HDPE geomembrane/geotextile interface shear strength

Journal Article · Fri Mar 01 00:00:00 EST 1996 · Journal of Geotechnical Engineering

DOI:https://doi.org/10.1061/(ASCE)0733-9410(1996)122:3(197)· OSTI ID:207864

Stark, T D; Eid, H T ^[1]; Williamson, T A ^[2]

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1. Univ. of Illinois, Urbana, IL (United States)
2. GeoSyntec Consultants, Huntington Beach, CA (United States)

This paper describes torsional ring shear tests on interfaces comprised of high-density polyethylene (HDPE) geomembranes/nonwoven geotextiles and a drainage geocomposite. Four textured geomembranes with three different manufacturing techniques are utilized to investigate the effect of geomembrane texturing on interface shear resistance. In addition, the effects of geotextile fiber type, fabric style, polymer composition, calendering, and mass per unit area on textured HDPE geomembrane interface strengths are investigated. The textured HDPE geomembrane/nonwoven geotextile and drainage geocomposite interfaces exhibited a large post-peak strength loss. This strength loss is attributed to pulling out or tearing of filaments from the nonwoven geotextile and orienting them parallel to shear and polishing of the texturing on the geomembrane. At high normal stresses, the strength loss can be caused by damage to or removal of the texturing on the geomembrane surface.

• OSTI ID: 207864
• Journal Information: Journal of Geotechnical Engineering, Vol. 122, Issue 3; Other Information: PBD: Mar 1996
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
36 MATERIALS SCIENCE
SANITARY LANDFILLS
LINERS
SHEAR PROPERTIES
MATERIALS TESTING
ULTIMATE STRENGTH
HAZARDOUS MATERIALS
WASTE DISPOSAL
PERFORMANCE