Sample preparation
The basic precondition for a standards-compliant strength examination is exact manufacturing of the specimen body. What is important above all is the right-angularity of the end surfaces of the specimen to the specimen axis (i.e. their perfect parallelism).
At Gesteinslabor Dr. Eberhard Jahns, this task is taken care of by a customised abrasive cutting-off machine with frequency-controlled automatic feeding. Specially developed clamping devices facilitate exactly plane-parallel cutting steps without the specimen having to be released from the clamps. The closed system allows, if required, the execution of dry cuts without any problems, to avoid interaction between the rock material and the cooling fluid.
News
We are exhibiting at the world's leading trade fair for geothermal energy in Offenburg:
On 26 and 27 February 2026, you can meet us at booth 124 in the Edeka Hall.
We look forward to seeing you there.
We are pleased to be part of the Dutch subsurface research for geothermal heat SCAN.
Further information can be found on the official homepage:
https://scanaardwarmte.nl/english/

Gesteinslabor Dr. Eberhard Jahns is project and research partner within the HENRI (Hydrogen Energy Reservoir) project.
Main focus of us is the impact of H2 on the cap rock. Besides other parameters, we determine the capillary threshold pressure with different gases and gas mixtures.
First preliminary results could be presented at the 2nd HENRI conference.



