Geogrids, Geonets, Geocells and Erosion Control Mesh (Certified to ISO 9001)

POLYPROPYLENE BIAXIAL GEOGRID

Our biaxial and uniaxial geogrids are made from high strength polypropylene and HDPE resin. These low creep geogrids are suitable for applications including retaining walls and bridge abutments, pavements, highways, airports, earth walls, earth dams, landfills, landslide repairs, railway track reinforcement and land fill sites. Geogrids are also available made from polyester fibres and we can supply geogrids with high quality geotextiles bonded to them.

Biaxial and uniaxial geogrids are UV stabilised with 2% Carbon Black. They are chemical and biologically resistant and resist installation damage.

Properties TGSG
15-15		 TGSG
20-20		 TGSG
25-25		 TGSG
30-30		 TGSG
40-40
Ultimate Warp Tensile
Strength >= (kN/m)		 15 20 25 30 40
Ultimate Weft Tensile
Strength >= (kN/m)		 15 20 25 30 40
Yield Elongation
(Longitudinal) %		 <15
Yield Elongation
(Transverse) %		 <13
Longitudinal tensile strength
at 2% elongation >= (kN/m)		 5 7 9 10.5 14
Transverse tensile strength
at 2% elongation >= (kN/m)		 5 7 9 10.5 14
Longitudinal tensile strength at
5% elongation >= (kN/m)		 7 14 17 21 28
Transverse Tensile strength at 5%
elongation >= (kN/m)		 7 14 17 21 28
Length (m) 50 30
Width (m) 3.95

 

HDPE UNIAXIAL GEOGRID

Properties TGDG
PP50		 TGDG
PP80		 TGDG
PP110		 TGDG
PP114		 TGDG
PP160
Ultimate Warp Tensile
Strength >= (kN/m)		 50 80 110 140 160
Yield Elongation (%<=) 11.5
Tensile strength at 2%
elongation >= (kN/m)		 12.0 23.0 30.0 38.0 47.0
Tensile strength at 5%
elongation >= (kN/m)		 25.0 44.0 60.0 75.0 93.0
Length (m) 50
Width (mm) 1000
Creep (kN/m) 20 °C 21.0 32.0 41.0 50.0 57.0

 

PP UNIAXIAL GEOGRID

Properties TGDG
PP35		 TGDG
PP50		 TGDG
PP80		 TGDG
PP110		 TGDG
PP150		 TGDG
PP200		 TGDG
PP260
Ultimate Warp Tensile
Strength >= (kN/m)		 35 50 80 110 150 200 260
Yield Elongation (%<=) 10
Tensile strength at 2%
elongation >= (kN/m)		 10.0 12.0 26.0 32.0 45.0 70.0 90
Tensile strength at 5%
elongation >= (kN/m)		 22.0 28.0 48.0 66.0 90.0 120.0 180.0
Length (m) 100 50 30
Width (m) 1000-4000+10 2000-3000

 

HIGH MODULUS POLYESTER GEOGRIDS

Our polyester geogrids are characterized by high tensile strength and low creep. The geogrids are manufactured using high quality yards coated with a protective polymer. They offer an economical solution where non-cohesive, coarse grained soils must be reinforced because they adapt better to irregularities of the fill or subgrade than rigid geogrids. These grids have high junction strength, superior long term design strength and durability.

Applications include reinforcement of road sub-base, retaining walls and segmented block walls.

Properties Standard PETG
35/20		 PETG
60/30		 PETG
90/30		 PETG
100/30		 PETG
120/30		 PETG
180/30
Ultimate Warp Tensile
Strength >= (kN/m)		 ASTM D6637
ISO10319		 35 60 90 100 120 180
Ultimate Weft Tensile
Strength >= (kN/m)		 ASTM D6637
ISO10319		 20 30 30 30 30 30
Ulitmate Warp
Elongation (%)		 ASTM D6637
ISO10319		 <11.0 <11.0 <11.0 <11.0 <11.0 <11.0
Creep limited strength
@ 120 years >= (kN/m)		 ASTM D6992 22.0 38.0 57.0 64.0 76.0 112.0
LTDS @ 120 years BS 8006 18 31 47 52 63 94
Mesh size (+/- 20%)   20x20 18x18 16x16 16x16 15x15 15x15
Roll Length (m)   50 100
Width (+/- 0.1m) (m)   1.0-5.3 according to customer's requirements

We can supply PET geogrids ranging from 10kN/m to 300kN/m.

HDPE GEONETS (CAN BE SUPPLIED WITH OR WITHOUT A GEOTEXTILE)

Our biplanar and triplanar geonets are made from high strength HDPE bonded with a high quality, non woven geotextile. Geonets are designed for in-plane flow under design loads over a large surface area.

Biplanar geonets have a low intensity but high elongation and are suited for projects where the foundation reasonable or the bearing capability demand is low, such as parks, temporary roads, banks and slopes. Geonets can be used in place of soil drains in civil and environmental applications such as under-slab drainage, leak detection, gas venting and leachate collection.

Biplanar and triplanar geonets are UV stabilised with 2% Carbon Black. They are chemical and biologically resistant and resist installation damage.

Properties CE111 CE121 CE131 CE131B CE151
Width (m) 2.5
Length (m) 50-100
Aperture (mm) 8-6 8-6 27-27 22-22 74-74
Tensile Strength >= (kN/m) 2.0 7.68 5.8 6.4 1.82
Elongation at maximum strain <= (%) 41.0 20.2 16.5 18.6 23.2
Tensile strength at 10% strain >= (kN/m) 1.32 6.80 5.20 5.74 3.83

 

TRIPLANAR (3 RIB) GEONET (CAN BE SUPPLIED WITH OR WITHOUT A GEOTEXTILE)

Physical Properties Test Method Units Type Mark
AYDT1 AYDT2
Composition / / 3 ribs 3 ribs /
Polymer / / HDPE HDPE /
Additive / / Carbon
black		 Carbon
black		 /
Geometric Properties
Thickness V=20kPa ISO9863 mm 7.0 7.6 a
V=200kPa ISO9863 mm 6.5 7.0 a
Unit weight   ISO9864 g/m2 >=1250 >=1550 a
Roll width   / m 4.00 4.00 a
Roll length   / m 25.0 25.0 a
Roll diameter   / m 0.50 0.53 a
Technical Characteristic
Transmissivity water V=20kPa ISO12958 l/m/s 2.60 3.00 a,b,c,d,e
V=100kPa ISO12958 l/m/s 2.40 2.80 a,b,c,d,e
V=200kPa ISO12958 l/ms 2.20 2.60 a,b,c,d,e
V=500kPa ISO12958 l/ms 1.80 2.20 a,b,c,d,e
V=1000kPa ISO12958 l/ms 1.30 1.50 a,b,c,d,e
Tensile Strength (KN/M)   ISO10319 KN/m 12 14 a,b,e
Elongation, %   ISO10319 KN/m 20 20 a,b,e

Mark:
a= representative value
b= longitudinal
c= 2mm HDPE condition of pad border
d= l/m/s= 1.0E-3 m2/s
e= transmissivity and tensile strength tested every 25000m2

HDPE GEOCELLS

We offer a range of 3D structural geocells made from HDPE with a cell height ranging from 50 to 200 mm. Manufactured under an ISO9001 quality assurance program, the cell joints are ultrasonically spot-welded with three welds per inch uniformly spaced across the height of each strip. Seam strengths are the same across the entire height of the cell joint. Geocells can be supplied with solid or perforated walls. We can also supply a geocell for vertical installations.

Geocells are supplied as collapsed, lightweight bundles that are easily transported and handled on site. When opened during installation, they create a series of interconnected cells. Once the cells are expanded to their maximum size and filled with soil, gravel, concrete, etc, the structure becomes rigid and monolithic. This effectively confines unconsolidated materials within the cells and prevents their movement even on steep slopes, or from substantial dragging forces such as hydraulic currents. The confinement action not only prevents the erosion but improves the structural and functional behaviour of soil and aggregate infill materials, providing an alternative to hard engineering solutions such as reinforced concrete or rock armour.

Properties TGGS
200-400		 TGGS
150-400		 TGGS
100-400		 TGGS
75-400		 TGGS
50-400
Yield Strength >=Mpa 18 18 18 18 18
Height (mm) 200 150 100 75 50
Weld distance (mm) 400 400 400 400 400
Thickness of HDPE (mm) 1±0.05 1±0.05 1±0.05 1±0.05 1±0.05
Weld peel strength (N/m) 10 10 10 10 10

 

Polypropylene Erosion Control Geomats

Erosion control geomats are designed for the protection and growing of grass on slopes subject to surface erosion by resisting the impact of drop run-off and soil movement. The three dimensional structure protects the layer of topsoil and anchors the roots of growing grass. Erosion Control Geomats are manufactured by joining together several layers of polypropylene extruded fibres. Layers of fibres placed above and below a single central layer provide thickness and three-dimensionality to the geomat. Available in green or black

Applications include slope protection, stormwater and irrigation channels and land fill covers.

Properties AYEM2 AYEM3 AYEM4 AYEM5
No of Layers 2 3 4 5
Thickness >=(mm) 10 12 14 16
Weight (g/m2) 220 260 350 430
Width (m) 1.5 - 2.0
Length (m) 30 - 50
Tensile Strength (kN/m) 0.8 1.6 2.0 3.2

 

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