Netting Solutions for Erosion Control Applications

Netting Solutions for
Erosion Control Applications
NETTING SOLUTIONS FOR
EROSION CONTROL
APPLICATIONS
Our netting components provide
flexible containment and protection
functionalities that keep erosion in check.
Conwed netting plays an essential function in rolled erosion
control products (RECPs). Our customers use our plastic
netting as the containment element in their Erosion Control
Blankets (ECBs), Turf Reinforcement Mats (TRMs) and Sediment
Retention Fiber Rolls (SRFRs), usually known as wattles. We
also manufacture an entire portfolio of Prostran® synthetic
fibers which are used as a filler in TRMs. Depending on the
final application, we can customize a wide range of netting
characteristics to meet specific product requirements and
performance.
UNDERSTANDING EROSION CONTROL
Erosion Control is the practice of preventing or controlling
wind or water erosion in agriculture, land development and
construction. Vegetation, such as grasses and windflowers,
and other materials such as straw, fiber, stabilizing emulsion,
protective blankets, etc., are placed to stabilize areas disturbed
by grading operations, reduce loss of soil due to the action of
water or wind, and prevent water pollution.
TYPES OF EROSION CONTROL PRODUCTS
Based on information gathered through the Erosion Control
Technology Council (ECTC), erosion control products can be
classified in three main categories:
1.Rolled Erosion Control Products (RECPs)
2.Hydraulic Erosion Control Products (HECPs)
3.Sediment Retention Fiber Rolls (SRFRs)
Conwed manufactures the plastic netting and synthetic
fibers used by manufacturers in the assembly of their final
erosion control products. Our netting portfolio is an essential
component to contain the matrix materials in RECPs and SRFRs.
800.426.0149|
[email protected]|
www.conwedplastics.com
CONWED NETTING PORFTOLIO
ORIENTED NETTING
Oriented netting is initially manufactured through a single-step continuous
extrusion process that yields a plastic material with integral joints called
extruded netting. Once the extruded netting is produced, a secondary process
called orientation takes place. Through orientation, the extruded netting is
reheated and stretched in either the machine direction (MD), cross direction
(CD) or both directions, generating a lighter netting configuration with similar
strength. Oriented netting is predominantly used as the containment material in
Erosion Control Blankets (ECBs), Turf Reinforcement Mats (TRMs) and Sediment
Retention Fiber Rolls (SRFRs).
KNITTED NETTING
Knitted netting is manufactured with a technology different from that of extruded
netting. It offers enough flexibility and movement without sacrificing tensile
strength. The high-tenacity multi-filament yarn provides superior strength with
lightweight features. Knitted netting is predominantly used as the containment
material in Sediment Retention Fiber Rolls (SRFRs), also commonly known as
wattles or socks.
PROSTRAN® SYNTHETIC FIBERS
PROSTRAN® synthetic fibers are designed and manufactured to provide excellent
loft and matrix fill in Turf Reinforcement Mats (TRMs) for permanent erosion
control applications. Our Prostran portfolio includes a variety of colors, chemical
formulations and recycled material that adapts to the requirements of the final
erosion control application. These synthetic fibers offer excellent UV resistance to
withstand the ultraviolet radiation exposure that fibers experience in its intended
use and have superior crimping features to provide optimum loading and
distribution in the TRM matrix.
800.426.0149|
[email protected]|
www.conwedplastics.com
CONWED NETTING IN EROSION CONTROL PRODUCTS
EROSION CONTROL BLANKETS (ECBs)
ECBs are used for temporary applications. They are
degradable RECPs composed of processed natural or polymer
fibers mechanically, structurally or chemically bound together
to form a continuous matrix to provide erosion control and
facilitate vegetation establishment¹.
Conwed netting is the essential mesh element used to contain
the matrix. Our engineering teams are able to customize
netting configurations to meet specific performance
requirements.
TURF REINFORCEMENT MATS (TRMs)
TRMs are permanent RECPs composed of non-degradable
synthetic fibers, filaments, nets, wire mesh and/or other
elements, processed into a permanent, three-dimensional
matrix of sufficient thickness. TRMs are typically used
in hydraulic applications, such as high flow ditches and
channels, steep slopes, stream banks, and shorelines, where
erosive forces may exceed the limits of natural, unreinforced
vegetation or in areas where limited vegetation establishment
is anticipated².
Conwed manufactures two TRM components, the Prostran
synthetic fibers used as a matrix and the plastic netting
containing them.
SEDIMENT RETENTION FIBER ROLLS (SRFRs)
SRFRs are manufactured 3-dimensional devices of a specified
filler matrix encapsulated within a flexible containment
material utilized in sediment and flow control applications.
SRFRs are also known as wattles, logs, socks, tubes or fiber
rolls. SRFRs, available as prefabricated units, are constructed
into tubular configurations comprised of rice straw, wheat
straw, excelsior fiber, wood fiber, coconut fiber, compost,
flax or a similar matrix material. The matrix material is
encapsulated within plastic netting, yielding an approximate
functional life of 1 - 3 years³.
Conwed manufactures the plastic netting containing the
matrix materials and can modify netting configurations for
diverse erosion control applications.
800.426.0149|
[email protected]|
www.conwedplastics.com
CONWED NETTING IN EROSION CONTROL PRODUCTS
CATEGORY
ROLLED
EROSION
CONTROL
PRODUCTS
(RECPs)
SEDIMENT
RETENTION
FIBER ROLLS
(SRFRS) OR
WATTLES
PRODUCT TYPES
APPLICATIONS
FUNCTIONAL
LONGEVITY
CONWED
COMPONENTS
EROSION CONTROL
BLANKET (ECB)
Where natural vegetation alone
will provide sufficient long term
erosion protection.
Temporary RECPs
PLASTIC
NETTING
TURF REINFORCEMENT
MAT (TRM)
Where natural vegetation
alone will not provide sufficient
long term erosion protection
or sustain expected flow
conditions.
Permanent RECPs
PLASTIC NETTING
+
PROSTRAN® SYNTHETIC
FIBERS
SEDIMENT RETENTION
FIBER ROLL (SRFR) OR
WATTLE
SRFRs slow and disperse runoff,
thereby reducing soil erosion,
and increasing infiltration. SRFRs
are also known as “wattles,”
“socks,” or “tubes.”
Temporary
PLASTIC
NETTING
*Conwed offers plastic netting with degradability features. Contact our team for specific information about our manufacturing capabilities, resins, additives and products’ functional life. Conwed is a member of the
International Erosion Control Association (IECA) (www.ieca.org) and the Erosion Control Technology Council (ECTC) (www.ectc.org).
REFERENCES:
¹ Source: Erosion Control Technology Council www.ectc.org
² Source: Erosion Control Technology Council www.ectc.org
³ Source: Erosion Control Technology Council www.ectc.org
800.426.0149|
[email protected]|
www.conwedplastics.com
ABOUT CONWED
WHO WE ARE
Conwed is the leading plastic netting manufacturer
in the world.
Headquartered in Minneapolis, Minnesota, Conwed has five manufacturing
locations on two continents and a global distribution network. We have more
than 45 years of experience developing netting solutions to help our customers
improve their products in a wide range of industries.
WHAT WE DO
Among our core products and technologies we
manufacture extruded, oriented and knitted
netting with unique customization capabilities.
Our engineering and R&D teams solve product development challenges for our
customers and we specialize in customizing our netting products to meet strict
specifications and performance targets.
HOW WE DO IT
We focus on business development opportunities
and work closely with our customers from concept
to commercialization.
We understand the importance of exploring, analyzing and testing components
and materials during our customers’ product development processes, so we
tailor our products to meet their performance requirements and uncover
potential innovation through ongoing testing and experimentation.
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GLOBAL HEADQUARTERS
EUROPEAN HEADQUARTERS
2810 WEEKS AVE SE
MINNEAPOLIS, MN 55414
TEL 800.426.0149 FAX 800.426.0137
EMAIL [email protected]
MARCEL HABETSLAAN 20
3600 GENK, BELGIUM
TEL +32.89.848310
FAX +32.89.848320
EMAIL [email protected]
www.conwedplastics.com