Trenchless replacement of gas and potable water pipes with new PA 12 pipes applying the pipe bursting method

ABSTRACT: Pipe Bursting offers a real technical and cost-efficient alternative to the open trench method; it is also very effective when compared to other alternative pipe rehabilitation methods. Pipes made from Polyamide 12 (PA 12) extend the area of application for trenchless technologies, pipe bursting in particular. Polyamide 12 pipes showed that problems like point loads and crack growth resistance can be solved. A field test in Dortmund showed that the handling of PA 12 pipes is as easy as the pipe cracking with PE.