Coletanche Review

Due to the mineral surface coating and the nature of the bitumen mix, Coletanche has excellent resistance to UV radiation, allowing for long-term exposed applications without the need for a protective cover soil.

| Feature | Coletanche (BGM) | High-Density Polyethylene (HDPE) | | :--- | :--- | :--- | | | Bitumen & Geotextile | Polyethylene | | Hydrocarbon Resistance | Excellent (Inert to oils/fuels) | Poor to Moderate (May swell/degrade) | | Puncture Resistance | High (Reinforced) | Moderate (Requires high thickness) | | Installation | Torching (Self-adhesive melt) | Hot Wedge/Extrusion Welding | | Subgrade Prep | Moderate requirements | High (Smooth surface required) | | UV Resistance | Good (Can be exposed) | Poor (Requires cover soil) | | Cost | Higher material cost | Lower material cost | coletanche

In the mining industry, containment of toxic tailings and preventing leakage into groundwater is crucial. Coletanche is frequently used for lining tailing dams, heap leach pads, and contaminated soil storage areas. Its toughness allows it to handle the heavy traffic and harsh conditions found on mining sites. 2. Water Management and Hydroelectric Power Due to the mineral surface coating and the

Coletanché is a flexible, waterproof, and durable geomembrane composed of a bitumen-based material. It is designed to prevent water infiltration and soil contamination in various applications, including: Its toughness allows it to handle the heavy

Coletanché exhibits the following key properties:

| Property | Coletanche (Bituminous) | HDPE | PVC | |----------|------------------------|------|-----| | | Yes | No | No | | Flexibility at -20°C | Excellent | Poor (stiff) | Good | | UV resistance | Good (with coating) | Excellent | Moderate | | Hydrocarbon resistance | Excellent | Good | Poor (swells) | | Installation | Thermal welding or adhesive | Thermal fusion | Solvent/thermal | | Repairability | Easy (heat torch) | Difficult (requires patch) | Moderate |

October 26, 2023 Subject: Technical Overview and Applications of Coletanche