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Comparison of the effects of testing conditions and chemical exposure on geomembranes using the comprehensive testing system

✍ Scribed by Richard Ian Stessel; William Martin Barrett Jr.; Xiaojun Li

Publisher: John Wiley and Sons
Year: 1998
Tongue: English
Weight: 215 KB
Volume: 70
Category: Article
ISSN: 0021-8995
DOI: 10.1002/(sici)1097-4628(19981212)70:11<2097::aid-app3>3.0.co;2-j

No coin nor oath required. For personal study only.

✦ Synopsis

Chemical compatibility tests were conducted on high-density polyethylene geomembrane samples using the Comprehensive Testing System (CTS) under low-and high-displacement conditions. CTS development between the two sets of data (low-and high-displacement) was found to significantly reduce the friction within the testing cell. This friction reduction was apparent from the decrease in delta modulus from the larger values obtained during low-displacement testing to the smaller values obtained during high-displacement testing. The results of the high-displacement testing showed statistically significant differences between delta modulus results at the 95% confidence interval (probability ϭ 0.050), which was not possible with the low-displacement test configuration. Further, the high-displacement testing showed that the more soluble the test chemical was in polyethylene, the lower the resulting delta modulus.

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