EP 0936315 B1 20030903 - Clay liner
Title (en)
Clay liner
Title (de)
Ton-Deckschicht
Title (fr)
Revêtement en argile
Publication
Application
Priority
- US 2393298 A 19980213
- US 13320798 A 19980813
Abstract (en)
[origin: EP0936315A1] A geosynthetic clay liner (GCL) is provided that includes a layer of water-swellable smectite clay (12), e.g., sodium montmorillonite disposed between a carrier sheet and a cover sheet. An inner sheet (13), disposed against the surface to be protected against water penetration - either the carrier sheet or the cover sheet - is made of material having a more open structure that allows hydrated bentonite to migrate through it. The other, e.g., outer sheet (11), includes a more closed structure and, therefore, precludes substantial bentonite migration through it. The GCL can be held together in any manner known, e.g., by adhesively affixing the clay to the sheet material layers, or by needle-punching or stitching the sheet materials together surrounding the intermediate clay layer. <IMAGE>
IPC 1-7
IPC 8 full level
E02B 3/04 (2006.01); E02D 31/00 (2006.01); E04B 1/66 (2006.01)
CPC (source: EP KR)
E02D 31/004 (2013.01 - EP KR); E02D 2300/004 (2013.01 - KR); E02D 2300/0051 (2013.01 - KR)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0936315 A1 19990818; EP 0936315 B1 20030903; AT E248955 T1 20030915; DE 69817753 D1 20031009; DE 69817753 T2 20040715; DK 0936315 T3 20040112; ES 2206849 T3 20040516; JP 2000110140 A 20000418; KR 19990071415 A 19990927; SG 74655 A1 20000822
DOCDB simple family (application)
EP 98307342 A 19980910; AT 98307342 T 19980910; DE 69817753 T 19980910; DK 98307342 T 19980910; ES 98307342 T 19980910; JP 889799 A 19990118; KR 19980043286 A 19981016; SG 1998003597 A 19980910