Effect of temperature on shear strength of two geomembrane-geotextile interfaces

AKPINAR M. V., Benson C.

GEOTEXTILES AND GEOMEMBRANES, vol.23, no.5, pp.443-453, 2005 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 23 Issue: 5
  • Publication Date: 2005
  • Doi Number: 10.1016/j.geotexmem.2005.02.004
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.443-453
  • Karadeniz Technical University Affiliated: No


This study was conducted to assess whether temperature affected the shear strength of interfaces between a nonwoven needle-punched polypropylene geotextile (GT) and two high-density polyethylene geomembranes [smooth (GMS) and textured (GMT)]. Testing was conducted using a double-interface shear device (DISD) enclosed in a constant temperature chamber. Tests were conducted at temperatures ranging between 0 and 33 degrees C at normal stresses between 7.5 and 49.5 kPa and with displacement rates between 0.9 and 1.5 mm/min. Only small changes in interface strength were observed for the range of temperatures that was considered. Increasing the temperature from 0 to 33 degrees C resulted in an increase in the peak interface friction angle of 2.9 degrees for the GMS-GT interface and 2.3 degrees for the GMT-GT interface, regardless of the displacement rate. Similar changes were observed for the post-peak friction angle. (c) 2005 Elsevier Ltd. All rights reserved.