Description

Freezing of the bottom plate is of no significance, since no long-term performance is expected from the concrete. The same process takes place in the material around the bottom plate as described in the corresponding process description for the buffer, see FEP Bu03. The bottom plate will not change anything in respect to freezing and thawing.

SKB Number

SKB FEP Number

BP02

Main Category

Main category for FEP

Internal process

System Component

System component to which the FEP applies

Bottom plate in deposition holes

Handling

Explanation of how the FEP is treated

Intact canister, Resaturation/ "thermal period: Neglected since this requires permafrost conditions. Intact canister, Long-term after saturation and "thermal" period: Of no significance since no long-term performance is expected from the bottom plate.

References

Bibliographic references to obtain more information

SR-Site Buffer, backfill and closure process report, TR-10-47, Section(s) 2.7.3, 8.1.2