Description
As long as the copper plate is intact there will be no transport of radionuclides in or through the bottom plate. If the copper is corroded and the concrete is degraded the bottom plate may act as a porous media with a rather high hydraulic conductivity. This means that the bottom plate could act as a sink for radionuclides and as a source for canister corrodants.
SKB Number
SKB FEP Number
BP16
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
Failed canister, Resaturation/ "thermal" period: Included in COMP23 (No failures are expected this period).
Failed canister, Long-term after saturation and "thermal" period: Included in COMP23.
References
Bibliographic references to obtain more information
SR-Site Buffer, backfill and closure process report, TR-10-47, Section(s) 2.7.3, 8.5.2