Pore-scale and REV-scale approaches to biological and chemical pore-space alteration in porous media (C04)

• Subject Area: Hydrogeology, Hydrology, Limnology, Urban Water Management, Water Chemistry, Integrated Water Resources Management ; Structural Engineering, Building Informatics and Construction Operation
• Term: since 2018
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 327154368

The work plan places increased emphasis on numerical modelling of biomineralization at the REV scale. The model captures flow and transport of reactive solutions, pH-driven calcium carbonate precipitation, and resulting pore-space alterations. These affect hydraulic properties like porosity and permeability, as well as mechanical behaviour. Modelling is closely linked to bio-concrete experiments, with both together aiming to identify conditions for optimized and reproducible mechanical properties of the product.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 1313: Interface-Driven Multi-Field Processes in Porous Media - Flow, Transport and Deformation -
• Applicant Institution: Universität Stuttgart
• Project Heads: Professor Dr.-Ing. Lucio Blandini, since 1/2026; Professor Dr.-Ing. Holger Class