HPN+ 60/60/4.6

Area of Application

High Performance Netting + 60/60/4.6 is a single twisted mesh product used for high strength slope stabilization solutions. Like other rectangular mesh, it conforms to slopes better than hexagonal mesh, yielding maximum surface contact for better control of erosion. Both draped and anchored mesh systems are common applications.

The strength of a mesh product is most often characterized by its tensile strength and puncture strength. In some cases, a tensile strength of an individual wire is specified but this value is not relevant for the design of a draped nor anchored mesh systems. Especially for the latter, of critical importance is the characterization of how the mesh performs in association with the specific anchor plate. Puncture strength should always be carried out using the actual anchor plate as well as in open-air/unsupported conditions. HPN and HPN+ are the highest tensile strength single-twisted wire mesh products on the market having symmetrical strength parameters. Other products have significantly reduced tensile strengths perpendicular to their weave.

Topographic Fit

The wire used for manufacturing HPN and HPN+ is high tensile yet retains its malleable nature. This, in combination with its rectangular form, allows it to conform to difficult topography, helping to maximize contact with the slope, which is one of the primary goals in designing both draped and anchored mesh systems.High Performance Netting + 60/60/4.6 is a single twisted mesh product used for high strength rockfall mitigation solutions. Like other rectangular mesh, it conforms to slopes better than hexagonal mesh, yielding maximum surface contact for better control of erosion. Both draped and anchored mesh systems are common applications.

Draped Mesh System

Draped 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. A major consideration for draped mesh systems is not only the strength but the unit weight of the material. The higher the weight, the better the system will resist impacts. HPN and HPN+ are used where dynamic loading of the draped mesh system require greater mechanical impedance than standard double-twist.

Anchored Mesh System

To prevent the movement of small material down a slope, the mesh may be pinned using a matrix of soil or rock anchors, possible with the combination of steel ropes and anchor plates. Such systems are termed slope retention or anchored mesh systems. The anchor spacing, depth and type must be designed by a geotechnical engineer to properly accommodate the expected forces and to reduce maintenance.

Revegetation Mats

A common practice for anchored mesh systems is to apply geotextile or fiber mats beneath the system to reduce the lost of fine material and encourage revegetation.

Mesh Characteristics
Mesh Size (a x a)
[mm (inch)]
60 x 60
(2.36 x 2.36)
Opening Angle (α)90°
Wire Diameter
[mm (inch)]
4.6
(0.18)
ConstructionSingle Twist
Number of Mesh Openings, Length
[per m (per ft)]
11
(3.4)
Number of Mesh Openings, Width
[per m (per ft)]
11
(3.4)
Wire Properties
Tensile Strength
[N/mm2 (ksi)]
840 - 990
(122- 144)
Corrosion ProtectionZn-Al Galvanized
Min. Mass of Coating
[g/m2 (oz/ft2)]
280
(0.92)
Coating ClassClass A
Mesh Strength Properties
Tensile Strength, Lengthwise
[kN/m (lbf/ft)]
>150
(>10,278)
Tensile Strength, Crosswise
[kN/m (lbf/ft)]
>150
(>10,278)
Puncture Strength, Free-air
[kN (lbf)]
102
(22,931)
Puncture Strength, Supported
[kN (lbf)]
392
(88,125)
Standard Roll Sizes
Length (L)
[m (ft)]
6 - 15
(20 - 49)
Width (W)
[m (ft)]
2.0 - 3.5
(6.6 - 11.5)
Unit Weight
[kg/m2 (lb/ft2)]
4.56
(0.93)
Roll Weight
[kg (lbs)]
55 - 239
(121 - 527)
Mesh Dimensions
Panel Dimensions
Seam Connection