Projektnummer

0071209

Zusammenfassung

Despite a high nominal recycling rate of around 78% there is still a huge amount of mineral waste (around 13 million tons yearly in Germany) coming from demolition of buildings. Especially low-quality mineral waste of demolition rubble is still landfilled, i.e. demolished plaster, mortar and masonry. The main goal of this project is a circular approach for low-quality mineral waste with the help of microbially induced calcite precipitation (MICP). The MICP method produces limestone and closes porous surfaces what makes these aggregates usable for the production of structural concrete. The cult...