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Installation Procedures / Large Profile Rehabilitation

Mounting respectively lining procedures are suitable for the maintenance of accessible sewers. In the so-called mounting procedure, pipe segments or special shape segments such as egg shapes, box shapes or kite shapes as massive module respectively divided elements are inserted via building pits into the duct to be rehabilitated.

With the fit-up aids the segments are brought to the working face and then assembled to a pipe run. As soon as the pipe run has been fixed in its position, the ring gap is backfilled with a filling material with a high flowability. Pipe materials such as glass fibre reinforced polyester resin (GRP), polyethylene (HDPE) or concrete polymer are utilised.

One of the advantages of this procedure is a high resistance to aggressive sewage. In addition, a connection to reaches with pipes lined with HDPE or GRP is easily feasible.