Evaluation of physical properties of aged geomembranes taken from landfill sites in Japan

T. Shimaoka, H. Nakayama, T. Hirai, J. Hironaka, T. Katsumi, S. Ueda, H. Kanou

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Geomembrane liners in landfills fulfill the important role of avoiding groundwater and soil pollution by preventing leakage of leachate. In order to maintain the effectiveness of the liners for a long time, they should be tolerant against physical and chemical factors prevailing in the environment under which they are used. However, due to the lack of durability data obtained from the field samples, little is known about the actual durability of liners in landfill sites. In this study, 66 geomembrane samples in total, which comprise 27-year-old PVC, 24-year-old TPO, 18-year-old EPDM, 12-year-old HDPE, etc., were taken from six different landfill sites, one test site of landfill liners, and one test site of pond liners. Tensile tests were carried out along both the Machine (MD) and Transverse (TD) direction, and retention ratio of tensile strength (=amount of change/initial × 100), retention ratio of extension at break (=amount of change/initial × 100), and retention ratio of thickness were obtained. Using the above results, the changes in the physical properties of the liners were evaluated.

Original languageEnglish
Title of host publication9th International Conference on Geosynthetics - Geosynthetics
Subtitle of host publicationAdvanced Solutions for a Challenging World, ICG 2010
PublisherBrazilian Chapter of the International Geosynthetics Society
Pages809-812
Number of pages4
ISBN (Print)9788563456007
Publication statusPublished - 2010
Event9th International Conference on Geosynthetics - Geosynthetics: Advanced Solutions for a Challenging World, ICG 2010 - Guaruja, Brazil
Duration: May 23 2010May 27 2010

Publication series

Name9th International Conference on Geosynthetics - Geosynthetics: Advanced Solutions for a Challenging World, ICG 2010

Other

Other9th International Conference on Geosynthetics - Geosynthetics: Advanced Solutions for a Challenging World, ICG 2010
CountryBrazil
CityGuaruja
Period5/23/105/27/10

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology

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