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