What Is HDPE Geomembrane? Types and Applications
What Is HDPE Geomembrane? HDPE geomembrane is a geosynthetic product made from polyethylene polymer resin. The polyethylene used is high-density, with a density of around 0.94 g /cm3. Geomembrane, also known as HDPE tarpaulin, is impermeable to water and gas. This impermeability is widely used by construction professionals to contain wastewater or raw water as […]
Geomembrane Tips for Expansive Soil
In construction, damage is often caused by movement of the subgrade or an unstable foundation area, which is where geomembrane for expansive soil can help. Foundations are usually unstable because construction does not meet standards or because of clay soil. Clay is a type of expansive soil. Expansive soil swells when saturated with water and […]
Geomembrane Tips for Small Reservoirs (Embung)
Geomembrane is a geosynthetic product that is impermeable. Geomembrane is generally used to line storage facilities so that liquids do not seep into embankment fill and the like, which makes geomembrane for small reservoirs (embung) a common application. In general, geomembrane for storage facilities such as an embung (small retention reservoir) should be ≥ 1 […]
Geomembrane Seam Failure and Welding Tests
Geomembrane is a geosynthetic product that is impermeable. In general, geomembrane must be seamed to prevent leaks at the overlaps, and geomembrane seam failure is a common cause of leakage. Geomembrane seams are divided into 3 types: Single Hot Wedge, Double Hot Wedge and Extrusion Fillet. Geomembrane seams can be damaged or fail. It is […]
HDPE Geomembrane Standards for Aquaculture
The types of geomembrane commonly used for ponds are HDPE (High Density Polyethylene) and LLDPE (Linear Low Density Polyethylene) geomembranes. An HDPE geomembrane for aquaculture is a sheet made from high-density polyethylene plastic with a flexible and waterproof structure. HDPE geomembrane used in aquaculture helps reduce the build-up of organic material on the pond bottom. […]
How to Connect a Geomembrane to a Pipe
Question: How do you connect a geomembrane to a pipe?Answer: ASTM D6478 provides guidance on how to connect geomembrane to pipe. “Pipe boots are fabricated from geomembrane, and the pipe boots are then joined to the geomembrane by extrusion welding.” The geomembrane is then connected to the pipe using a clamp and rubber gasket. Below […]