Won't fail due to stress cracking

Environmental stress cracking of HDPE is a major concern for designers.
 
Unlike HDPE which has a rigid crystalline structure, BGMs have a flexible rubbery structure.
 
BGMs will maintain their flexibility and remain relaxed – free of induced stresses – for many decades of service, eliminating the stress cracking problems inherent in other lining systems.
 
Wrinkles present in BGM installations, while aesthetically unpleasant, pose no long term concern to the integrity of the liner, unlike plastic geomembranes.
 
If subsequent geosynthetic layers are to be installed, on top of a BGM with wrinkles, any wrinkles in BGMs can be simply folded down as BGMs never stress crack.

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