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©
2001, 2002 Hyperactive
Technology |
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Erosion |
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Soil
Filled TRM |
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Non
Soil Filled TRM |
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Landlok
TRM1060 Installation |
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Landlok
TRM450 Installation |
Turf
Reinforcement Matting
LANDLOK®, Turf reinforcement is a method or system by which
the natural ability of plants to protect soil from erosion is enhanced
through the use of geosynthetic materials.
Laboratory tests have proven that reinforced systems can provide up
to twice the erosion protection of un-reinforced vegetation.
LANDLOK® three-dimensional turf reinforcement mats (TRM's) are composed
of UV stabilised, non-biodegradable, polyolefin fibres mechanically
bound between two high strength biaxially oriented nets.
LANDLOK TRM's are designed to provide superior initial erosion protection,
rapid vegetative establishment and outstanding long term erosion resistance.
Landlok TRM1060
Consists of a lofty three-dimensional web of black polyolefin fibers
positioned between two high strength, biaxially oriented nets mechanically
bound together by polyolefin stitching to form a dimensionally stable
matrix.
Landlok TRM1060 has sufficient thickness (17mm) and void space (>90%),
balanced with optimal ground cover to allow soil filling and/or retention
as well as emergence of plants from beneath or within the matrix.
Soil, the "quintessential mulch", acts as a womb to induce seed germination,
natural seedling development and allows the root system to become
entangled with the geosynthetic matrix.
Landlok TRM450
Landlok TRM450 is comprised of a dense, three-dimensional web of green
polyolefin fibers oriented and mechanically bonded between two nets.
This matrix has been designed to be non soil-filled in order to provide
maximum erosion protection through increased ground coverage, while
allowing immediate aesthetics and growth of vegetation through the
mat.
Landlok TRM450 is generally placed above a seeded surface and relies
upon sediment capture rather than soil filling for increased stability.
Superior strength, performance and durability separates this TRM from
temporary degradable "high velocity" organic blankets.
Landlok
Turf Reinforcement Mats
Maximum Recomended Design Values |
Product |
Velocity |
Shear
Stress |
Short
Term
(1/2 hr) |
Long
Term
(50 hrs) |
Short
Term
(1/2 hr) |
Long
Term
(50 hrs) |
Landlok
TRM1060
Non
Vegetated
Vegetated
|
4.3
m/sec
6.1 m/sec |
2.4
m/sec
4.3 m/sec |
285
N/m2
380
N/m2 |
95
N/m2
240 N/m2 |
Landlok
TRM1060
Non
Vegetated
Vegetated |
5.5
m/sec
5.5 m/sec |
2.4
m/sec
3.0 m/sec |
335
N/m2
335 N/m2 |
95
N/m2
190 N/m2 |
Natural
Vegetation
Class C |
1.5
m/sec |
0.6
m/sec |
45
N/m2 |
25
N/m2 |
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Demonstration
of soil containment and interlock by pyramidal cells and ribs. |
Permanent
Erosion and Reinforcement Matrix
PYRAMAT® is a three-dimensional
geotextile matrix designed for erosion control applications where
maximum strength and durability are required.
Composed of UV stabilised monofilament yarns woven into dimensionally
stable pyramid like openings, PYRAMAT erosion matrix has excellent
tensile strength, high coefficient of friction and superior interface
shear resistance.
It provides superior protection and better long term performance to
that offered by a TRM, and is an excellent alternative to hard armour
systems. |
Sediment
Control Fences
Silt Fences and Curtains
Three economical silt fences are available to control sediment run-off
from construction sites of all sizes. They offer a combination of
ultra violet resistance, strength and retention capabilities. Installed
around the perimeter of construction sites, properly trenched and
tightened, these products help to contain overland flow by forming
continuous sediment basins to allow the suspended silt to settle.
Budget Silt Fence (SPC860SF)
Available in height of 860mm and rolls 100m long this product is a
plain woven with no draw string.
All Purpose Silt Fence (SPC860DC)
A stronger silt fence, 860mm high, 100m long and having a draw string
attached at the top. The draw string is particularly used to re-tighten
the silt fence after a rainfall event.
Premium Silt Fence (914SCD)
A top of the range product with unique, woven, monofilament yarns
offering superior filtration characteristics and flow rates. This
is used in critical application. Roll size 900mm x 91.5m.
Silt Curtains
Are floating booms with a length of geotextile attached underneath.
They are used to contain silt laden, turbid water on construction
sites adjacent to water. They are available in prefabricated lengths
of approximately 30m and depths of approximately 3.5m and 5.5m. The
curtains need only to be weighted on site. |
Biodegradable
Erosion Products
Jute Mesh and Polyjute (407GR)
By Protecting the surface from water and wind erosion, JUTE MESH and
Polyjute are designed to hold the soil surface and seeds in place
until vegetation can take hold. The mesh then naturally degrades into
the soil. The primary application for these meshes would be for limited
slopes and swale drains where, once established, vegetation can cope
with the erosive forces. They are not designed to permanently reinforce
the vegetation. Polyjute is exceptionally light and easy to handle.
Jute Mat
LIGHT GRADE MAT has similar application to the meshes above, but where
a uniform cover of material, rather than an open, grid like, pattern
is required.
The mat will protect the soil and provide an environment which accelerates
seed germination. As the mat covers most of the soil, fine bladed
grasses should be used if seeding occurs beneath the mat.
HIGHGRADE MAT is used as a mulch mat to restrict weed growth whilst,
allowing growth of spot-planted seedlings.
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Landlok
FRS - Geosynthetic 'Fibre Roving System'
LANDLOK Fibre Roving System is designed to protect newly seeded areas
under slightly more severe applications than jute mesh; i.e. longer
slopes or moderate water flow.
Using a simple compressed air gun, continuous strands of fibrillated,
polypropylene yarns are applied to the ground surface. This creates
a three-dimensional 'built in place', overlapping matrix that provides
protection from rainfall impact and run off, preserves soil moisture,
and provides beneficial shading and temperature moderation to foster
plant development. The polypropylene filament eventually breaks down
harmlessly into the soil.
The primary applications for LANDLOK FRS would be for slopes and swale
drains where, once established, the natural vegetation can cope with
the erosive forces. It is not designed to permanently reinforce the
vegetation. |
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