pvc geomembrane

Smooth PVC had a higher friction angle with the geotextile than textured HDPE.

This is believed to be do to reduction in contact area since the rough

side of the geotextile and the rough surface of the geomembrane are in contact at texture points only.

Nonwoven Geotextile Interface Friction Angle Values at 10% strain:

30 mil Smooth PVC 21.9

30 mil Textured PVC 19.6

30 mil File Finish PVC 17.3

60 mil Smooth HDPE 14.2

60 mil textured HDPE 17.4