The Fastening Point

The elements are fastened via the frame and formwork lining; this is where the greatest loads occur during assembly. In order to avoid the spacer damaging the plywood, the wood is cut away in this area. An aluminum protector inserted from the rear functions as a support surface: the formwork lining is protected and the fastening points remain neatly circular even after intensive use.

A further benefit is that holes which are not required for fastening can be closed up neatly, reducing the print left on the concrete to a bare minimum.