Processing of materials to achieve the original high-quality or reduce to low-quality.



🏢 Recycle

Currently, the best practice worldwide for dealing with concrete and brick debris is to recycle it. The debris is collected, transported, manually or mechanically sorted, washed, crushed, and recycled into new building materials and products.

Incineration of materials, recovering their energy.

🏢 Recover

Currently, the best practice worldwide for dealing with concrete and brick debris is to recycle it. The debris is collected, transported, manually or mechanically sorted, washed, crushed, and recycled into new building materials and products.


The strategies usually require technical equipment and energy inputs to create a new value.

This framework surpasses the famous 3R (Reduce, Reuse, Recycle). The nine strategies Refuse, Rethink, Reduce, Reuse, Repair, Refurbish, Remanufacture, Repurpose, and Recycle and Recover provide a clear and actionable roadmap for a circular transition. 

Strategies at the top of the hierarchy, such as Refuse, Rethink, and Reduce, are the most effective at increasing a construction project's circularity level. These strategies focus on avoiding or minimising resource use and waste from the project's conception.

That is why a clear hierarchy exists where higher-level R strategies are preferred, and lower-level strategies are deemed more linear. 

In the original 9R framework, the last strategy, Recover, is often considered non-circular since it consists of energy recovery from material waste incineration, which is why it was left out of the scope of this case study collection.

They are applied to the built environment sector here as part of the [Realdania ](https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://www.realdania.org/&ved=2ahUKEwiF74KezMyJAxUpUaQEHURhOOEQFnoECBYQAQ&usg=AOvVaw0o-XWvSka80KCHtCG6XDS3) project.

🏢 9R Framework

🏢 Useful application of materials

The strategies are applied to building products labeled ‘waste’ by the industry.

Consists of: