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Re-use, recyling and future of demolished buildings

Re-use, recyling and future of demolished buildings. construction and demolition waste (C&D). 2009 : 6,9 million t of C&D accrued in Austria  12% of the total amount of waste generated in Austria Law since 2011: *) implentation of waste prevention programmes

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Re-use, recyling and future of demolished buildings

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  1. Re-use, recyling and future of demolished buildings

  2. construction and demolition waste (C&D) • 2009 : 6,9 million t of C&D accrued in Austria •  12% of the total amount of waste generated in Austria • Law since 2011: *) implentation of waste prevention programmes *) support of the life cycle thinking of products to reduce negative environmental impacts *)Strengthening of responsibility of producer • Until 2020: Austria commits itself to achieve a recycling rate of 70%  EU-Waste Framework Directive

  3. Buildings in the course of times • The increasing number of used building materials inhibits recycling

  4. C&D waste in Austria in 2009 • increasing of: C&D and Landfilled masses, decreasing of: free landfill capacity

  5. Act on the Remediation of Contaminated Sites The ALSAG fee has to be payed for the insertion of residues above and below ground level; Exemption from ALSAG-fee, if • Quality assurance • Permissible at technical necessary extent • Approved building activity

  6. Contaminants in buildings • Sanitary and electricity installation (e.g. PVC, heavy metals) • Tiles (e.g. heavy metals) • Gypsum plaster boards and planks (e.g. sulphate) • Window & doors (PVC) • Sealants and sealing sheets • Floor coverings • Wall & roof cladding  In further times these materials used to be appreciated but now they are contaminants

  7. Recycling orientated dismantling The prospecting of contaminants avoids bad surprises • Consider historic usages • Site inspection • Develop sampling plan • Implement analytics • Develop concepts for dismantling • Develop wast management concept • Implement dismantling

  8. Preparation of C&D waste / assessment of demolition work • Facturing – sieving – magnetic iron separator in mobile and stationary facilities  to produce pure and high – qualitative secondary resources • The recycling orientated dismantling and the separation of light weight fraction ensure a high qualitiy of the RC material

  9. Product life cycles of Fate of contaminants in C&D waste • Point sources • Manual separation • Planar sources • Separation machines • For a high quality recyling ensures secondary resources for next generations • Merging energy & resource efficiency

  10. Strategy for the sustainable use

  11. Support market • Precise legal framework • Prohibition of landfilling recycable materials • Additional taxes on primary resources • Obligatory utilization rate for recycled materials in pubic construction ventures • Promotion of innovation for architects and planners • Promotion of innovation for companies regarding the development and production of recycled building materials

  12. Support acceptance • Raise awareness for the conservation of resources in the construction industry • A precise legal framework supports the transition of C&D was from waste to product • Promotion of best-practice examples • Production of quality-controlled secondary raw materials • Promotion of the acceptance for secondary raw materials on the part of architects and planners

  13. Support quality • Promotion of recyclable and dismantable building material • Implementation of building passport system for better documentation of materials in the building • Conduction of obligatory prospecting of contaminants before demolition • Promotion of the recycling orientated dismantling procedure • Promotion of preparation technologies • Strengthening of standardized quality assurance for RC material – quality protection for RC building materials

  14. Measures along life cycle stages • Plan • Design for recycling concepts • Buildings pass • Subventions „buildings and sanify“ • Ecologication of the Federal construction contacts Act • Building • Obligatory prospection of contaminants and valuables • Collaboration of building and waste management administration • Promotion of ecological housing advancement

  15. Measures along life cycle stages • Dismantle • Determination für end of waste • Adaption of ALSAG-fee • Strengthening of demolition notification • Obligatory waste management concept for building sites • Recylce • Prohibition for landfillable material • Strenghtening of Quality assurance for RC material • RC quota for new buildings • Ecologication of building material industry

  16. Thank you for your attention!

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