Description
Concerns the freezing of water in the top seal materials and potential consequences thereof.
SKB Number
SKB FEP Number
TS02
Main Category
Main category for FEP
Internal process
System Component
System component to which the FEP applies
Top seal
Handling
Explanation of how the FEP is treated
Intact canister, Resaturation/ "thermal" period: Neglected since this requires permafrost conditions (probably not entirely true, since the top of the seal may freeze during winter, see "long term").
Intact canister, Long-term after saturation and "thermal" period: The top seal will freeze during permafrost periods. However, the consequences can be neglected due to the high hydraulic conductivity of the material.
References
Bibliographic references to obtain more information
SR-Site Buffer, backfill and closure process report, TR-10-47, Section(s) 2.6.3, 7.1.2