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.
In September 2019 the Swiss National Cooperative for the Disposal of Radioactive Waste (NAGRA) commisioned Gesteinslabor with UCS, Brazilian and triaxial tests on neighbouring rocks of the Opalinus Clay - the rock which will host Switzerland's future facilities for nuclear waste disposal.
Gesteinslabor receives funding grant for the development of a novel test rig to determine capillary threshold pressure with hydrogen
Gesteinslabor receives funding from BMWi for the development of a new test rig. With this funding, our company will open up a new business field in renewable energies by implementing an innovative technology to determine the capillary threshold pressure with hydrogen on cap rock of underground gas storage facilities.