Laboratory Evaluation of Interactions in the Degradation of a Polypropylene Geotextile in Marine Environments

Table 1

Main properties of the geotextile (undamaged sample).

Property	Test standard	Geotextile
Mass per unit area (g·m^−2)	EN ISO 9864 [31]	502 (±25)
Thickness at 2 kPa (mm)	EN ISO 9863-1 [32]	3.81 (±0.08)
Tensile strength MD^a (kN·m^−1)	EN 29073-3 [33]	26.64 (±1.41)
Elongation at the maximum load MD^a (%)	EN 29073-3 [33]	71.6 (±3.2)
Tensile strength CMD^b (kN·m^−1)	EN 29073-3 [33]	13.43 (±1.03)
Elongation at the maximum load CMD^b (%)	EN 29073-3 [33]	122.9 (±6.2)
CBR puncture resistance (kN)	EN ISO 12236 [34]	2.69 (±0.15)
Permeability (VIH50)^c (mm·s^−1)	EN ISO 11058 [35]	39.7 (±5.0)
Pore size (O90)^d (m)	EN ISO 12956 [36]	66.0 (±4.9)

The 95% confidence intervals are given in parentheses; ^aMD, machine direction of production; ^bCMD, cross-machine direction of production; ^cVI_H50, velocity index for a head loss of 50 mm; ^dO₉₀, characteristic opening size.