Larissa Friedenberg
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View article: A systematic strategy for the calibration of crushed salt constitutive models
A systematic strategy for the calibration of crushed salt constitutive models Open
Crushed salt is aimed to act as long-term barrier in a HLW repository in rock salt. The development of its sealing effect against radionuclide migration is determined by the porosity/permeability evolution governed by crushed salt compacti…
View article: Confidence building in the prediction of crushed salt as long-term barrier
Confidence building in the prediction of crushed salt as long-term barrier Open
The safety concept of a repository in rock salt is based on a multi-barrier system in that barrier’s sealing effects are time dependent. In short-term of the post-closure phase, the safe containment of radionuclides is provided by the wast…
View article: A multi-scale approach for the investigation of crushed salt as long-term barrier in a rock salt repository (MEASURES)
A multi-scale approach for the investigation of crushed salt as long-term barrier in a rock salt repository (MEASURES) Open
In the concept for a high-level nuclear waste (HLW) repository in rock salt, crushed salt fulfils the crucial role as long-term barrier together with the surrounding geological barrier rock salt. Crushed salt is a long-term stable material…
View article: The Decay Days: History, Purpose, Challenges, and Future Perspectives
The Decay Days: History, Purpose, Challenges, and Future Perspectives Open
The Decay Days (Deep gEologiCAl repositorY Days) represent a unique network initiated to foster open scientific exchange among early-career researchers working in the field of nuclear waste disposal. The idea originated from the need for a…
View article: Benchmarking for verification and validation of TH2M simulators: Current results from the BenVaSim II project
Benchmarking for verification and validation of TH2M simulators: Current results from the BenVaSim II project Open
Numerical simulations play an important role in predicting the long-term behavior (up to 1,000,000 years) of potential repositories for high level radioactive waste (HLW) in deep geological formations. To provide reliable and realistic pre…
View article: Testing and simulation of a large-scale Sandwich shaft sealing system
Testing and simulation of a large-scale Sandwich shaft sealing system Open
Shaft seals are part of the multi-barrier system of a deep geological repository for high-level radioactive waste. They are designed to limit the fluid exchange between the repository and the overlying rock mass and biosphere. A particular…
View article: An approach to improve the numerical simulation of crushed salt compaction behavior
An approach to improve the numerical simulation of crushed salt compaction behavior Open
Crushed salt as backfill material in a repository for high-level nuclear waste is aimed to act as a long-term barrier. The sealing effect of crushed salt evolves with ongoing compaction and therefore reduction in porosity and permeability.…
View article: Proceedings of the 13<sup>th</sup> US/German Workshop on Salt Repository Research, Design, and Operation
Proceedings of the 13<sup>th</sup> US/German Workshop on Salt Repository Research, Design, and Operation Open
This report summarizes the proceedings of the 13th US/German Workshop on Salt Repository Research, Design, and Operation hosted by Sandia National Laboratories on June 20-23, 2023, in Santa Fe, New Mexico, USA. Over 60 participants attende…
View article: Compaction of crushed salt for safe containment – a summary of the KOMPASS projects
Compaction of crushed salt for safe containment – a summary of the KOMPASS projects Open
For the underground disposal of high-level nuclear waste in rock salt formations, the safety concept includes the backfilling of open cavities with crushed salt. For the prognosis of the sealing function of the backfill for the safe contai…
View article: Compaction of crushed salt for safe containment – Overview of phase 2 of the KOMPASS project
Compaction of crushed salt for safe containment – Overview of phase 2 of the KOMPASS project Open
The KOMPASS project strives to improve the scientific basis behind using crushed salt for long-term isolation of high-level nuclear waste within rock salt repositories. Efforts to improve the prediction of crushed salt compaction began dur…
View article: Compaction of crushed salt for safe containment – overview of the KOMPASS project
Compaction of crushed salt for safe containment – overview of the KOMPASS project Open
In Germany, rock salt formations are possible host rock candidates for a repository for heat-emitting radioactive waste. The safety concept of a repository in salt bases on a multibarrier system consisting mainly of the geological barrier …
View article: From process to system understanding with multi-disciplinary investigation methods: set-up and first results of the CD-A experiment (Mont Terri rock laboratory)
From process to system understanding with multi-disciplinary investigation methods: set-up and first results of the CD-A experiment (Mont Terri rock laboratory) Open
A potential repository site for high-level radioactive waste should ensure the highest possible safety level over a period of one million years. In addition to design issues, demonstrating the integrity of the barrier is essential as it en…
View article: KOMPASS: Compaction of crushed salt for the safe containment
KOMPASS: Compaction of crushed salt for the safe containment Open
In Germany, rock salt formations are a possible host rock taken into account for the safe disposal of heat-emitting radioactive waste. With respect to crushed salt will be used in the repository for backfilling of open cavitied (using dry …