- Performance evaluation certificate for erosion control
sheet
- NETIS by Ministry of Land, Infrastructure and Transport(Registration
No.QS=020022)
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What is EROSION CONTROL SHEET?
A new method of revetment covered
with plants to protect against erosion by reinforcing
the erosion resistance of plants
RivergreenTM is a new
method of revetment work for erosion protection by reinforcing
erosion-proof ability of plants. It was developed through
a collaborative project by AGT and the River Lab.of Ministry
of Land, Infrastructure and Transport,whose title is“Studies
on sheet material which is able to control erosion and
luxuriance of plants".
The sheet is leachy and has air
gaps bigger than soil grain. It can reduce the eroding
force towards the ground.(current speed) To less than
critical upset ratio to corrosion.
"Quote from "Collaborative
Research Report on Development of Erosion-proof Sheet
Using Erosion-proof Capability of Plants".
Party added and altered.
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Features of RIVERGREEN ™
RivergreenTM forms the
crossings of polypropylene fiber which has capsule and
core structure into three-dimensional structure with heat-sealing.
It can maintain high porosity and strength without using
binder such as adhesive.
- Outstanding erosion-proof capability
The sheet is entirely heat-sealed, which makes the crossings
of fiber bonded evenly with adequate strength, and also
it has very high compression recovery properties. Therefore
it makes even three dimensional net keeping high erosion
resistance.
- Outstanding strength and workability
The sheet has flexibility, so there is no deformation
or damages to decrease the high erosion resistance.
It is easy to bond and repair the sheets by heat-sealing
process.
- Outstanding soil-filling capacity
With high porosity of soil filling can be performed
efficiently and appropriately regardless of dry type
or wet type.
- Burning resistance
Even when a fire breaks out on the sheet, the sheet
would not catch fire nor the fire spread out.
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BONDING RIVERGREEN™ AT SITE
1.Bonding by butt sealing
One of the features of RIVERGREENTM is
heat-sealing can be performed at site with heated
air. The bonded section is as strong as the rest of
the sheet. Thus, material loss can be decreased significantly
compared with overlapping method. |
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Transverse direction
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Current direction
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2.Bonding by overlapping |
Transverse direction
|
Current direction
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PURPOSE OF RIVERGREEN™(EXAMPLE)
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RANGE OF APPLICATION
ITEM |
REQUIREMENTS |
BED SLOPE |
1/300 and below |
VELOCITY DISTRIBUTION |
Where running
water is parallel with the ground |
CRITICAL VELOCITY |
2.0(m/s) |
2.5(m/s) |
3.0(m/s) |
3.5(m/s) |
DESIGN DEPTH |
1.0m and above |
1.5m and above |
4.0m and above |
10m and above |
SITE
CONDITION |
1.A place
where soil filling can be performed,both dry
type &wet type
2.A place where erosion protection treatment
can be performed in upstream of sites
3.A place where planting is possible
4.A place without fire such as controlled
burn |
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PRODUCT SPECIFICATION
ITEM |
SPEC |
RAW MATERIAL |
POLYPROPYLENE SERIES RESIN |
PRODUCT WIDTH |
2.1m |
POROSITY |
96% |
WEIGHT/m2 |
900g/m2 |
PRODUCT LENGTH |
10m |
DEPTH |
25mm |
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ABOUT THIS CATALOGUE: This catalogue
provides only a brief outline of RIVAGREENTM.
Please consult us when the product is used for purposes
other than the examples listed in this catalogue. The
product specification is subject to change for improvement
without prior notice.
<REMARKS>
Exemption of liability We are not responsible for the
problems listed below.
- Any problem resulting from design contrary to the
instructions listed in this catalogue
- Any problem resulting from end user's own instruction
and/or work method other than specified in the standard
specifications
- Any problem resulting from being used for other purposes
and/or sites than predetermined
- Any problem resulting from an act by a user of a third
party intentionally or negligently
- Any problem resulting from tampering of structure,
performance and/or specifications after delivery
- Any problem resulting from not notifying immediately
when (a) defect(s) found
- Any problem resulting from use under different circumstances
(temperature, humidity, water level, ground and etc.
) than ordinarily-expected.
- Any problem resulting from force majeure such as natural
disaster, earthquake, ground sinking, fire and explosion.
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