TERRADRAIN® geocomposites
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TER
RA
DR
AIN
® g
eoco
mp
osi
tes
2
Introduction ____________________________________________ 3
Certification ____________________________________________ 4
What is TERRADRAIN® ? ___________________________________ 5
Why use TERRADRAIN® ? __________________________________ 5
Performance comparison charts ___________________________ 6
TERRADRAIN® M _________________________________________ 7
TERRADRAIN® W _________________________________________ 8
TWINDRAIN® ____________________________________________ 9
Applications summary ___________________________________ 10
TERRADRAIN® for roof gardens ___________________________ 11
TERRADRAIN® for sunken structures _______________________ 14
TERRADRAIN® for outdoor surfaces _______________________ 15
Complementary drainage products _______________________ 16
Ind
ex
3
Water is a vital part of our daily lives.
Throughout history, the management of water resources has always
been closely linked with the evolution of society.
The great civilisations of the past have left a legacy of important
techniques for water management, from agricultural irrigation and
supply pipelines to preserve this valuable commodity.
Despite the forces of nature often conspiring to undermine man’s
attempts to harness water, man has also developed knowledge of
drainage; controlling water and its sometimes unpredictable and
destructive effects.
Drainage refers to the techniques which control the flow and
distribution of excess water, thereby maximising the benefits and
minimising its negative effects. The risks of poor drainage are proven:
With over 30 years’ experience and product development,
drainage geocomposites
can replace traditional granular materials, offering clients many
benefits: time, cost, safety, reliability and environmental footprint.
Introduction
4
Certification
geosynthetics used in drainage systems and the tests for mechanical, durability and hydraulic performance.
research, development and production are carried out to the highest standards.
5
Evolved over 30 years of experience and research into geosynthetic drainage
to the unpredictable and potentially destructive nature of water.
high voids ratio, is enclosed between two filtering nonwoven geotextiles.
double cusp:
TERRADRAIN® MFor maximum drainage capacity
performance
For guaranteed performance under
high or concentrated loads
to a natural aggregate solution offering the same performance.
movements for extraction and delivery.
The drainage core is available with:
parallel channel:
TERRADRAIN® W
What is TERRADRAIN® ?
Why use TERRADRAIN® ?
6
applied loadkPa
unit
wat
er fl
owlit
ers/
min
per
met
er o
f wid
th
applied loadkPa
unit
wat
er fl
owlit
ers/
min
per
met
er o
f wid
th
Performance comparison charts
m/s
m/s
m/s
m/s
Vertical drainage capacity
Horizontal drainage capacity
6
Comparing Horizontal drainage performance of TERRADRAIN® with 1m thickness of good quality gravel:
At 20kPa, Terradrain M drains up to 30x more water.
At 100kPa, Terradrain M drains up to 4x more water.
At 50kPa, Terradrain W drains up to 15x more water.
At 200kPa, Terradrain W drains up to 9x more water.
7
Advantages
traditional systems
consumption of natural resources
for rapid installation
at contact points forming a three dimensional matrix with a symmetric and cuspated structure, thermally coupled to(3 different versions):
The geocomposite will have the following characteristics:
Main applications House building
Drainage capacity obtained with soft/stiff contacts.
Horizontal drainage capacity corresponds to a gradient i=0.03
Properties Test Unit
version a c
type M1181
mass per unit area g/m 770
mm
l/m.s 0,70 0,70
l/m.s 0,03 0,03 0,07
l/m.s 3,00
l/m.s 0,30 0,30
Unit
version a c
type M1181
role length m
role width m
TERRADRAIN® M
geotextile, or with one geotextile and one laminated fabric to provide a barrier function.
8
Advantages
traditional systems
consumption of natural resources
for rapid installation
(3 different versions):
The geocomposite will have the following characteristics:
Main applicationsHouse building
Drainage capacity obtained with soft/stiff contacts.
Horizontal drainage capacity corresponds to a gradient i=0.03
TERRADRAIN® W
geotextile, or with one geotextile and one laminated fabric to provide a barrier function.
Properties Test Unit
version a c
type
mass per unit area g/m 770
mm
l/m.s 0.37 0,37
l/m.s
l/m.s 0,70 3,00
l/m.s
Unit
version a c
type
role length m
role width m
9
Advantages
compared to traditional
systems
reduced consumption
of natural resources
trench does not need to
monofilament core, connected to two nonwoven polypropylene geotextiles.
A pocket is provided suitable for receiving a perforated drainage pipe.
The interior of the pocket will have a geotextile filter to ease the insertion of the pipe and a preinserted string to pull a
pipe through the pocket.
Main applicationsHouse building
Farming and Agriculture
TWINDRAIN®
Drainage capacity obtained with soft/soft contact.
Properties Test Unit
type
mass per unit area g/m
mm
max pipe diameter mm
l/m.s
Unit
type
roll length m
roll width m
accommodate a drainage collection pipe.
10
TERRADRAIN® W 1041TERRADRAIN® W 1051TERRADRAIN® W 1081TERRADRAIN® W 1060TERRADRAIN® W 1080
TERRADRAIN® W 108M
TERRADRAIN®M 1121TERRADRAIN® M 1181TERRADRAIN® M 1201TERRADRAIN® M 1120TERRADRAIN® M 1200
TERRADRAIN® M 120M TWINDRAIN® G100TWINDRAIN® G200
green roofs
external decks
parking decks
foundations
underground
pressure relief
draining sets
external planters
internal planters
synthetic grass
draining
parking decks
agricultural
drainage
APPLICATIONS
PR
OD
UC
TS
11
TERRADRAIN® for roof gardens
Green roof benefits
Aesthetic and Environmental
Return of investment
active surfaces, they contribute to the environmental balance of the zone. The use of development land can be
optimised as a result.
Technological
Green roof construction with traditional materials
structures. From top to bottom, the traditional construction is:
and local climate.
depth of soil, plants cultivated and roof drainage system in place. The gravel is sandwiched between separation/
filtration geotextiles.
waterproof itself, but can be mineral wool or other materials of appropriate compressive strength.
roofroof
vegetationvegetation
humushumus
extruded polystyreneextruded
polystyrene
nonwoven geotextile
waterproofing membrane
waterproofing membrane
metal gutter
metal gutter
gravel
gravel
nonwoven geotextile
nonwoven geotextile
1/3
12
construction referred to previously.The development of modern construction materials
these traditional methods.
A modification in the drainage layer to remove the
construction thickness The gravel layer is heavy requiring suitable
supporting roof structure
consistent with the ambition to improve the environmental footprint of the structure
can present handling problems on site
design and installation to avoid overloading the insulation and waterproofing layers
Distribution and storage of the gravel on site can result in safety considerations
Accurate permeability of gravel cannot be determined and hence design parameters are less straightforward to identify
on the product selected) of the gravel, potentially enabling savings in the roof structure.
Quick and easy to install
A performance example:
(according
Rain
intensity
3% pitched roof length (m)
11 17
0,33
0,37 0,77
0,73
hydraulic gradient 0,03
load 20 kPa
0,70 l/ms
In this matrix rain/length it is easy to deduce the flow rate to be drained
in l/sec for 1 meter of length.
The different colors respectively indicate:TERRADRAIN® M1121 sufficient
TERRADRAIN® M1201 necessary
flow rate too high for only one composite
TERRADRAIN® for roof gardens 2/3
1313
1. Place the geocomposite sheets side by side and secure them
provisionally before covering them with soil.
2. It is important to overlap the edges of the geotextile to prevent
blockage of the drainage core.
bottom edge
top edge
covering soilcovering direction
layer can be installed beneath the first, to provide this water storage. Without this, the plant roots would be within the
retained water, potentially harming the plant.
support a soil layer for planting, a block pavement for pedestrians or vehicles, or foundations for architectural elements.
Installation
TERRADRAIN® for roof gardens 3/3
144
Any element built in direct contact with the ground requires proper protection against water to maintain its properties
and expected design life.
TERRADRAIN® for sunken structures
installed upon
the structure
provides a robust,
tested solution
to channel
water within the
away from the
structure.
bust,
n
the
e
waterproofing
membrane
drainage
pipe
(rather than in ver tical str ips) , for even more rapid installation.
Installation
1. Secure the product at the top of the wall or element using wall plugs, nails, adhesive or sacrificial wooden
battens. Overlap the geotextile at the top of the composite to enclose the drainage core
2. Unroll the TERRADRAIN® down the wall maintaining close contact with the insulation/waterproofing,
until the drainage pipe at the base of the wall is covered
3. Backfill with soil and compact in accordance with project requirements and whilst avoiding damage to
the composite. Note that inappropriate backfill (angular/sharp) with dimensions 25 mm could damage
the composite.
1
2
3
1515
TERRADRAIN® for outdoor surfaces
pavement, insufficient drainage can place the
drainage core is protected by textile filters, preventing
clogging and soil movement.
interlocking blocks
sand bedding
foundation
W provides optimum drainage even under heavy
or concentrated loads. This rigid core also ensures
compression of the product, and therefore the entire
construction, is negligible.
Any element built in direct contact with the ground
requires proper protection against water, to maintain
its properties and expected design life.
Installation
1. Place the geocomposite sheets side by side and secure them provisionally,
before covering them with soil.
2. It is important to overlap the edges of the geotextile to prevent blockage
of the drainage core. bottom edge
top edge
covering soilcovering direction
16
Complementary drainage products
Description
Thickness
mm
Mass per
Unit area
Roll
Dimension
m
needle punched
needle punched
needle punched 300
needle punched 3
needle punched
GNT PET-A®
drainage and protection.
and geotechnical works.
Description
Tensile
Material
Roll
Dimension
m
MACTEX® W1
Woven geotextile made from polypropylene strips woven in two orthogonal
directions.
load spreading.
17
Complementary drainage products
Description
Dry
thickness
mm
Mass per
Unit area Index
Roll
m
Roll
length
m
MANTOBENT®
needle punching fibres, passing from the upper layer to the lower one.
Description
Roll
Dimension
m
Compression Mass per
Unit area
Rolls
per pallet
n°
per pallet
m
ECODRAIN®
cones, suitable for the function of protecting underground structures.
* Available width: 1 m - 1,5 m - 2,4 m - 3 m.
PAVITER 8GREEN®
Description
Dimension
Module surface
cm
Mass per
Unit area
Module surface
Compression Quantity
per pallet
m
18
Complementary drainage products
MEMBRANA ECOLOGICA NERA
waterproofing applications such a basins and temporary covers in the construction
DescriptionThickness
mmPolymer Width
m m
0,30
JUNIFOL®
waterproofing, such as landfills, encapsulation cells and reservoirs.
DescriptionThickness
mmPolymer
Roll
Dimension
m
R llll
ITALFOIL®
water collection basins.
Description
Thickness
mm
Mass per
Unit area Width
on demand
on demand
700 on demand
on demand
reinforced borders and buttonholes
19
Complementary drainage products
Description
External
diameter
mm
Internal
diameter
mm
Roll
length
m
Collection
surface
cm
ITALFLEX® COR TD
to prevent build up of sediment.
R llll C llll ti
Description
External
diameter
mm
Internal
diameter
mm
Roll
length
m
Collection
surface
cm
ITALFLEX® COR TD TNT
internal surface, within a geotextile sock.
R ll C ll ti
Description
External
diameter
mm
Thickness
mmlength
m
3,3
3,7
ITALDREN® N
* Tube with longitudinal grooves ** 6m long tube with threaded junction (male/female)
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