Description

For the copper plate (copper metal surface), no sorptio reactions are expected to take place. In the concrete part of the bottom plate, radionuclides and major ions may undergo a range of interactions with the matrix (hardened cement paste). In comparison, interaction with the aggregate material can often be neglected. Exception to this may be sorption of simple cations, especially Cs, to layer silicate materials contained in the aggregate material derived from crystalline rock, see FEP CA11.

SKB Number

SKB FEP Number

BP10

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: Sorption may occur in the bottom plate, but is pessimistically neglected. Intact canister, Long-term after saturation and "thermal" period: Sorption may occur in the bottom plate, but is pessimistically neglected.

References

Bibliographic references to obtain more information

SR-Site Buffer, backfill and closure process report, TR-10-47, Section(s) 2.7.3, 8.4.3