Non-Metallic Composite Repair Systems for Pipes and Pipelines

Traditionally mechanical defects in pipes and pipelines, which have been detected either by working on the pipeline or by intelligent pigging, have been repaired by replacing the defective areas with metallic pipe seg-ments or by welding on metallic sleeves. The use of thermosetting plastics and reinforcing fibres has a long and varied history of being used as a repair material for structural repairs. The fabric options consist primarily of Carbon, Kevlar or Glassfibres, which are bound together and bonded to the pipe with various resin options. Particularly the carbon fibres belong to the state of the art high-tech materials, which due to their outstanding tensile strength and very high stiffness are developing more and more new fields of application.