For this project, 3,000 m3 of ECOPact+ were used. This way, natural materials were replaced with recycled aggregates and conventional cement with ECOPlanet Susteno cement containing up to 20% of construction and demolition waste inside, putting the principles of the circular economy at the heart of the project. ECOPlanet Susteno cement contains 10% less CO2 compared to an already optimized Swiss mass cement.
For 1,000 m3 of concrete the remaining CO2 was offset with certified climate projects.
Sustainable construction played a crucial role across the entire project: the building materials were supplied from the Holcim concrete plant in St. Gallen, which is only 3 kilometers away from the project site.
Marcel Kunz, foreman from Feldmann Bau, was impressed by ECOPact’s performance: “It was an experiment for us as it was the first time we worked with it. However, after gaining some experience with the behavior of ECOPact+, I am very satisfied. It's a wonderful concrete."