Geomembranes
Geomembranes are a very low permeability synthetic membrane
liner or barrier used with any geotechnical engineering related
material so as to control fluid migration in a human-made
project, structure or system. The primary function of geomembrane
is always as a barrier against liquids or vapors. Geomembranes
are made of various materials. Some common geomembrane materials
are Polyvinyl Chloride (PVC), High-Density Polyethylene (HDPE),
Low-Density Polyethylene (LDPE) and Polypropylene (PP).
Polyethylene geomembranes are part of one of the most sophisticated
and effective impervious system known to date. It was developed
exclusively to reduce the hydraulic conductivity of earthworks.
It is also very reliable in exposed environments on account
of a superior protection against UV degradation and of their
excellent low temperature brittleness resistance.
As specified by engineering design, geomembranes are manufactured
in wide rolls and come in varying thickness ranging from 0.5
to 2.5 mm (20 to 100 mil).
Geomembranes are part of the geosynthetics family and are
solutions chosen by general contractor, government, engineers
and by companies seeking the highest degree of imperviousness,
in an effort to minimize the impact of their development activities
on the environment.
Surface finish
Polyethylene geomembranes come in a variety of surface
finishes, from smooth, textured one side to heavily textured
both sides. Textured materials are preferably used when lining
steep slopes to prevent slippage of adjacent material, due
to its higher friction properties. The asperity height describes
the level of texturing which can range up to 0.25 mm (0.10
mil).
Installation
To install geomembranes on impervious systems, the rolls
are unrolled and the seaming is done by thermal fusion or
extrusion welding with no foreign material additives used.
Geomembranes are commonly used in petroleum, mining, landfill,
water and capping applications. By preventing any ground contamination
from chemical products, leachate solution or any other substance,
its preserves our waterways and open spaces.
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Mission 
