A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The Durability of Exposed Geomembrane Covers
A most frequently asked question regarding all types of geomembranes is, “How long will they last?” This paper answers the question for exposed geomembranes assuming that they were properly designed and installed. Ultraviolet radiation, elevated temperature and full oxygen are available which shortens the service lifetime of a geomembrane. Ultraviolet fluorescent tube weathering devices per ASTM D7238 were used for incubation purposes. Five different geomembranes were evaluated. Each material was incubated at 80, 70, and 60°C until 50% reduction of strength and elongation occurred. The data was then extrapolated down to 20°C for laboratory halflife values and for comparison with the nonexposed condition. Results for geomembranes vary from 47 to 97 years with high density polyethylene (HDPE) being the highest.
The Durability of Exposed Geomembrane Covers
A most frequently asked question regarding all types of geomembranes is, “How long will they last?” This paper answers the question for exposed geomembranes assuming that they were properly designed and installed. Ultraviolet radiation, elevated temperature and full oxygen are available which shortens the service lifetime of a geomembrane. Ultraviolet fluorescent tube weathering devices per ASTM D7238 were used for incubation purposes. Five different geomembranes were evaluated. Each material was incubated at 80, 70, and 60°C until 50% reduction of strength and elongation occurred. The data was then extrapolated down to 20°C for laboratory halflife values and for comparison with the nonexposed condition. Results for geomembranes vary from 47 to 97 years with high density polyethylene (HDPE) being the highest.
The Durability of Exposed Geomembrane Covers
Koerner, George R. (author) / Koerner, Robert M. (author)
Geotechnical Frontiers 2017 ; 2017 ; Orlando, Florida
Geotechnical Frontiers 2017 ; 139-147
2017-03-30
Conference paper
Electronic Resource
English
The Durability of Exposed Geomembrane Covers
| British Library Conference Proceedings | 2017
The durability of exposed geomembrane covers
| British Library Online Contents | 2017
| TIBKAT | 2018
The Benefits of Exposed Geomembrane Covers for Intermediate Applications at Landfills
| British Library Conference Proceedings | 2017
Factors Influencing HDPE Geomembrane Durability
| British Library Conference Proceedings | 2003