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Results of testing the performance requirements of the product
Property Unit Requirement Result
Compressive strength (initial) kPa 150 178.8
Dynamic impact resistance (mean failure energy) J ≥ 2.45 7.4
Creep resistance (residual thickness at 25 years/10°C) % ≥ 50% at 25 years/10°C 77.8
Cold bending at -30°C N/A No visible crack No visible crack
Tensile strength at yield kN/m ≥ 8 XD 9.0 Footnote (1)
elongation at break % ≥ 25 XD 25.0
  anisotropy ratio   ≥ 0.5 1.1
Heat aging for 2 weeks OIT after 2 weeks min 5Footnote (2)--> > 5 Footnote (2) 8.64
dimensional change % ≤ 1 MD -1.0, XD -0.4
weight change % ≤ 0.1 -0.1
residual compression strength % ≥ 80 of initial 105
Resistance to alkaline environment appearance N/A No visible crack No visible crack
residual compression strength % ≥ 80 of initial 118
bending resistance N/A No visible cracks No visible crack
Geotextile fabric properties grab tensile N ≥ 500 MD 650, XD 727
puncture resistance N ≥ 100 233
trapezoid tear resistance N ≥ 180 MD 241, XD 311
filtration opening size by hydrodynamic sieving µm ≤ 180; Report value 123
permittivity s-1 ≥ 0.5; Report value 0.9
UV resistance (retained strength) % retained 50% after 500 hours--> > 50% after 500 hours MD 81, XD 89
Hydraulic transmissivity (flow rate) m3/h∙m 1.33 6.96
Geometrical Properties
Orientation of the dimples - Report value Square
Number of dimples per unit area dimples/m2 Report value 1 057
Overall thickness mm Report value 7.83
Sheet thickness mm Report value 0.6
Hollow core thickness mm Report value 7.23
Anchorage performance anchorage efficiency kN/anchor Report value 0.92