80/100/2.7
Area of Application
Hexagonal netting 80/100/2.7 is a double twisted mesh product used for standard strength applications in slope stabilization solutions. The mesh can be used for both stabilizing slopes as a pinned mesh system, as well as installed to control erosion as a drape system.
Double Twisted
The terminology “double twisted” or “double twist” refers to how the wire is woven together. The term “triple twist” was also used to denote the same structure with some older specifications. The mesh is constructed from strands of wire twisted with three half revolutions (i.e 1.5 turns) and result in a non-raveling mesh that has a hexagonal opening.
Drape Mesh System
Drape mesh systems allow material behind the mesh to move down slope in a controlled manner. These systems are normally secured along the top of the system with a suspension cable, with few or no anchors below.
Anchored Mesh System
To prevent the movement of small material down a slope, the mesh can be pinned using a matrix of soil or rock anchors. In some cases steel ropes connected to anchor plates are used to further reinforce the system. Anchor spacing, depth and type must be designed by a geotechnical engineer to properly accommodate the expected forces and to reduce maintenance.
Mesh Characteristics
| Mesh Size [mm (inch)] | 80 x 100 (3.15 x 3.94) |
| Nominal Mesh Opening (D) [mm (inch)] | 80 (3.15) |
| Wire Diameter [mm (inch)] | 2.7 (0.106) |
| Selvedge Wire Diameter [mm (inch)] | 3.4 (0.134) |
| Construction | Double Twist |
| Number of Mesh Openings, Length [per m (per ft)] | 13 (4) |
| Number of Mesh Openings, Width [per m (per ft)] | 10 (3) |
| Fastener Diameter [mm (inch)] | 3.0 (0.12) |
Wire Properties
| Tensile Strength [N/mm2 (ksi)] | 350 - 550 (51 - 80) |
| Elongation [%] | > 10 |
| Corrosion Protection | Zn or Zn-Al Galvanized or Zn with PVC |
| Min. Mass of Coating [g/m2 (oz/ft2)] | 245 (0.80) |
| Coating Class | Class A |
Mesh Strength Properties
| Tensile Strength, Lengthwise [kN/m (lbf/ft)] | 52 (3,591) |
| Tensile Strength, Crosswise [kN/m (lbf/ft)] | 27 (1,816) |
| Puncture Strength [kN (lbf)] | n/a |
Standard Roll Sizes
| Length (L) [m (ft)] | 25 (82) |
| Width (W) [m (ft)] | 3.0 (9.8) |
| Unit Weight [kg/m2 (lb/ft2)] | 1.75 (0.36) |
| Roll Weight [kg (lbs)] | 131 (289) |
Mesh Dimensions
Panel Dimensions
Seam Connection
*Connection details according to state of the art practice. Actual seam connection to be determined by a qualified engineer in accordance with local regulations.