The article describes the ongoing research project that is investigating the development of a relationship between geomembranes sheet temperature and air-channel pressure required to ensure a required seam strength for fPP geomembranes. The seam peel and burst tests were performed independently of each other. The seam specimens were lin.-wide strips and were allowed to equilibrate to the test temperature before testing commenced. Each specimen was tested at a cross-head rate of travel of 20in./minute. If no leaks were present, the air pressure was increased at 5-psi intervals with a brief pause between each interval to ensure no leakage was occurring until the seam burst. A relationship between the peel stress and the hoop stress may be a better alternative, but calculating the hoop stress requires measuring the width of the air channel in every seam tested, which is probably impractical for a field test.
|Original language||English (US)|
|Number of pages||6|
|State||Published - Apr 2013|
ASJC Scopus subject areas
- Geotechnical Engineering and Engineering Geology
- Polymers and Plastics