Prestressing steel - Import export

WDI Spannstahl and its subsidiary nedri Spanstaal B.V in Venlo, Netherlands, are among the most important manufacturers of prestressing steel in Europe.The company has a recognised high level of expertise in the field of prestressing steel production. Since its foundation in 1925, NEDRI Spanstaal BV has gained a respected position and excellent reputation in the field of prestressing steel technology in Europe and far beyond.This expertise is a guarantee of top quality and sustainability when using our products for infrastructure projects, for onshore and offshore structures as well as in precast concrete construction. Our dedicated and experienced employees are the foundation for the perfection of our products. NEDRI Spanstaal BV is certified by Lloyd's Register Quality Assurance in accordance with ISO 9001 - 2008 and is a member of ESIS: European Stress Information Service.

This type of joint was specifically designed for highway use within structures creating horizontal movements up to 15 mm and vertical movements up to 5 mm. Due to its characteristics, it can be fitted on any type of structure, whether it is made of reinforced concrete, prestressed concrete or steel. It consists of: • a Hypalon gutter, ending at its extremes with a mesh securing it to the slab; • a neoprene ribbed bulb, of suitable section, resting onto its upper wings on the edges of the slab heads, recessed within the gap. The Hypalon gutter ensures watertightness of the deck and drainage of waters outside of the road bed. It is a seamless type of gutter and it covers the entire road bed with the right slope and it is fixed to the slab by means of a mesh with epoxy adhesive and primer.

 The function of the neoprene bulb is to support the overhanging pavement. JOINT TYPE HEIGHT H (mm) WIDTH *X (mm) GAP *Y (mm) Bulbo piccolo 43 45 Max 20 Bulbo medio 77 80 Max 40 Bulbo grande 90