All other procedures were kept the same. The outdoor weathered glulam elements were acclimatised at standard atmosphere before sample preparation.
2.2. Test setup and data evaluation
A Zwick/Roell Z010 universal testing machine with a 10 kN load cell was used for all experiments. The load was applied perpendicular to the glue joint, i.e. in pure opening mode. Ammann and Niemz  found an influence of the testing speed on the measured results.