Method and apparatus for production of a reinforcement bar

A method for fabrication of a reinforcing blank from a composite material, wherein the reinforcing blank is fabricated of longitudinal fibres and a sheathing layer of a material selected from the group consisting of fibre and foil, and wherein fibre thread is moistened with a binding agent, comprising the following steps:

• reeling the moistened fibre thread onto a rotational plate (12) comprising a number of holding means (14) for fibre threads, to a blank bundle in a closed, approximately circular shape, comprising a layer of desired thickness of longitudinal, parallel fibres, whereby all longitudinal, parallel fibres in the layer achieve approximately equal axial tightening;
• enveloping an outer layer of a material selected from the group consisting of fibre threads, foil/band and mixture thereof, around the layer of longitudinal fibres;
• and
• finishing the fabrication of the prepared blank in a second forming process.