ABSTRACT
In the execution of the lot E52 of the Brenner Base Tunnel, environmental challenges were mastered for reduceing the environmental impact and sparing resources. According to the geological preliminary investigations, the Bündner Schist which formerly should be deposited was released for recycling on the basis of intensive geological and engineering investigations. After beginning the construction phase, the project partners planned cooperatively to implement the recycling of tunnel spoil not previously used in Austria. Within a few months, the necessary steps of sampling, trial production, laboratory tests for decisions and technical development were carried out. The complexity of this topic is presented and the measures for quality control and adaption of process cycles are displayed. With the implementation of tunnel spoil recycling at “Erkundungslos Padastertal + Wolf II”, BBT-SE mastered important steps for planning and concrete execution of further construction lots as well as an innovative path for the construction industry.
