In order to achieve the objectives, various complementary test setups are used by the project partners. In the planned experiments, four magnetically doped grouting materials with different rheological properties, that are newly developed by the project partner MPA Karlsruhe (KIT), will be used to investigate the relationship between the rheological properties and the grouting quality.
One of Solites’ key work packages is the visualization of the grouting and hardening process of six meter high geothermal borehole heat exchangers in the presence of different groundwater flows. A transparent borehole is used for these experiments. In addition, real-scale experiments are performed to proof the validity of the six meter tests for real-scale conditions.
The experimental procedures also include the use of automatic grouting control based on magnetic susceptibility measurements.