Geosynthetics August/September 2022 - 15
alternative, especially in the long term,
than traditional waterproofing materials,
which do not always solve potential problems.
These can include small fissures
in the slab caused by soil settlements on
the foundation, excess weight or even
earthquakes; such microfractures are
almost impossible to perceive, but they
are water filtration points that can cause
serious problems.
Using a geomembrane as a waterproofing
system, independent to the slab
(floated system, not adhered), will prevent
water or some fluid leaking. This
is because geomembranes are synthetic
waterproof monolithic sheets. In addition,
geomembranes work as an anti-root
barrier, preventing roots from creating
cracks or structural damage, something
that traditional waterproofing typically
cannot achieve.
The waterproofing system with geomembrane
is considered permanent,
since its correct installation can be corroborated
with a system for electrical
conductivity tests:
* Electric charge, capable of detecting
imperceptible perforations
* Negative pressure, performed in
extrusion welds
* Pressured air channel, in thermofusion
welds
Geocomposites
Geocomposites are used on green rooftops
as drainage systems. Their function
is to efficiently evacuate fluids, since they
create a ratio of voids greater than that
found within the soil. They are designed
to be able to handle large pressure loads
without affecting their draining capacity.
There are several advantages to using
geocomposites as drainage systems on
rooftops. They significantly reduce the
costs of storage and placement of materials,
prevent flooding, do not require
specialized labor for their proper installation,
and reduce the time of placement
compared to other drainage systems. In
addition, geocomposites are a very light
material made from polymers, avoiding
the traditional and heavy stone system
for drainage. Geocomposites allow
water to run quickly and efficiently while
retaining the fine soil particles, so that the
drainage network that goes in the middle
does not clog.
Geotextiles
Geotextiles work as a soil separator to
maintain integrity and proper functioning
between the different layers of the
soil. It also serves as a filter for existing
fluids by allowing the passage of fluids
but not solid particles.
Geotextiles are materials that help
prevent the migration of fine soils within
the granular and this contributes to maintaining
its function, such as drainage,
structural or finishing.
To choose the right geotextile, it is
important to consider various factors: the
mechanical and physical characteristics
of the terrain and the filling material, size
FIGURE 2 2,260 square foot (210 m2)
intensive green roof north Mexico City
FIGURE 3 10,441 square foot (970 m2) extensive green roof on a corporate building
GeosyntheticsMagazine.com
15
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Geosynthetics August/September 2022
Table of Contents for the Digital Edition of Geosynthetics August/September 2022
Geosynthetics August/September 2022 - Cover1
Geosynthetics August/September 2022 - Cover2
Geosynthetics August/September 2022 - 1
Geosynthetics August/September 2022 - 2
Geosynthetics August/September 2022 - 3
Geosynthetics August/September 2022 - 4
Geosynthetics August/September 2022 - 5
Geosynthetics August/September 2022 - 6
Geosynthetics August/September 2022 - 7
Geosynthetics August/September 2022 - 8
Geosynthetics August/September 2022 - 9
Geosynthetics August/September 2022 - 10
Geosynthetics August/September 2022 - 11
Geosynthetics August/September 2022 - 12
Geosynthetics August/September 2022 - 13
Geosynthetics August/September 2022 - 14
Geosynthetics August/September 2022 - 15
Geosynthetics August/September 2022 - 16
Geosynthetics August/September 2022 - 17
Geosynthetics August/September 2022 - 18
Geosynthetics August/September 2022 - 19
Geosynthetics August/September 2022 - 20
Geosynthetics August/September 2022 - 21
Geosynthetics August/September 2022 - 22
Geosynthetics August/September 2022 - 23
Geosynthetics August/September 2022 - 24
Geosynthetics August/September 2022 - 25
Geosynthetics August/September 2022 - 26
Geosynthetics August/September 2022 - 27
Geosynthetics August/September 2022 - 28
Geosynthetics August/September 2022 - 29
Geosynthetics August/September 2022 - 30
Geosynthetics August/September 2022 - 31
Geosynthetics August/September 2022 - 32
Geosynthetics August/September 2022 - 33
Geosynthetics August/September 2022 - 34
Geosynthetics August/September 2022 - 35
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Geosynthetics August/September 2022 - 41
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Geosynthetics August/September 2022 - 44
Geosynthetics August/September 2022 - Cover3
Geosynthetics August/September 2022 - Cover4
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