How a Swiss Factory Makes Cement That Absorbs Carbon

The Manufacturing Podcast with Fexingo: Factories, Supply Chains, and Industrial Business · Jul 12, 2026 · 10m · transcript

Cement production accounts for about 8 percent of global CO2 emissions. But a startup near Zurich called Neustark has found a way to turn demolished concrete into a carbon sink. In this episode, Lucas and Luna visit a plant that grinds old building rubble into a fine powder, then injects it with captured CO2. The result: recycled aggregate that stores carbon permanently. The factory processes 25,000 tons of demolition waste per year, locking away 1,000 tons of CO2 annually. We walk through the chemistry, the economics, and the scale-up challenge. If this tech works at scale, it could…