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The Advantages and Disadvantages of HDPE Geomembrane Liner

19 janv. 2022 à 6h11   Audi   Saint-Maur-des-Fossés   13 vues
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To build a pond, landfill, dam, or lake, and so on, the first thing is to choose the waterproof impermeable liner. But, there are many kinds of flexible liners — often called “geomembranes”. Your liner should stay stable under the hottest and coldest temperatures your area may experience, and it should not be damaged, punctured, or torn as the objects or irregularities. If the liner is exposed, it must be anti-UV.

Chemical resistance, flexibility, the cost can all vary as well. For these reasons, it is better to know a little about different liner materials before you invest.

HDPE Geomembrane (High-Density Polyethylene Geomembrane)

HDPE Geomembrane Liner has a very good UV resistance and functions well in cold temperatures. It is also strong and very stiff. HDPE Geomembrane Liner’s most desirable characteristic, though, might be its superior resistance to a wide range of chemicals. With its cheap price and the fact that many sheets can be joined using a welding machinery and accessories, HDPE Geomembrane become one of the most popular geomembrane types worldwide. HDPE Geomembrane Liner is used for landfills and chemical containment projects, but it is also safe and well-suited for fish ponds.HDPE Geomembrane Liner is very durable, the life can last upwards of 50 years when covered.

Unfortunately, HDPE Geomembrane Liner is far from perfect, Because it is stiff and heavy, HDPE Geomembrane Liner may be expensive to ship and can’t be customized shaped or assembled in a factory. Instead, you’ll have to pay extra installation costs to install on-site by professionals. These expenses make HDPE Geomembrane Liner most cost-effective for larger projects.

HDPE Geomembrane Liner’s lack of flexibility can also make installation more difficult, You must be careful when installing the HDPE Geomembrane Liner on the rough subgrade, since the material is vulnerable to punctures, and surface scratches that can become cracks over time.

HDPE Geomembrane Liner Advantages:

Excellent chemical resistance

Good UV resistance

Cheap

Weldable

Fish safe

Very durable

50years lifespan when covered

Performs well in cold temperatures

HDPE Geomembrane Liner Disadvantages:

Poor flexibility

Heavyweight makes it more expensive to ship, difficult to install

Less custom fabrication; welded on-location

Poor resistance to stress cracking

Comparing various geomembranes for your next geosynthetic application? Don’t overlook high-density polyethylene (HDPE) LLDPE geomembrane. HDPE has been in use for decades and during that time a number of studies have been conducted to test its longevity and ability to meet environmental sustainability project requirements. Here, we explore some of those studies to examine the benefits of HDPE compared with other geomembranes types such as polyvinyl chloride (PVC).

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