89. Proof of Concept for a BIM-Based Material Passport

Building stocks and infrastructures are representing the largest material stock of industrial economies. In order to minimize the use of primary resources and the dependency on imports, “Urban Mining” strategy aims to recycle these urban stocks. For enabling of higher recycling rates detailed knowledge about the composition of building stocks in needed. Recyclability is also determined through design and is depending on constructive criteria defining accessibility and separability of building components, whereby the early design-stage plays an important role. In order to optimize the recycling potential and material composition of buildings, new design-centric tools and methods are required. The so called Material Passports represent such tools, which next to the design optimization would enable circular economy in the building industry. In this paper we will present the results of funded research project BIMaterial: Process design for BIM-based, Material passport. The main aim of this research is to create a BIM-based Material Passport for the optimization of the building design regarding resources use and documentation of materials, thereby using Building Information Modelling as knowledge base for geometry and material properties and coupling to further databases for assessment of ecologic footprint and recycling potentials. Thereby a framework for modelling and methodology for semi-automated Material Passport assessment will be proposed. As the methods and structured data that would allow an automated creation of a Material Passport are still lacking, therefore the current research has an innovative character and closes a research gap in this field.