Record Display for the EPA National Library Catalog


Main Title Stress crack testing of polyethylene geomembranes /
Author Halse, Y. H. ; Koerner, R. M. ; Lord, A. E.
Other Authors
Author Title of a Work
Koerner, Robert M.
Lord, Arthur E.
Carson, David A.
CORP Author Drexel Univ., Philadelphia, PA. Geosynthetic Research Inst.;Environmental Protection Agency, Cincinnati, OH. Risk Reduction Engineering Lab.
Publisher Environmental Protection Agency, Office of Research and Development, Risk Reduction Engineering Laboratory,
Year Published 1992
Report Number EPA/600/A-92/178; EPA-R-815692
Stock Number PB92-217132
Subjects Geomembranes--Testing ; Polyethylene--Testing
Additional Subjects Polyethylene ; Geotechnical fabrics ; Cracking(Fracturing) ; Failure ; Seams(Joints) ; Test methods ; Standards ; Mechanical properties ; Seaming ; Membranes ; Test facilities ; Linings
Library Call Number Additional Info Location Last
NTIS  PB92-217132 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 15 pages ; 28 cm
The sensitivity of high density polyethylene (HDPE) geomembranes to stress cracking is evaluated under accelerated conditions at a constant stress. The test specimens are according to ASTM D-1822, and are of the dumbbell shape with a constant length in the central section. The accelerated testing conditions consist of a 10% Igepal wetting solution in tap water, at a constant temperature of 50 C. The applied stresses are from 30% to 50% of the yield stress. It was found that most commercially available HDPE sheet material performs quite well in this type of test. Only one specimen in 80 showed any evidence of cracking and this may have been caused by other reasons. Testing of field fabricated seams, however, resulted in relatively large numbers of cracked specimens. Many of these test specimens showed signs of overgrinding and/or overheating. The results indicate that great care and excellent workmanship are required in the field fabrication of HDPE seams.
Cover title. "Project officer, David A. Carson." "EPA/600/A-92/178." Microfiche.