Holcim supplies sustainable concrete for HSG Learning Center
Holcim has provided an innovative concrete product for the HSG Learning Center under construction at the University of St.Gallen. EvopactPLUS closes the building material cycle, is supposed to conserve natural resources and save CO2, according to Holcim.
The HSG Foundation is currently building the new HSG Learning Center on the premises of the University of St.Gallen ( HSG ). The general contractor HRS Real Estate AG has commissioned the Swiss Holcim AG with the delivery of the concretes. A new, more sustainable Holcim product, EvopactPLUS, is used in around half of the total of 6,000 cubic meters of concrete used.
"With EvopactPLUS we close the building material cycle, conserve natural resources and save CO2," said Roger Dällenbach, Regional Manager for German-speaking Switzerland and Ticino, in a press release from Holcim. The new type of concrete replaces natural gravel with a reclaimed aggregate from the region. It also includes Susteno, which, according to the company, is the "first and only resource-saving cement in Europe that uses mixed granulate from demolitions as an additive". This fine material is not used in conventional concrete production and must therefore be dumped.
"Compared to an already optimized mass cement, the use of Susteno saves 10 percent CO2," the press release said. Regionality also plays a role: the building material is delivered from the Holcim concrete plant in St.Gallen, just three kilometers from the construction site. "It was an experiment for us because we were working with the product for the first time," Holcim foreman Marcel Kunz is quoted as saying. He is very satisfied with it, "it's a wonderful concrete."
In the future, the modern building should focus less on technical learning than on learning the necessary skills such as critical thinking and self-reflection, according to the client, the HSG Foundation . It finances this project largely from donations from HSG alumni .