BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Talks.cam//talks.cam.ac.uk//
X-WR-CALNAME:Talks.cam
BEGIN:VEVENT
SUMMARY:Short and long-term leakage through composite liners - Professor K
 erry Rowe\, Queen’s University\, Kingston\, Ontario\, Canada
DTSTART:20130709T150000Z
DTEND:20130709T163000Z
UID:TALK45668@talks.cam.ac.uk
CONTACT:Anama Lowday
DESCRIPTION:The factors that may affect short-term leakage through composi
 te liners are examined. It is shown that the leakage \nthrough composite l
 iners is only a very small fraction of that expected for either a geomembr
 ane (GM) or clay liner (CL) \nalone. However\, the calculated leakage thro
 ugh holes in a GM in direct contact with a clay liner is typically substan
 tially \nsmaller than that actually observed in the field. It is shown tha
 t calculated leakage taking account of typical connected \nwrinkle lengths
  observed in the field explains the observed field leakage through composi
 te liners. Provided that care is \ntaken to avoid excessive connected wrin
 kle lengths\, the leakage through composite liners is very small compared 
 to a \ntypical GM or CL alone. It is shown that the leakage through compos
 ite liners with a geosynthetic clay liner (GCL) is \ntypically much less t
 han for composite liners with a compacted clay liner (CCL). Finally\, fact
 ors that will affect long-term \nleakage through composite liners are disc
 ussed. It is concluded that composite liners have performed extremely well
  in \nfield applications for a couple of decades and that recent research 
 both helps understand why they have worked so well\, \nbut also provides n
 ew insight into issues that need to be considered to ensure excellent long
 -term liner performance of \ncomposite liners—especially for application
 s where the liner temperature can exceed about 35degC. 
LOCATION:Engineering Department - Lecture Room 6
END:VEVENT
END:VCALENDAR