This page was printed from https://geosyntheticsmagazine.com

Friction angle

October 1st, 2010 / By: / Geomembranes, GMA Techline

RE: Friction angle
What sort of phi (interface friction angle) would you expect between #57 crushed limestone gravel (0.5in.–1.5in.) and a textured HDPE membrane? Surely more than 10 degrees, right? What would a conservative estimate be, I wonder?
(Brian | Kentucky)

Reply: It would be more on the order of 25–30 degrees depending on the normal stress.

Bob Koerner | GMA Techline

Leave a Reply

Your email address will not be published. Required fields are marked *

Comments are moderated and will show up after being approved.