Journal article
Effects of Thickness on the Aging of HDPE Geomembranes
Journal of geotechnical and geoenvironmental engineering, v 136(2), pp 299-309
01 Feb 2010
Abstract
The results of an accelerated aging test program to evaluate the effect of thickness on the depletion of antioxidants from high-density polyethylene (HDPE) geomembranes and subsequent degradation of the physical properties are reported. Three commercially available HDPE geomembranes having nominal thicknesses of 1.5, 2.0, and 2.5 mm were examined. The geomembranes were immersed in a synthetic leachate at 85, 70, 55, and 22 degrees C and tested for oxidative induction time, crystallinity, melt index (MI), tensile properties, and stress-crack resistance. The antioxidant depletion rate for the 1.5 mm geomembrane was faster than for the 2.0 and 2.5 mm geomembranes. Antioxidant depletion time was predicted at representative landfill temperatures of 20-60 degrees C using Arrhenius modeling and was found to increase with geomembrane thickness for the three geomembranes examined. Based on the results of crystallinity, MI, and stress-crack resistance, the degradation of the geomembrane was slowest for the thickest geomembrane. These results suggest that a thicker geomembrane may have a longer service life (other things being equal).
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Details
- Title
- Effects of Thickness on the Aging of HDPE Geomembranes
- Creators
- R. Kerry Rowe - Drexel UniversityM. Z. Islam - Drexel UniversityY. G. Hsuan - Drexel University
- Publication Details
- Journal of geotechnical and geoenvironmental engineering, v 136(2), pp 299-309
- Publisher
- Asce-Amer Soc Civil Engineers
- Number of pages
- 11
- Grant note
- Natural Science and Engineering Research Council of Canada (NSERC); Natural Sciences and Engineering Research Council of Canada (NSERC) Ontario Ministry of Environment
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Civil, Architectural, and Environmental Engineering
- Web of Science ID
- WOS:000273674100003
- Scopus ID
- 2-s2.0-77953307089
- Other Identifier
- 991019167545004721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Engineering, Geological
- Geosciences, Multidisciplinary