Comparing various geomembranes for your geosynthetic application? Don’t overlook high-density polyethylene (HDPE) geomembrane. HDPE has been doing use for decades and during that time a number of research has been conducted to test its longevity and talent to meet environmental sustainability project requirements. Here, we explore one particular studies to look at some great benefits of HDPE weighed against other geomembranes types like polyvinyl chloride (PVC).
So how exactly does HDPE Look when compared with PVC and 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 thanks to its relatively straightforward manufacturing process, containing driven up supply and kept prices low in contrast along with other kinds of geomembranes. As increasing numbers of design engineers become familiar with the fabric, growing competence rolling around in its use further promotes its market dominance and economic edge over competing products.
Secondly, HDPE continues to be favored because of its physical properties. While tests operate on PVC and HDPE show hardly any practical differences, HDPE does have a tendency to outperform PVC and other geomembranes in areas such as potential to deal with folding damage and dynamic impact. Furthermore, the material is an extremely stable polyolefin that is chemically inert and capable to maintain long-term integrity and sturdiness. These properties make the HDPE geomembrane a popular replacement for waterproof and seal landfills and also other containment applications.
HDPE geomembrane may also be manufactured with additives to amplify certain qualities.
How Does the HDPE Geomembrane Bring about Environmental Sustainability?
In contrast to other geomembranes, HDPE contains the highest theoretical unexposed service life at >100 years. This high service life potential makes HDPE an effective tool for environmental sustainability efforts like the safe closure of your landfill.
In the matter of exposed liner, one study, a HDPE geomembrane exposed to Ten years of ultraviolet radiation and wastewater showed no significant alternation in physical properties (e.g., tensile, tear, puncture, and carbon black). The one observed difference is at tensile elongation and melt index, both regarded as a direct result material cross-linking as a result of UV exposure. However, sunlight exposure over the 10-year period did little to affect the majority of the material’s properties insomuch it had become nearly indistinguishable from the newly manufactured sample.
Case study demonstrates the capable role of HDPE geomembrane in environmental sustainability. Furthermore, it shows that today’s HDPE can be expected to do at the higher-level due to technological improvements in resin stabilization and sheet manufacturing techniques.
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