Gabions are baskets manufactured to SANS 1580 with hexagonal woven wire Mesh Type 80, commonly referred to as double twist wire mesh.The steel wire used in the manufacture of Gabions is 2.7mm in diameter to SANS 675 and is heavily galvanised to class A with zinc or zinc alloy (Galfan Zn 95Al5) coated wire according to SANS 1580 and has a tensile strength between 350-575N/mm2. If required, a Polymer coating is extruded over the galvanised wire to provide added protection for use in aggressive environments where corrosion is present. The two types of Polymer coatings available are PVC coating to SANS 1580 which is available in grey or tan and has a nominal thickness of 0,5 mm and PA6 Nylon coating to EN 10245-5 which comes in black and has a nominal thickness of 0,4mm.
Features of gabion basket
- Corrosion and rust resistance.
- Acid and alkali resistance.
- High tensile strength.
- Economical.
- Ecological.
- Easy to install and assemble.
Applications of gabion basket
- Retaining wall.
- Coastal protection.
- Bridge protection.
- Channel lining.
- Riverway controlling.
- Riverbank protection.
- Slope protection.
- Gabion planter.
- Bastion barrier.
- Landscape construction.
- Item
Code - PDSN-01
- PDSN-02
- PDSN-03
- PDSN-04
- Length
(m) - 1
- 2
- 3
- 4
- Width
(m) - 1
- 1
- 1
- 1
- Height
(m) - 1
- 1
- 1
- 1
- Number
of Cells - 1
- 2
- 3
- 4
Different types of gabion box
The gabion box can be divided into galvanised gabion box, PVC coated gabion box, Galfan gabions and 10% aluminum-zinc gabions. They all have excellent corrosion and rust resistance performance, but they are different in the chemical content and performance.
The electric galvanized gabion has no higher than 90 g/m2 zinc coating, which is economical. And the hot dipped galvanized gabion have more than 200 g/m2 zinc coating to be used in the high corrosive applications.
The galvanized wires are added into different content of aluminum to form Galfan gabion and 10% aluminum-zinc gabion. They have triple service life than the galvanized gabions.
According to the mesh structure
In different applications, the requirements to the tensile strength and stability is different. To suit more applications, the gabion box are made into double twisted structure and triple twisted structure.
It is the common seen and widely used type gabion box. It has three strand and solid enough to be used in the common applications. It is lighter than the triple twisted gabion box in weight and easier to transport and operate.
The triple twisted structure is a heavy duty type gabion box. It has five strands which can supply higher tensile strength and stability for the gabion box. The triple twisted gabion box is widely used in the high impact applications, such as flood controlling, coastal controlling, it can defend the impact from external force effectively.
According to different fabrication technology
The gabion box can be made through different technology, it can be woven or welded into different mesh types and to be used in different applications.
The steel wires are woven into hexagonal mesh types in three strands and five strands. There is no any welding point and will not loose when it is cut into pieces. The woven type gabion box is widely used in the protective applications and is flexible than the welded gabion box
The steel wires are welded together to form square mesh types with a rigid and solid structure. Welded gabion is commonly used in both protective and decorative applications, such as bastion barrier for military defense and flood control, landscape construction.
Specifications of woven gabions
Material |
Technical Data |
|
|
|
Wire diameter: |
|
| Mesh wire diameter | 2.0 mm – 4.0 mm. |
| Selvedge wire diameter | 3.0 mm – 4.4 mm. |
| Lacing wire | 2.2 mm. |
| Mesh size | |
|
|
| Gabion Baskets | |
| Length | 6m max. |
| Width | 1m |
| Height | 1m |
