Abstract
The primary goal of this study was to evaluate the service life of buried HDPE (High density polyethylene) notched/un-notched pipes. The performance of notched and un-notched buried pipes subjected to live loading was studied in soil chambers for three levels of service loading. The long-term behavior was accelerated with super-ambient temperatures. Strains and diametral changes were measured for 10,000 hours. Extrapolation of the long-term performance at ambient temperature, based on the Bi-directional and the Arrhenius methods, showed that the deflection threshold (7.5% vertical change of diameter) as the governing failure condition, and similar life predictions for Bi-directional and Arrhenius methods, with service lives of approximately 30 and 80 years at ambient temperature, for the notched and un-notched pipes, respectively.
Original language | English |
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Pages | 494-505 |
Number of pages | 12 |
Publication status | Published - 2001 |
Externally published | Yes |
Event | 33rd International SAMPE Technical Conference -Advancing Affordable Materials Technology- - Seattle, WA, United States Duration: 5 Nov 2001 → 8 Nov 2001 |
Conference
Conference | 33rd International SAMPE Technical Conference -Advancing Affordable Materials Technology- |
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Country/Territory | United States |
City | Seattle, WA |
Period | 5/11/01 → 8/11/01 |
Keywords
- Composite structures
- Infrastructure
- Testing/evaluation
- Viscoelasticity