Geotextiles

AAA Metal Suppliers offers a wide range of high quality geosynthetic products manufactured by the Jiangsu Broad Pioneer Textile Company, Yuan Da. Yuan Da has extensive experience in manufacturing and designing geotextiles to international specifications and supplying and installing geotextiles for major projects in China. Its products include slit & spilt film woven geotextiles, geosynthetic clay liners (GCL), nonwoven geotextiles, reinforced geomembranes, woven geotextiles, reinforced geotextiles and a wide range of woven polypropylene bags.

Products

 

Jiangsu Broad Pioneer Textile Company

Yuan Da's production facilities are ISO9001 accredited and its geotextiles are produced in strict accordance with international standards including: strength, modulus, weather resistance, corrosion resistance and creep performance. Yuan Da's geotextiles are regularly tested by independent laboratories. The products are used under a wide range of environmental conditions in various countries, including Australia and the EU. All products are fully guaranteed by the manufacturer.

The Jiangsu Broad Pioneer Textile Associated Company Limited's Research and Development Team of geotextile engineers is available to assist customers to both improve their existing products and develop new products.

 

Geotextile Fabrics

Yuan Da's products are manufactured to meet the strict mechanical and hydraulic requirements necessary to solve geotechnical and hydraulic engineering challenges. Their manufacturing processes are ISO 9001 accredited and their geotextiles are regularly tested by independent laboratories.

 

In China, Yuan Da has a high reputation for the development and application of geotextiles for civil engineering and construction. Appliations include: non-woven pump bags, dewatering bags, large geo-synthetic separation mats and dewatering bags.

 

Reinforced Stitched Non-woven Polyester Geotextile

Reinforced stitched non-woven polyester fabrics are used widely in Europe, the United States and Asia for stabilising coastal areas. These lightweight fabrics offer exceptional strength and can be manufactured to meet your specifications. They are very cost competitive compared to alternative fabrics and offer superior resistance to attacks by vandals.

Examples of Reinforced Stitched Polyester Non-woven Fabrics
Property Unit 408 Grade No. 1 No 4 No. 5
Fabric Weight g/m2 408 1175 810 565
Thickness mm 2.0 2.9 2.5 2.0
Tensile Strength (longitude) kN/m 70 235 150 81.4
Grab Elongation (longitude) % 13.3 15.2 14.8 14.6
Tensile Strength (latitude) kN/m 105 220 155 87
Grab Elongation (latitude) % 13.4 15.8 15.1 14.4
Tear Strength (longitude) N 950 3240 2150 1250
Tear Strength (latitude) N 900 3350 2480 1320
CBR Strength N 6210 14500 9560 6550
Permeability K20 cm/s 0.403 0.05 0.05 0.05
Equivalent Aperture O95 mm 0.2 0.1 0.1 0.1
Roll Width m 5.3 5.3 5.3 5.3
Roll Length m 100 100 100 100

Heavy Duty Reinforced Stitched Non-woven Polyester Underlay

Yuan Da's new heavy-duty reinforced stitched non-woven polyester underlay protects liners from abrasion, puncture and vandalism and also prevents long term damage caused by indentation from stony soils under high static loads. The underlay consists of two layers of non-woven polyester fabric, needle-punched to an inner layer of reinforced stitched polyester fabric.

Traditionally subgrades had to be well compacted and offer an even grade, free from sticks, stones and protrusions to prevent any damage to the liner. This new heavy duty reinforced stitched non-woven polyester underlay offers a competitive alternative for rock armour underlays for stormwater outfalls, marine scour pads, pond and dam geo-textile underlays, woodchip underlay pads and separation layers. It also delivers improved performance when welding HDPE on undulating surfaces.

Specifications
Item Unit Value
Fabric Weight g/m2 1000
Tensile Strength - Longitude KN/m 75
Tensile Strength - Latitude KN/m 95
CBR Strength N 8800
Width m 5.3

Economical needle-punched, non-woven underlay

AAA Metal Suppliers can also supply a low cost needle-punched, non-woven underlay to protect LDPE and HDPE liners. This 550g/m2 geotextile is made from short fibre polyester fabric. It offers a very competitive alternate to existing products.

Technical Data
Item Unit Value
Non Woven Polymer   Polyester
Fabric Weight g/m2 550
Thickness mm >3.6
Width M Max 6.0
Length M 100

Polypropylene and Polyester Woven Fabrics

Yuan Da's woven geotextiles are available for subgrade separation, reinforcement and applications such as reinforcing soils where extremely high tensile strength with low elongation is required. Yuan Da's polypropylene and polyester woven geotextiles have been successfully used in a wide range of projects including:

  • Road & rail embankments
  • Reinforced earth structures on poor foundations
  • Slope stabilization
  • Piled foundations
Technical Data
Mass of Fabric (g/m2)
Weight (g/m2) 140 200 260 320 390 460 530 600 680 760 950
Rupture Tensile Strength (warp)
(KN/m) =		 35 50 65 80 100 120 140 160 180 200 250
Rupture Tensile Strength (weft)
(KN/m) =		 24.5 35 45.5 56 70 84 98 112 126 140 175
Rupture Elongation (%) = Warp 35, Weft 30
CBR Punched Strength (KN) = 2.0 4.0 6.0 8.0 10.5 13.0 15.5 18.0 20.5 23.0 28.0
Vertical Permittivity (cm/s) K x (10-2 ~10-5)
Apparent Opening Size O90(O95) (mm) 0.07~0.5
Tear Strength (KN) = 0.5 0.8 1.1 1.3 1.5 1.7 1.9 2.1 2.3 2.5 3.0

Polypropylene Silt Fences and Floatation Curtains

Yuan Da's woven polypropylene silt fences and floatation curtains can be used as part of erosion control systems, such as: silt fences and traps, in dredging operations or on non-vegetated slopes as a temporary erosion control measure.

Needle Punched Composite Non-woven and Woven Fabrics

These composite fabrics consist of polypropylene UV resistant woven fabrics, needle punched to PET non-woven fabrics. This product has been widely used for the manufacture of filter tubes on large scale projects in China.

AAA Metal Supplies also offers a range of other high tensile woven and non-woven geotextiles for the construction of sediment filter tubes, dewatering and pump filter bags. Woven and non woven geotextile dewatering bags are used either to replace or complement mechanical sediment and sludge removal equipment.

Technical Specifications
  Medium Strength High Strength
Polypropylene Woven Fabric 230g/m2 230/m2
PET Non-woven Fabric 150g/m2 150g/m2
Weight >380g/m2 >380g/m2
Thickness 3.0mm 3.0mm
Tensile Strength (Warp) 34kN/M >52kN/M
Tensile Strength (Weft) 30kN/M >50kN/M
Grab Elongation 11% <35%
Trapezoidal Tear (Warp) >400N >800N
Trapezoidal Tear (Weft) >300N >800N
Permeability K20 >2x10-2cm/s >1.0x10-2cm/s
Puncture Strength 690N  
Equivalent Aperture O90 0.075mm  
Equivalent Aperture O95   0.07-0.10mm
Roll Width 4.0M 3.5M
Roll Length 100M 100M

Webbing Tape for Booms

Polypropylene and polyester webbing tape for floating booms and related applications can be manufactured to your specifications.

Cuspated Drainage Sheets and Drainage Tanks

Cuspated drainage sheets

Yuan Da drainage sheets provide vertical drainage behind bridge abutments, retaining walls and in basements. They offer a cost effective option to the conventional use of aggregate to form a vertical drainage layer.

Yuan Da drainage sheets are made from a single or double cuspated High Impact Polystyrene core and coated with a high quality 140g/m2 non woven needle punched geotextile with a 150cm geofabric overlap along one edge.

Yuan Da drainage sheets come in a range of sizes from 1.2m x 30mm. For larger applications the sheets can be supplied in widths up to 3.4 metres. Alternatively, the dimples along the edges of the sheets are easily pressed together on site, to form a wider sheet.

Structural Drainage Squares/Tanks

Yuan Da's Structural Drainage Squares are suited to subsurface infiltration or water retention applications. Made from a blend of high quality PP and PE for added strength and durability, Drainage Squares are easily joined together to form a drainage mat or can be formed into blocks to fill a structural void. They are lightweight and ideal for the construction of infiltration tanks, sub surface channels and void spaces for rooftop gardens and planter boxes.

These drainage squares can also be supplied with a range of high-quality non-woven needle-punched geotextiles.

 

Geosynthetic Bentonite Liner (GCL)

Yuan Da's Geosynthetic Bentonite Liner or GCL is manufactured from high quality fabric using its own proprietary technology. It has been tested by international laboratories and used in major projects in China and in Italy, Spain and other European countries. Fibres from the upper non-woven white polyester fabric are randomly needle-punched through the layer of bentonite into the black polypropylene woven fabric beneath. This process results in an even, waterproof layer and a strong mechanical bond between the fabrics. The black under layer also makes it easier to check the stitching quality as the liner is being laid.

The granulated bentonite used in the liner also offers Occupational Health and Safety benefits when compared to GCLs made from powdered bentonite.

Yuan Da's Geosynthetic Bentonite Liner is available in grades from 4380g/m2 to 5500g/m2. The GCL is available in rolls up to 5.1 m wide with a clearly marked overlap-line along the edge of each roll. High quality bentonite can also be applied to the overlap line to create a water tight seam along overlapping edges.

Artificial lake at Nanjing Olympic Stadium Geotextile drains and silt fence, Lu Xi, Fujian Province
Artificial lake at Jiang Ning Sports Stadium Changzhou Liyang landfill: 100,000m2 of GCL-5000
Technical Data
  Test Standard Units Grade
Bentonite     GCL-4500
Swell Index ASTM D-5890 ml/2g > 26
Fluid Loss ASTM-D-5891 ml < 18
Moisture Content ASTM D-4643 % < 13
Coefficient of Water Absorption ASTM D-4643 % > 600
Geotextiles
Polyester Cover (non-woven) ASTM D 5261 g/m2 200
PP Carrier (woven) ASTM D 5261 g/m2 100
Yuan Da Liner (as manufactured)*
Quality Assurance ISO 9001;   Yes
GCL Total Mass ASTM D-5993 g/m2 > 4500
Bentonite Mass ASTM D-5993 g/m2 > 4200
GCL Rupture Intensity Strength ASTM D-6768 kN/m > 10.4
Grab Strength (MD/CMD) ASTM D-4632 N > 600/800
CBR Strength GB/T 14800-1993 N > 1800
CBR Elongation GB/T15788-1995 % > 15
Peel Strength ASTM D-6496 N > 72
Hydraulic conductivity k-value
(Permeability)		 ASTM D-5887 m/s < 5x10-10
Dimensions - can be varied according to customer's requirements
Width   m 5.1
Length   m 30
Effective Coverage per Roll
(5.1m x 30m excluding overlap requirements)		   m2 153

The GCL is wound on a high-strength cardboard tube to prevent water absorption and loss of rigidity during transportation. Rolls are placed in a plastic liner, wrapped with high strength woven fabric and securely tied with webbing. Each roll in the container is separately numbered, e.g. 1/30. Lifting slings can be fitted on request.


Lining materials - HDPE, LDPE, PVC, EVA, EPDM

Yuan Da supplies a range of HDPE, LPDE and reinforced PVC lining materials. These liners are made from new materials (not recycled) and can be manufactured in varying thicknesses to suit particular applications such as:

  • Landfills
  • Waste Water Treatment Plant liners
  • Mining applications
  • Irrigation canal liners
  • Ponds
  • Secondary Containment liners (eg: bunds)
  • Non potable water containment lagoons
  • Irrigation dams

Our HDPE Liner is available in a range of thicknesses and profiles - smooth, single side rough or double sided rough. The liner is manufactured to international standards by a newly commissioned flat extraction plant. Details of the Quality Assessment of the Manufacturing Process are available on request.

Manufacturer's warranty: 20 years

Technical Data
Item Unit Value Test Method
Thickness mm 1.50 ASTM D5199
Density g/cc 0.94 ASTM D1505/D792
Tensile properties:      
Strength at break KN/m 40 ASTM D6693 Type IV
Strength at yield KN/m 22 ASTM D6693 Type IV
Elongation at break % 700 ASTM D6693 Type IV
Elongation at yield % 12 ASTM D6693 Type IV
Tensile resistance N 222 ASTM D1004
Puncture resistance N 534 ASTM D4833
Stress crack resistance hours 300 ASTM D5397
Carbon Black Content % 2.0-3.0 ASTM D1603
Oxidative Induction Time minute 100 ASTM D3895
Oven aging at 85oC. Standard
OIT retained after 90 days		 % 55 ASTM D5721
ASTM D3895
UV Resistance: High Pressure
OIT retained after 1600 hours		 % 50 ASTM D5885
Roll length M 141
Roll width M 6.86
Reinforced PVC used for Taihu Lake rehabilitation project
PVC Reinforced Liner Specifications
Thickness 0.74mm
Weight 880g/m2
Draw Strength(N/5CM)  
    longitude: 4100
    latitude: 3500
Tear Strength(N):  
    longitude 380
    latitude 550
Density(radix/inch)  
    longitude 15
    longitude 15

Ethylene Vinyl Acetate sheeting can be supplied in a wide range of grades. Yuan Da's EVA has been used for major tunnelling projects in China.

Standard Test Results
Item Unit Chinese Standard Test Result
Tensile Strength MPa 16 22
Rupture Elongation % 550 712
Tear Strength KN/m 60 80
Low Temperature Curvature -35oC No flaw No flaw
Permeability 0.3MPa, 30min No water penetration No water penetration
Viscosity in a cut environment N/mm 5 >5
Thicknesses available mm   1.0 - 2.0
Width available m   2.1 - 2.3
Length (standard) m 30 m   30

EPDM

Basic Specifications
Property Value
Density (g/m2) 1.25 - 1.35
Tear Strength (N/mm) >40
Bending/curvature at - 20oC Nil
Filter Permittivity cm/s <10-11
Rupture Strength (longitude/latitude) MPa >15/13
Stretch Elongation Rate (longitude/latitude) % >220/200
Expansion and shrinkage % <5

Woven Polypropylene Bulk Bags

Yuan Da's range of woven polypropylene bags includes: U-Panel Bags; Circular Woven Bags with short and full loops; Coated and Non Coated Bags: PE Lined Bags; Square; and Round Type Bags. The bags come with several options: Open Top; Conical Top; Duffle Top; Filling Spout; Closed Bottom; Discharge Spout with petal closure or swan neck; Discharge Spout with diaper; Belt Lifting; Rope Lifting and Stevedore Lifting.

 

 

Special purpose bags such as: Baffle Bags (to maximise the space of the container during transportation); Sift Proof Bags (with leak-proof seams); Double Wall Bags; Breathable Bags (for agricultural products which require ventilation); and Dangerous Goods Bags are also available. All bags are UV Stabilised (0.3% active HALS treated).