Main Title |
Stress cracking behavior of HDPE geomembranes and its prevention / |
Author |
Koerner, Robert M.,
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Other Authors |
|
Publisher |
Environmental Protection Agency, Risk Reduction Engineering Laboratory, United States Environmental Protection Agency, Center for Environmental Research Information |
Year Published |
1993 |
Report Number |
EPA/600-SR-93-092 |
OCLC Number |
903955698 |
Subjects |
Geomembranes--Testing
|
Internet Access |
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
EJBD |
EPA 600-SR-93-092 |
In Binder |
Headquarters Library/Washington,DC |
10/25/2018 |
ELBD ARCHIVE |
EPA 600-SR-93-092 |
In Binder Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
ELBD RPS |
EPA 600-SR-93-092 |
repository copy |
AWBERC Library/Cincinnati,OH |
08/01/2017 |
ELBD |
EPA 600-SR-93-092 |
|
AWBERC Library/Cincinnati,OH |
11/15/2016 |
|
Collation |
3 pages : chart ; 28 cm |
Notes |
At head of title: Project Summary. "EPA/600-SR-93-092." "July 1993." |
Contents Notes |
The project summarized here focused on the stress cracking behavior and testing of geomembranes made from high-density polyethylene (HDPE). The project included a literature study of stress cracking failures in the field and exhumation of gemembranes at various sites of opportunity. In total, twenty-five cases of stress cracking have been documented since the introduction of this particular material in 1980. Because of the limitations of the currently used ASTM D 1693 "bent strip" test method for evaluating stress cracking behavior of HDPE geomembranes, a new test was developed-the notched, constant-tensile-load (NCTL) test. Eighteen commericially available sheet materials and seven field-exhumed geomembranes were evaluated using the test. The results led to the recommendation that for an HDPE geomembrane to be acceptably crack resistant, the transition time to the onset of brittle behavior must be greater than 100 hr. The results also indicated that the NCTL test is much more challenging than is the bent strip test. In addition, two related tests, a single-point, notched, constant-tensile-load (SP-NCTL) test and a seam, constant-tensile-load (SCTL) test was establised. The recommendations for both of these tests were that no failure should occur within 200 hr at an applied stress of 30% of yield stress of the sheet for five replicate tests. The implementation of this set of three tests is oriented toward resin suppliers, manufacturers, designers, and owners involved with HDPE geomembranes. By employing the recommendations made in the full report, the incidence of stress cracking of HDPE geomembranes in the field should be significantly reduced |
Place Published |
Cincinnati, OH |
Corporate Au Added Ent |
Risk Reduction Engineering Laboratory (U.S.) |
PUB Date Free Form |
1993 |
BIB Level |
m |
Medium |
unmediated |
Content |
text |
Carrier |
volume |
Cataloging Source |
RDA |
OCLC Time Stamp |
20161028071235 |
Language |
eng |
Origin |
OCLC |
Type |
CAT |
OCLC Rec Leader |
03135nam 2200373Ki 45010 |