The recycling rate of AAC is to increase to 20 percent by 2030. Why is that so significant?
Sustainability is one of the central future issues in our industry. Above all, the issue of CO₂ emissions represents a major challenge. At the same time, the construction industry is responsible for around 50 percent of all raw material extraction and over 35 percent of all waste generated in the EU. An ecologically sustainable built environment requires that - in addition to considering CO₂ balances – the principles of the circular economy must apply throughout the entire life cycle of buildings. This can be done, for example, by ensuring that building components are fully recycled and reused to produce new building materials.
What does circular economy mean in relation to autoclaved aerated concrete?
We are working on establishing circular economy for autoclaved aerated concrete. This means that we want every building to serve as a raw material store for the buildings of tomorrow. We want to ensure its high-quality continued use after demolition or dismantling.
What is already possible today?
Already today, 80 percent of the mineral building demolition material produced each year is reused in Germany. That’s a good figure, but much of it goes into road construction and is taken out of the cycle. In the future, autoclaved aerated concrete should be reused as indefinitely as possible in its original or at least equivalent function. To achieve this, it is necessary to create customized technologies and structures.