Bituminous Geomembrane

Bituminous geomembrane, known as BGM liner, is a specialty geomembrane with composite layers that make it stronger, more watertight, and more durable than resin-based geomembranes. Titan proudly carries COLETANCHE® bituminous geomembrane (BGM), a waterproofing system with a unique design featuring a width of 5.10m. This BGM liner consists of an elastomeric bitumen based binder and an internal structure made from non-woven geotextile; designed to guarantee excellent mechanical and chemical resistance over the long term.

COLETANCHE®  BGM liner is available in two different ranges, COLETANCHE®  ES and COLETANCHE®  XP.  Each of these is designed for different applications depending on implementation conditions, granulometry of support surfaces, and climactic constraints. COLETANCHE®  ES RANGE is made from elastomeric bitumen, with high elastic properties, ensuring better resistance at low temperature, higher resistance to UV, and improved durability in exposed situations. COLETANCHE® XP RANGE is a single-structure variation of the ES range that is less thick but made from the same amount of elastomeric bitumen, ensuring the same mechanical and construction performance.

This BGM liner caters to public works, mining, and civil infrastructure construction projects in a wide range of applications from environmental protection to hydraulic structures and transportation. Because it is flexible it can adapt to any ground contour and absorb differential settlement. It can also support ballast, hot asphalt mix, and many other materials without special protection. Additionally, BGM liner can be used in conjunction with concrete, gabions, or rocks. It has a long water tightness life and effectively resists the leaching of contaminants, making it an ideal solution for waste containment.

Over 30 million m² of COLETANCHE® bituminous geomembrane (BGM) has been installed throughout the world to prevent pollution, contain industrial waste, and build on sensitive sites.

Benefits of BGM Liner

  • High puncture resistance.
  • Compatible with all subgrades and covering materials.
  • Can be installed directly over the prepared mineral sealing bottom layer allowing a large cost saving for the ponds.
  • Can remain exposed to the elements.
  • Can be installed at low temperatures such as -40°C.
  • Installation is relatively fast and is less dependent on weather conditions, extending the construction season.
  • Excellent resistance to aging.
  • Resistant to aggressive environments without adding an anti-puncture geotextile.
  • Remarkable dimensional stability and flexibility guaranteeing permanent contact with supporting ground.

Common BGM Liner Applications

  • Mine tailings ponds
  • Mine caps
  • Mine dam raises
  • Biogas barriers
  • Wastewater containment ponds
  • Concrete dams
  • Concrete and earthen canals
  • Settling basins
  • Embankment dams
  • Roadside ditches