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  • Type: Inland waterways
  • Location: Llangollen canal, England
  • Area: 5,000 m²
  • Product: NTP3

A 400 meter section of the Llangollen canal waterproofing system needed renovation due to leaks in the nearly 200-year-old structure. The constraint was to use a product that met the technical and environmental requirements. It was important that the canal did not become a sterile environment. The engineers therefore chose the Coletanche bituminous geomembrane. Another benefit is that it can be installed by local labour and does not require a specialist subcontractor, unlike other systems.

After removing silt (over 90 years of sedimentation!), a drainage layer was laid between two geotextiles and covered with a compacted top layer and COLETANCHE NTP 2.

Coletanche’s benefits for this project were:

  • Robustness, resistance
  • Doesn’t not require protection from UV radiation, mechanical installations or boats
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PROJECTS
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World implantations
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References in more than 70 countries
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30 Million m² laid worldwide
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