Geosynthetics June/July 2022 - 32

Aboveground storage tank liners for energy applications
chemical compatibility, potability, color,
life span desired and disposal/recyclability.
Modern liners have evolved over the past
50 years in reinforced and nonreinforced
variants. Polymers can range from polyvinyl
chloride (PVC) and polyethylene (PE)
to bitumen materials and various other
polymers in between, including tripolymer
for specialty applications.
Dating back 35 years, the most comFIGURE
5 AST failure load point
liner or settling of the subgrade can lead
to failures of the liner at the point of the
wall transition to the ground, or failure
load point, as shown in Figure 5.
To minimize the risk of a failure load
When designing
a liner for an AST,
engineers consider
the strength of the
products, chemical
compatibility,
potability, color, life
span desired and
disposal/recyclability.
point, after unfolding the tapered liner
inside the AST, 1 to 2 feet (0.3 to 0.6 m)
of water is added to achieve the correct
load point before clamping at the top of
the tank. Lessons learned also include the
necessity for filling the lined AST with the
intended liquid within a short time. Empty
tanks are susceptible to shifting of the liner
due to wind, thermal expansion and contraction.
The shifting is rarely realigned
before introducing product or fluids, leading
to increased risk to liner and project
integrity. Fortunately, years of trial and
error have led most producers and installers

Geosynthetics June/July 2022

Table of Contents for the Digital Edition of Geosynthetics June/July 2022

Geosynthetics June/July 2022 - Cover1
Geosynthetics June/July 2022 - Cover2
Geosynthetics June/July 2022 - 1
Geosynthetics June/July 2022 - 2
Geosynthetics June/July 2022 - 3
Geosynthetics June/July 2022 - 4
Geosynthetics June/July 2022 - 5
Geosynthetics June/July 2022 - 6
Geosynthetics June/July 2022 - 7
Geosynthetics June/July 2022 - 8
Geosynthetics June/July 2022 - 9
Geosynthetics June/July 2022 - 10
Geosynthetics June/July 2022 - 11
Geosynthetics June/July 2022 - 12
Geosynthetics June/July 2022 - 13
Geosynthetics June/July 2022 - 14
Geosynthetics June/July 2022 - 15
Geosynthetics June/July 2022 - 16
Geosynthetics June/July 2022 - 17
Geosynthetics June/July 2022 - 18
Geosynthetics June/July 2022 - 19
Geosynthetics June/July 2022 - 20
Geosynthetics June/July 2022 - 21
Geosynthetics June/July 2022 - 22
Geosynthetics June/July 2022 - 23
Geosynthetics June/July 2022 - 24
Geosynthetics June/July 2022 - 25
Geosynthetics June/July 2022 - 26
Geosynthetics June/July 2022 - 27
Geosynthetics June/July 2022 - 28
Geosynthetics June/July 2022 - 29
Geosynthetics June/July 2022 - 30
Geosynthetics June/July 2022 - 31
Geosynthetics June/July 2022 - 32
Geosynthetics June/July 2022 - 33
Geosynthetics June/July 2022 - 34
Geosynthetics June/July 2022 - 35
Geosynthetics June/July 2022 - 36
Geosynthetics June/July 2022 - 37
Geosynthetics June/July 2022 - 38
Geosynthetics June/July 2022 - 39
Geosynthetics June/July 2022 - 40
Geosynthetics June/July 2022 - 41
Geosynthetics June/July 2022 - 42
Geosynthetics June/July 2022 - 43
Geosynthetics June/July 2022 - 44
Geosynthetics June/July 2022 - Cover3
Geosynthetics June/July 2022 - Cover4
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