Journal Published Online: 01 December 1993
Volume 16, Issue 4

Notched Constant Tensile Load (NCTL) Test for High-Density Polyethylene Geomembranes



A modification of an old test method, the notched constant tensile load (NCTL) test, is reintroduced to evaluate the stress-cracking performance of high-density polyethylene (HDPE) geomembranes. In this modified test, notched dumbbell-shaped specimens are subjected to a range of constant tensile loads in a 10% Igepal (CO-630) solution at 50°C. The method has been proposed to ASTM and is being considered by a task group within Committee D-35 on Geosynthetics. This paper presents the test procedures, results of a reproducibility study, and four sets of interlaboratory tests.

Author Information

Hsuan, YG
Drexel University, Philadelphia, PA
Koerner, RM
Drexel University, Philadelphia, PA
Lord, AE
Drexel University, Philadelphia, PA
Pages: 8
Price: $25.00
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Stock #: GTJ10285J
ISSN: 0149-6115
DOI: 10.1520/GTJ10285J