| Issue |
E3S Web Conf.
Volume 644, 2025
EUROGEO 8 - 8th European Conference on Geosynthetics
|
|
|---|---|---|
| Article Number | 02021 | |
| Number of page(s) | 10 | |
| Section | Testing and Quality | |
| DOI | https://doi.org/10.1051/e3sconf/202564402021 | |
| Published online | 01 September 2025 | |
Performance testing of strained BGM welds
1 IKO Coletanche USA, Suite 400, 531 Roselane St, Marietta, GA 30060, USA
2 Axter Australia 1302 / 50 Cavill Ave, Surfers Paradise, Queensland 4217, Australia
* Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Abstract
Geomembranes are essential for liquid containment, with bituminous geomembranes (BGMs) benefiting from a unique composition of polymer-modified bitumen and polyester geotextile. This study examines the strain response of BGM liner systems, focusing on weld seams, which are typically the weakest points. Through uni-axial creep and multi-axial burst (MAB) testing, the viscoelastic behavior of BGM welds was investigated. Creep tests showed no rupture at 30% strain and showed substantial stress relaxation. MAB tests demonstrated that both BGM material and welds could handle strains nearing 30% before ultimate rupture suggesting BGMs have good strain tolerance compared to other geomembranes. This research provides insights into BGM performance under stress, guiding design and installation in containment applications. Further research is recommended to refine stress calculations for composite materials like BGMs and to broaden the comparative analysis with other geomembrane types.
© The Authors, published by EDP Sciences, 2025
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