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Technical Manual


Technical Data Sheet


Installation Guidelines


Project Specifications


Material Safety Data Sheet

 

 
Protectamesh™ HD Rockshield HD (Heavy Duty) Pipeline Protection Mesh

Protectamesh™ HD rockshield mesh is a heavy duty thick pipeline protection mesh manufactured by Boddingtons for protecting pipeline coatings from rock backfills. Protectamesh™ HD Rockshield acts as a rock guard padding around the pipes during and after backfill operations by cushioning the impact of rocks which can cause damage to the pipe coating and result in the corrosion of the pipeline. Protectamesh™ HD rockshield offers high compression strength and resistance to destructive forces, both during and after the backfill operations. Rockshield mesh is essential for projects where pipelines will be constructed in rocky terrain.

Protectamesh™ HD rock shield pipeline protection mesh is a three dimensional bi-planar extruded diamond structured mesh manufactured from high-density polyethylene. The plastic mesh offers a consistent thickness throughout the width of each roll or pad to provide full width protection to the pipeline during backfill operations minimising holidays (pipeline coating damage) that can cause corrosion. Protectamesh™ HD rockshield rock guard mesh offers protection from abrasive objects after installation, prohibiting geologic movements from damaging your pipeline.

Protectamesh HD Rockshield

Protectamesh™ HD rockshield is flexible for easy handling, even at low temperatures and is chemically inert ensuring that plastic mesh will not rot. The open plastic mesh design allows the flow of water around the pipe for cathodic protection.

Protectamesh HD rockshield pipeline installation Protectamesh HD rock shield mesh  protects the pipeline coating Protectamesh HD rockshield pipeline mesh wrapping

Protectamesh™ HD rockshield offers a higher compression strength, greater impact resistance, greater impact and tensile strength, while maintaining half the weight of the competition

  • Mesh thickness of 10mm (0.40”)
  • Supplied in widths 1.53m or 1.83m (5ft or 6ft)
  • Can be supplied in rolls or in pads for easy installation (cut pieces)

Protectamesh™ HD rockshield pipe protection mesh can be installed in three methods using either ‘Longitudinal wrapping’ (fig.a), ‘Latitudinal wrapping’ (fig.b) or ‘Spiral wrapping’ (fig.c) and secured by means of polypropylene strapping as shown by the diagram below.

Protectamesh HD rockshield mesh pipe protection diagram

Technical Data - Physical Characteristics

Physical Characteristics
Data / Measurement
Structure
Diamond Mesh
Polymer
Polyethylene
Colour
Black
Width
1.22m, 1.53m or 1.83m (4ft, 5ft or 6ft)
Length
Rolls or Pads as required
Thickness
10mm (0.40")
Weight
1550g/m²/ 0.32lb/ft²
Aperture Size
4mm x 4mm (0.16" x 0.16") nominal

Technical Data - Technical Characteristics

Measurement
Results
Test Method
Elongation at Max Strength (MD)
139%
ASTM D4595
Elongation at Max Strength (TD)
110%
ASTM D4595
Tear Strength (MD)
6.8kg / 15.0lbs
ASTM D624
Tear Strength (TD)
7.35kg / 16.2lbs
ASTM D624
Tensile Strength
796kg/m / 44.6lbs/inch
ASTM D4595
Impact Strength
7.94m/kg / 141.9 inch/lbs.
ASTM G14 spherical point
Impact Resistance
No Failure at 150mm rock / 6"
ASTM G13 MOD
Compressive Strength
620kPa / 90 psi (50% compression)
ASTM D1621
Melt Temperature
108°C / 226.4°F
ASTM E794
Freeze Data
No failure -34°C/-30°F (180° Bend)
CUSTOM
Cathodic Protection
No inhibiting effect
CUSTOM

All the above information is given in good faith, but the figures are typical values only and should not be taken as a guarantee of performance. Manufacturing tolerances for dimensional and technical characteristics apply and are available on request.