Concrete with recycled materials
Together with partners at BIOFOS, the Technical University of Denmark and Ramboll, EasyMining has conducted a project exploring how sewage sludge ash can be recycled and used in construction materials.
The project involves the Ash2Phos process, which recovers phosphorus from sewage sludge ash, separates hazardous substances, and produces a silica-rich material that can be used in concrete applications.
The project evaluated whether this material could replace sand and/or cement in concrete. The results show that the greatest potential for reducing the concrete's carbon footprint lies in replacing a portion of the cement. When milled, the material can replace up to 20% of the cement while maintaining the concrete’s mechanical properties.