Cable & pipeline protection

Cable & pipeline protection

Protectamesh HD Rockshield Mesh

For protecting damage from rocky backfill

Application Function

Protection

Market Sectors

Pipelines / Utilities


Protectamesh™ HD rockshield mesh is a heavy duty thick pipeline protection mesh manufactured by Terram 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 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 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.


Technical Data - Physical Characteristics

Physical CharacteristicsData / Measurement
StructureDiamond Mesh
PolymerPolyethylene
ColourBlack
Width1.22m, 1.53m or 1.83m (4ft, 5ft or 6ft)
LengthRolls or Pads as required
Thickness10mm (0.40")
Weight1550g/m²/ 0.32lb/ft²
Aperture Size4mm x 4mm (0.16" x 0.16") nominal


Technical Data - Technical Characteristics

MeasurementResultsTest Method
Elongation at Max Strength (MD)139%ASTM D4595
Elongation at Max Strength (TD)110%ASTM D4595
Tear Strength (MD)6.8kg / 15.0lbsASTM D624
Tear Strength (TD)7.35kg / 16.2lbsASTM D624
Tensile Strength796kg/m / 44.6lbs/inchASTM D4595
Impact Strength7.94m/kg / 141.9 inch/lbs.ASTM G14 spherical point
Impact ResistanceNo Failure at 150mm rock / 6"ASTM G13 MOD
Compressive Strength620kPa / 90 psi (50% compression)ASTM D1621
Melt Temperature108°C / 226.4°FASTM E794
Freeze DataNo failure -34°C/-30°F (180° Bend)CUSTOM
Cathodic ProtectionNo inhibiting effectCUSTOM
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.


Downloads

TERRAM for Pipeline and Utilities
Protectamesh HD Rockshield
Protectamesh HD Rockshield
ROCKSHIELD Gas pipeline protection from collars (Algeria)
ROCKSHIELD Protecing pipeline from backfilling damage (Ireland)