear has a wear lining composed of a number of juxtaposed wear lining elements of an elastomeric material or of a mix of elastomeric and other wear-resistant materials. The wear lining elements are secured to a supporting surface with fastening means. Two opposite narrow faces of the wear lining elements have V-shaped recesses, which open toward the narrow faces. The fastening means have washers with V-shaped projections, the V-legs of which are inserted into and abut against the bottom wall of the recesses or into shoulders formed in the recesses, after fastening the elements.