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Results of testing the performance requirements of the product
Property Unit Requirement Result
Compressive strength (initial) kPa 150 269
Dynamic impact resistance (mean failure energy) J ≥ 2.45 2.6
Creep resistance (residual thickness at 25 years/10°C) % ≥ 50% at 25 years/10°C 81.6
Cold bending at -30°C N/A No visible crack No visible crack
Tensile strength at yield kN/m ≥ 8 XD 15.1 Footnote (1)
elongation at break % ≥ 25 XD 34.3
  Anisotropy Ratio   ≥ 0.5 1.0
Heat aging for 8 weeks dimensional change % ≤ 1 MD -0.8, XD -0.2
weight change % ≤ –0.1 -0.1
residual compression strength % ≥ 80 of initial 100.2
Resistance to alkaline environment appearance N/A No visible crack No visible crack
residual compression strength % ≥ 80 of initial 100.4
bending resistance N/A No visible cracks No visible crack
Geotextile fabric properties grab tensile N ≥ 500 MD 650, XD 713
puncture resistance N ≥ 100 236
trapezoid tear resistance N ≥ 180 MD 301, XD 320
filtration opening size by hydrodynamic sieving µm ≤ 180; Report value 120
permittivity s-1 ≥ 0.5; Report value 1.5
UV resistance (retained strength) % retained 50% after 500 hours--> > 50% after 500 hours MD 78.2, XD 88.8
Hydraulic transmissivity (flow rate) m3/h∙m 1.33 4.9
Geometrical Properties:
Orientation of the dimples - Report value Diagonal
Number of dimples per unit area dimples/m2 Report value 1 554
Overall thickness mm Report value 8.67
Sheet thickness mm Report value 0.51
Hollow core thickness mm Report value 8.16
Anchorage performance anchorage efficiency kN/anchor Report value 1.13