HDPE geomembrane/geotextile interface shear strength

Journal Article · Fri Mar 01 04:00:00 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, Journal Name: Journal of Geotechnical Engineering Journal Issue: 3 Vol. 122; ISSN JGENDZ; ISSN 0733-9410
• Country of Publication: United States
• Language: English

Related Subjects

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