Coletanche provides optimal protection against seasonal, accidental, and chronic pollution and is also well-suited to minimise the impact of road construction projects in ecologically sensitive areas.

More specifically, Coletanche GC is a waterproofing system using a bituminous geomembrane for underground works, under the Technical Assessments from the CETU (n° 15-001). It allows eliminating the risk of infiltration of natural ground water into underground structures: cut and cover trenches, vaulted works …

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Environmental protection
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Hydraulic structures
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