Climate-friendly concrete
The new "Zephyr Ost" building will serve as a new production and assembly building for V-ZUG from 2023 - built with CO2-enriched concrete.
The construction project in the Tech Cluster Zug is the largest construction project to date in which CO2-enriched concrete is used. For this purpose, CO2 from Switzerland is used for the first time, which the ETH spin-off neustark obtains from the wastewater treatment plant of ara region bern AG. In addition to binding CO2, the client also required the use of high-quality recycled concrete. In this way, V-Zug relies on the efficient use of concrete. "For example, the ceiling systems were optimized in terms of material consumption, and hollow core ceilings are planned in places with low static stress," says Christoph Graf, "Zephyr Ost" project manager at Tech Cluster Zug AG.
The recycled concrete EvopactRecarb is manufactured and supplied by Holcim. Using state-of-the-art technologies, the company processes regional mineral demolition material into high-quality secondary raw materials, which flow back into the building material cycle in cement and concrete production. "We are delighted to be taking a step closer to our vision of climate-neutral and circular concrete production with the help of the innovative neustark process," adds Giovanni Barbarani, Head of Concrete Performance at Holcim Switzerland. "This project is a milestone on the way to sustainable construction in Switzerland, also thanks to its regionality and short transport routes."