Improving quality of construction & demolition waste

Requirements for pre-demolition audit

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A pre-demolition audit is a tool that can be used to both identify hazardous substances and assess the materials to be removed from the building or infrastructure, and consequently their potential value, prior to the demolition or renovation activity can be established. Audits are essential since they enable all stakeholders involved to get information on the composition of waste and make it easier to find markets for different waste types. It is likely that the European Commission will recommend all Member States to make this pre-demolition audit mandatory to increase high quality recycling of construction and demolition waste. The report presents the current pre-demolition audit systems and existing guidelines in Denmark, Finland and Sweden. The report gives recommendations on key elements to be included in audits for improving the quality of the construction and demolition waste.




Construction and demolition (C&D) waste arises from the construction, renovation and demolition of buildings and infrastructure, which accounts for around a third of the waste streams generated in the Nordic countries. C&D waste consists of various materials, including concrete, bricks, gypsum, wood, glass, metals, plastic, solvents, hazardous substances (asbestos, PCBs, etc.) and excavated soils. The waste is typically used as unbound materials in road construction, for backfilling or landscaping, or is disposed of in landfills or incinerated. The recycling and reuse potential of C&D waste is still underexploited. The major challenge is the poor quality of the waste, typically due to the low degree of identification and removal of hazardous substances or undesirable fractions at source and poor sorting of waste fractions, which results in heterogeneity and potential content of hazardous substances.

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