Semi-finished concrete product for making structural walls has two shells held parallel spaced from one another by anchor rods of fibre reinforced plastics with profiling on their surface

摘要

The semi-finished product has two shells (3,4) held parallel spaced from one another by rod-like anchors made of fibre glass reinforced plastics with a constant support cross section over their length and with profiling on their surface. The profiling can be created through sand particles, radially protruding ribs, constrictions or through a cord wound round the anchor. The ends of the anchor taper to a point.