This project aims at increasing our understanding of the in situ wetting of engineered barrier systems using bentonite clay when put in place in natural fractured bedrock. It is tightly linked to the Bentonite Rock Interaction Experiment (BRIE) carried out at the Äspö Hard Rock laboratory (southeastern Sweden) and is a collaboration to the Äspö Task Force on Modelling of Groundwater Flow and Transport of Solutes. One question is to assess the accuracy of predicted wetting patterns and times with access to different levels of site characterization data. Numerical modelling is used to perform sensitivity analysis and identify the parameters to measure in order to constrain the buffer wetting predictions.

Other participating researchers of the unit: Andrew Frampton and Jerker Jarsjö

Modelling the in situ wetting of columns of compacted bentonite blocks in sparsely fractured rock
Modelling the in situ wetting of columns of compacted bentonite blocks in sparsely fractured rock