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It was formed millions of years ago through the aqueous deposition of volcanic ash.
- Over 200 million square metres have been installed Europe wide in the last 10 years.
- Ponds (stormwater, municipal and industrial wastewater, coal combustion wastes, agricultural waste, etc.)
- Landfills (bottom liners and final covers)
- Secondary containment
- Engineered remedial barriers
- Mining (heap leach pads, tailings impoundments)
technical data sheet
a bit about our ponds
Speed/Ease of Installation
- Typical GCL installation rates of 1 to 2 acres per day for a five-man crew, with limited heavy machinery
- Typical 2-ft thick compacted clay liner installation rates vary widely, typically no more than 1 acre per day with typical equipment consisting of excavator, compactor, bulldozer, water truck
- GCLs offer a preferable working surface for deploying and welding the overlying geomembrane
- Less truck traffic, safer operations
- Shorter construction schedule
- GCLs take up less volume in landfill, allowing more room for waste (1 cm versus 0.6 or 1 m)
“Bentoknight” is a Bentonite Clay Liner made up of sodium bentonite clay held together in a sandwich of non-woven and woven geotextiles. When hydrated, unconfined bentonite can swell to 15 times its dry value and can self-heal when punctured making this a fantastic choice for a long lasting solution which does not require specialist welding.
Why is Bentoknight a good liner material?
- It swells when hydrated
- Bentonite swells up to 15 times its original volume if unconfined.
- Bentonite expands and conforms to irregular surfaces, penetrations, and infiltrates cracks and voids.