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Floating Silt Curtain Turbidity Barrier to protect the water from
polluting by near construction
SILT CURTAIN/TURBIDITY BARRIER
Why do you need Silt Curtain?
Researches of marine life and organisms have found that fine silt
particles can affect the living conditions of sea or river
creatures and its environment. So today's environmental protection
policies require companies and Individuals to take all reasonable
precautions to prevent sediment contamination of waterways when job
is performed.
When construction is taking place immediately adjacent to a
waterway, such as a Canal
development or construction of a bridge, land reclamation, wharf or
jetty, floating silt curtain
will be applied to confine sediment and prevent dispersal and
contamination of the water body.
What is Silt Curtain?
Pioneer silt curtains are flexible sediment control barriers
designed to prevent the spread of silt and sediment in lakes and
other water bodies when job is being performed in water, or on or
near the shoreline. It’s constructed of permeable fabric or
non-permeable textile material. The Turbidity Curtain is suspended
vertically in the water with a flotation material enclosed in the
top pocket and a ballast chain enclosed in the lower pocket.
Standard and custom fabricated size are available with a variety of
fabric options, floatation sizes, loading bearings, ballast
members, connectors and curtain depths and lengths to suit your
project need in Pioneer.
How to choose proper Silt Curtain?
Choosing the right Silt Curtain (turbidity barrier) for your
location is highly dependent on several different site conditions.
When considering the right option, we typically urge customers to
consider various job site factors and conditions, including water
flow (current speed), waves (height, frequency), wind (speed,
direction), job type, and job duration. If you have any additional
site-specific requirements, please feel free to let us know these
conditions as well. Typical conditions and components can be found
below:
PIONEERTEX SILT CURTAIN COMPETITIVE ADVANTAGE
First of all, PioneerTEX can make any special silt curtains to
client’s order.
Secondly, PioneerTEX is committed to unearthing better results.
Whether it’s for a civil, resource or environmental project, we
offer the latest engineered and technically superior materials and
techniques to save our customers time and money, and minimize the
need to move or remove earth, and reduce the need for granular
materials.
Float covering material-PVC coated tarpaulin fabric specification
was as below:
Floating Boom Diameter Size:
28cm
30cm
STANDARD MATERIAL SPECIFICATIONS-PET WOVEN GEOTEXTILE FOR CURTAIN:
Property | Unit | Test Method | PT350 | PT450 | PT550 | PT650 | PT750 | PT900 |
Unit Weight | g/m2 | ASTM D 5261 | 350 | 450 | 550 | 650 | 750 | 900 |
Tensile Strength | KN/M | ASTM D 4595 | 70/105 | 85/120 | 120/140 | 180/180 | 220/220 | 250/250 |
Elongation | % | ASTM D 4595 | 15-30 | 15-30 | ||||
Materials | ASTM D 276 | Polyester | Polyester |
*PET WOVEN GEOTEXTILE CAN BE REPLACED BY PP OR PET WOVEN FILTER
FABRIC.
For the non-flow water situation, we can choose to use nonwoven
geotextile as curtain material for turbidity barrier.
STANDARD MATERIAL SPECIFICATION-PP NONWOVEN GEOTEXTILE FOR CURTAIN:
Properties (standard) | Unit | PT60 |
Mechanical Properties | ||
Tensile Strength MD EN ISO 10319 | kn/m | 15 |
Tensile Strength CD EN ISO 10319 | kn/m | 12 |
Elongation at break MD EN ISO 10319 | % | 50 |
Elongation at break CD EN ISO 10319 | % | 70 |
Puncture Strength(CBR) EN ISO 12236 | N | 2800 |
Hydraulic Properties | ||
Permeanbility Vertical EN ISO 11058 | l/m2.s | 80 |
Opening Size(O90) EN ISO 12956 | um | 95 |
Identification Properties | ||
Thickness ( 2kpa) EN964-1 | mm | 2.5 |
Mass Per Unit Area EN965 | g/m2 | 280 |
In most cases, woven geotextile of curtain was recommended because
of higher strength and permeability.
Sometime, we can also use PVC coated woven fabric as 100%
waterproof curtain material.
PioneerTEX Turbidity Curtain Specifications | ||||
Product | Type 1 | Type 2 | Type 3 DOT | Type 3 Permeable |
HDPE Flotation | 4" or 6" Float (15cm,20cm) | 6", 8", or 12" Float (15,20,25,30cm) | 6" or 8" Float (20cm,25,30cm) | 8" or 12" Marine Grade Flotation ( 20cm,25,30cm) |
Flotation Covering Fabric | 18 oz. PVC (650gsm) | 22 oz. PVC(750gsm) | 18 oz. PVC (650gsm) | 22 oz. PVC(750gsm) |
Skirt Fabric | 8 oz. Nonwoven Geo | 6 oz. Monofilament Geotextile(200gsm) | 6 oz. Monofilament Geotextile(200gsm) | 6 oz. Monofilament Geotextile(200gsm) |
Tension Cable On the top | N/A | 5/16" Cable(8mm) | 5/16" Tension Cables (8mm) | 5/16" Dual Tension Cables(8mm) |
Reinforcement Belt | 5cm Belt for Reinforcement on the top | |||
Top Connectors | Grommets | Grommets | Steel Plate | Steel Plate |
Skirt Connector | Grommets | Grommets | Grommets | Grommets |
Bottom Connectors | Grommets | Steel Stress Plates | Steel Stress Plates | Steel Stress Plates |
Bottom Ballast Chain | 5/16" Ballast Chain(8mm) | 5/16" Steel Ballast Chain(8mm) | 5/16" Steel Ballast Chain(8mm) | 3/8" Steel Ballast Chain(8mm) |
Standard Length | 15mts or 20mts | 15mts or 20mts | 15mts or 20mts | 15mts or 20mts |
Depth | 3' - 10' | 3' to 100' | 3' to 20' | 3' to 100' |
Remark: We can choose to use PET High Strength Multifilament woven
geotxtile for skirt filter. Strength up to 200/200 KN/M. And Color is in White color. |