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. |
