GAS PEAMEABILITY OF GAS-PERMEABLE/WATERPROOF SHEET UNDER WET CONDITION

GAS PEAMEABILITY OF GAS-PERMEABLE/WATERPROOF SHEET UNDER WET CONDITION

We have developed gas-permeable/waterproof sheet (GPWS), comprising a micro-porous sheet which is waterproof but have gas permeability, coated with nonwovens to protect and reinforce it, and investigated applicability of GPWS as a landfill cap cover. In this study, gas permeability of GPWS under wet...

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Veröffentlicht in:Geosynthetics engineering journal 2013, Vol.28, p.117-120
Hauptverfasser: NISHIMURA, Masaki, AKAI, Tomoyuki, KAMON, Masashi
Format: Artikel
Sprache:eng
Schlagworte:
Coating
Differential pressure
Geosynthetics
Landfills
Permeability
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Beschreibung
Zusammenfassung:We have developed gas-permeable/waterproof sheet (GPWS), comprising a micro-porous sheet which is waterproof but have gas permeability, coated with nonwovens to protect and reinforce it, and investigated applicability of GPWS as a landfill cap cover. In this study, gas permeability of GPWS under wet condition was evaluated. Results showed that GPWS exhibits sufficient gas permeability under wet condition that upper nonwoven layer of GPWS is saturated, when slight differential pressure (at least 0.1 kPa) is applied.
ISSN:1344-6193
1883-146X
DOI:10.5030/jcigsjournal.28.117