Profiler Relining Case Studies

Relining 150mm Blue Mountains Australia

Overview: Pre and post relining profiling to be performed to determine:
1. Deformation (level of ovality)
2. Gaps between host and liner
3. Liner abnormaties

CIPP Relining Failure Concrete Portland USA

Overview: The City of Portland wanted confirmation of how much CIPP liner had distorted after the liner imploded during the installation process. The pipeline in question ran down the middle of a busy road with a gradient of about 10 degrees. The first 300ft (91m) of the pipe was 30" (762mm) at which point the gradient increased and the pipe size reduced to 24" (610mm) for the next 200ft (60m) or so. A loss of pressure in the steam curing process had caused the far end of the liner to implode. Twenty-five meters of the liner had already been removed. This process had taken 72 hours, requiring full flow bypass. Hence, the City of Portland was anxious to obtain an accurate assessment of the extent of the liner deformation.

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