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Description
High-density polyethylene (HDPE) is the most widely used geomembrane in the world, and is the preferred product for lining projects.
High-density polyethylene (HDPE), commonly used as a geomembrane and is similar to the material used in black polyethylene pipes. It has a broad chemical resistance and excellent UV resistance, but has a lack of flexibility and can develop brittle stress cracking at low stresses if not properly formulated
Advantages of HDPE
It is the most chemically resistant member of the polyethylene family due to its dense configuration.
HDPE is field welded with hot wedge welders and extrusion welders. These factory quality welds are virtually stronger than the sheet itself.
It has the best QC-QA testing capabilities in the market place.
HDPE is Cost Effective! “You don’t have to cover the liner because it is UV stable.”
Method of Installation
The HDPE was supplied in 7m wide rolls of approximately 200m in length. To allow easier installation, reduce labour requirements on site, and reduce the amount of joining in wet and dirty site conditions, some workshop prefabrication was undertaken. Approximately four water authority personnel and three from the supplier were required to install the material, which included welding sections together.
The 200m section was laid and welded in approximately two days. The liner was anchored in trenches along the channel bank and the end treatment utilised geosynthetic clay lining (GCL).
Application of HDPE
Irrigation Ponds, Canals, Reservoirs, & Ditches
Landfills & Canals
Agricultural Applications
Municipal Applications
Aquaculture & Horticulture
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