Material Flows In Buildings Life Cycle And Regions
Material Flows In Buildings’ Life Cycle And Regions - Material Inventories To Support Planning Towards Circular Economy Georg SCHILLER, Thomas LÜTZKENDORF, Karin GRUHLER, Ines LEHMANN, Kai MÖRMANN, Florian KNAPPE, Nadine MUCHOW and Jörg HENNERSDORF Leibniz Institute of Ecological Urban and Regional Development, g. schiller@ioer. de
Built environment dominates the anthropogenic material stock § More than 90 % of all materials used in durable goods are induced by buildings § 94% of building materials are bulk non metallic mineral materials (Sand, Stone, Clay) (Urban) Material Consumption 1309 Download full paper at www. cesb. cz/19/8888
Less than 40% of construction and demolition waste is recycled disposal recovery 1000 t backfilling recycling landfill construction landfill soil material 4. 185 83 % 10 % 4% 3% construction waste 4. 350 32 % 64 % 2% 2% total 8. 535 57 % 38 % 3% 2% Sachsen 2012, Daten: Sta. La SN Download full paper at www. cesb. cz/19/8888 1309
Changing Input / Output Ratio -150 2010 2050 -100 Inflow [mt] -50 0 50 100 150 based on Gruhler and Deilmann 2016 Outflow [mt] Download full paper at www. cesb. cz/19/8888 1309
Concepts to provide information on the building level and regional level source: https: //www. dreso. com/de/presseinformationen /2015/eu-forschungsprojekt-buildings-as-material-banks-startet/ (source: van der Voet et al. „Prospecting the urban mine of Amsterdam“) (source: Munaro et al. „Proposal of a building material passport and its application feasibility to the wood frame constructive system in Brazil “) Download full paper at www. cesb. cz/19/8888 1309
Information for stakeholders § Who are the addressees? Which planning tasks are directly related to questions of resource management of building materials? § What information do they need? What information with regard to content and spatial resolution? § How can information be provided? Which existing information bases can be integrated and merged into a material cadastre? Download full paper at www. cesb. cz/19/8888 1309
Structure § (Background) § Conceptual approach § Needs for Information § Conclusions and outlook Download full paper at www. cesb. cz/19/8888 1309
Dualistic Approach: Buildings and Regions material inventory for buildings § Conceptual design of material inventories and material cadastres to strengthen planning towards circular economy § Aligned with practical needs material cadastre for building stocks data sources for materials building typological building characteristics data sources for materials settlement/region documentation requirements building guideline actors survey documentation requirements settlement/region potential solutions building degree of differentiation potential solutions settlement/region validation practice partners case study validation model region evaluation considering relevant actors comprehensive evaluation considering relevant actors Download full paper at www. cesb. cz/19/8888 1309
Buildings and regions: different perspectives Single buildings are being examined along their life cycle Lützkendorf (KIT) 2019 Download full paper at www. cesb. cz/19/8888 1309
Buildings and regions: different perspectives year t = x Single buildings are being examined along their life cycle The material stock on the cadastral level in a specific year or period Lützkendorf (KIT) 2019 Download full paper at www. cesb. cz/19/8888 1309
Occasion-actor-instrument constellation Download full paper at www. cesb. cz/19/8888 1309
Material Categories Download full paper at www. cesb. cz/19/8888 1309
Structure § Background § Conceptual approach § Needs for Information § Conclusions and outlook Download full paper at www. cesb. cz/19/8888 1309
Information demand related to single buildings Download full paper at www. cesb. cz/19/8888 1309
Information demand related to material stocks in regions Download full paper at www. cesb. cz/19/8888 1309
Case studies (cadastre) Discussions and workshops to specify information needs and link them to planning tasks In order to § Give an idea what kind of information could be provided in principle (free available data – statistics /Geodata on building stocks and flows; material composition indicators (MCI) (http: //ioerbdat. de/en/) § specify the needs of the actors Download full paper at www. cesb. cz/19/8888 1309
Material stock by building types MFH SFH Download full paper at www. cesb. cz/19/8888 1309
Material stock – focus on specific materials Download full paper at www. cesb. cz/19/8888 1309
Material stock – focus on specific materials Download full paper at www. cesb. cz/19/8888 1309
Mapping material flows – new construction of residential buildings Download full paper at www. cesb. cz/19/8888 1309
Using 3 D Data (LOD 1) to estimate the material stock GIS-Polygons MCI of Building Types § Clarification of strengths and weaknesses of different approaches § Options and needs to improve the approaches Material Stock Download full paper at www. cesb. cz/19/8888 1309
Small scale material stock § Increasing spatial resolution goes along with increasing uncertainty and reliability Download full paper at www. cesb. cz/19/8888 1309
Specifications of information needs categories of actors Areas of interest Spatial scale Characteristics Planning tasks urban planning quarter and single building - availability of resources - urban land use planning environmental impact assessment waste management whole area of responsibility (e. g. district) - outflows (European Waste Catalogue, hazardous substances) - potentials for recycling landfill planning cultural heritage preservation single building - grey energy hazardous substances composites - arguments for preservation prolongation of building‘s lifetime sustainable city - grey energy - sustainable city climate whole area of interest (e. g. federal state) - CO 2 emissions Recycled materials - climate policies cross-sectional tasks (regional planning, waste m. , etc) whole area of responsibility (e. g. district) - raw materials building materials - municipal resource management circular economy - Download full paper at www. cesb. cz/19/8888 1309
Conclusions § Concepts for material inventories and cadastres that are not aligned with the practical needs of the addressees are not contributing to a more circular economy in the construction sector -> I we want stakeholders make use of the information, we need to meet their requirements (or help them to recognize the requirements) § The presented case study approach helps to identify and specify actual information needs of different actor groups and links to their respective planning tasks. Download full paper at www. cesb. cz/19/8888 1309
Outlook Next steps: § Describing and testing of „best needed“ approaches considering overlappings between cadastre (region) and inventories (buildings) § Determination of a scalable material typologies (The information needs of actors operating on the building level are more differentiated than of those on the regional level) § Exploration of the inclusion of energy-related parameters such as grey energy and emissions Download full paper at www. cesb. cz/19/8888 1309
Thank you for your attention! Georg SCHILLER g. schiller@ioer. de Scan QR or download full paper at www. cesb. cz/19/ 1309
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