SEPARATION LAYER FOR APPLYING GRASS-SURFACES ON SAND- AND/OR GRAVEL-GROUND

摘要

the separation layer (12) is used to cause grassland (10, 16) on the basis of a sand or gravel layer (13), and is in the form of a rigid plastic sheet having parallel lateral edges. the surface of the sheet is dented by forming, in order to provide a uniform configuration of bosselages deep (14).this is row extending at right angles to the lateral edges. the parallel rows are respectively connected to the bosselages adjacent the row via bridges (15), so that each row of bosselages cooperating with adjacent rows, is a strengthening of the leaf.