Coloured Stay Pipe for Stay Cable Systems

Product name: Coloured stay pipe for stay cable systems.

Product description: This EPD covers the life-cycle analysis of the Coloured stay pipe. The Stay pipe structure is made of two coextruded HDPE layers and an helicoidal rib welded over the external layer. The standard product has black HDPE in the internal layer and a coloured external layer and rib.

Figure 2. Structure of Coloured stay pipe

The stay pipe provides the stay cable system with an external protection against environmental and mechanical effects by fully encasing tension elements over the complete stay cable system’s free length. 

VSL Stay cable technology has, following, mainly systems, that use stay pipe to protect tension elements: 

• SSI 2000. VSL standard system. 

• SSI 2000C. A compact stay cable system with reduced cable diameter and therefore reduced wind drag. 

• SSI 2000D. Extra-Protected against corrosion by dehumidification techniques.  

• SSI 2000 Saddle. A patented design facilitating simplified pylon layouts resulting in enhanced bridge aesthetics and increased structural efficiency. 

• MSI 2000, a patented heavy duty stay cable system particularly developed for hangers of arch bridges and stay of suspended roofs.