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Mechanical damage of geosynthetics used in the base liner system of landfills caused by different aggregates

Title
Mechanical damage of geosynthetics used in the base liner system of landfills caused by different aggregates
Type
Article in International Conference Proceedings Book
Year
2019-10-28
Authors
Maria de Lurdes Lopes
(Author)
FEUP
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José Ricardo Carneiro
(Author)
FEUP
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Ana Cláudia Brás
(Author)
Other
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Conference proceedings International
Pages: 692-699
8th International Congress on Environmental Geotechnics, ICEG 2018
28 October 2018 through 1 November 2018
Indexing
Publicação em Scopus Scopus - 0 Citations
Scientific classification
FOS: Engineering and technology
CORDIS: Technological sciences
Other information
Authenticus ID: P-00T-JAS
Resumo (PT):
Abstract (EN): The installation process may cause unwanted changes in the mechanical behaviour of the geosynthetics. In this work, some geosynthetics used in the base liner system of landfills (a combination of a geotextile, a geomembrane and a geosynthetic clay liner) were submitted to mechanical damage under repeated loading tests (procedure adapted from EN ISO 10722), being monitored the changes occurred in their short-term behaviour. The mechanical damage under repeated loading tests consisted in placing the geosynthetics between a flexible base (granite residual soil with a relative density of 80%) and an aggregate and submitting them to cyclic dynamic loading. The geosynthetics were damaged with a natural aggregate (gravel 14/20), a recycled ceramic aggregate and corundum (synthetic aggregate used in EN ISO 10722). The damage suffered by the geosynthetics was evaluated by monitoring changes in their tensile, tearing (only for the geomembrane) and static puncture properties. © Springer Nature Singapore Pte Ltd. 2019.
Language: English
Type (Professor's evaluation): Scientific
No. of pages: 8
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