Trade Journals for the Concrete Industry

Climate protection is one of the most pressing global issues and requires a rethink at many levels. In this context, the construction and building sector also plays a central role, as it is associated with 38% of global CO2 emissions. One of the solutions to avoid grey energy and CO2 emissions and to increase material efficiency is the application of void formers in biaxial concrete slabs. The application of this sustainable technology has so far been mainly present in the in-situ concrete variant, but recently it has been increasingly used in combination with precast or semi-precast solutions. The following article summarizes the current state of the art and, in addition to a brief insight into the research carried out, provides an overview of practical applications in compliance with design codes and homologations.