Comparing various geomembranes for your upcoming geosynthetic application? Don’t overlook high-density polyethylene (HDPE) geomembrane. HDPE has been doing use for many years and during that period several research has been conducted to check its longevity and talent to fulfill environmental sustainability project requirements. Here, we explore among those studies to examine the advantages of HDPE compared with other geomembranes types such as polyvinyl chloride (PVC).

What makes HDPE Compare With PVC and also other Geomembrane Types?

As a waterproofing liner, a HDPE geomembrane is favored over many other materials for its modest economic and operational advantage. Economically, HDPE geomembrane is superior because of its relatively straightforward manufacturing process, containing driven up supply and kept prices reduced contrast with other forms of geomembranes. As more design engineers become familiar with the pad, growing competence rolling around in its use further promotes its market dominance and economic edge over competing products.

Secondly, HDPE has become favored due to the physical properties. While tests run on PVC and HDPE show very few practical differences, HDPE does often outperform PVC and other geomembranes in areas like resistance to folding damage and dynamic impact. Furthermore, the material is definitely a stable polyolefin that is chemically inert capable to maintain long-term integrity and sturdiness. These properties make HDPE geomembrane a trendy choice to waterproof and seal landfills as well as other containment applications.

HDPE geomembrane may also be manufactured with additives to amplify certain qualities.

How Does the HDPE Geomembrane Help with Environmental Sustainability?

Weighed against other geomembranes, HDPE has the highest theoretical unexposed service life at >100 years. This high service life potential makes HDPE a powerful tool for environmental sustainability efforts including the safe closure of your landfill.

In the case of exposed liner, one study, a HDPE geomembrane subjected to 10 years of ultraviolet radiation and wastewater showed no significant difference in physical properties (e.g., tensile, tear, puncture, and carbon black). The only observed difference was at tensile elongation and melt index, both believed to be due to material cross-linking because of UV exposure. However, sunlight exposure within the 10-year period did little to impact the majority of the material’s properties insomuch it’s nearly indistinguishable from a newly manufactured sample.

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