Sensor-based sorting

Recycled concrete production

Problem

The Act on Recycling and Waste Management (Kreislauf-wirtschaftsgesetz) intends for secondary raw materials, such as recycled aggregates produced from mineral construction and demolition waste, to be recycled into higher-quality products. This applies to various material fractions resulting from building deconstruction which require the development of closed-loop material cycles. The focus lies on using sensor-based sorting processes to produce high-quality recycled mineral aggregates intended for the production of reinforced concretes.

According to DIN EN 12620 and the DAfStb guideline...

Related articles:

Issue 2016-02 Recycling of lightweight concrete

Sustainability benefits of lightweight concrete

The ongoing discussion on closed-loop recycling is increasingly focusing on the construction industry which uses significant amounts of mineral resources and counts among the large waste producers. In...

more
Issue 2015-04 Cemex

Pilot project with recycled aggregates

Cemex Deutschland AG is supplying approximately 3,800 m² of ready-mixed concrete to Campus Nord of the Humboldt University in Berlin. The awarding authority, the Senate Department for Urban...

more
Issue 2016-09 Ytong

Recycling of autoclaved aerated ­concrete residues

In mid-May 2015, Xella Deutschland and Interseroh together have implemented a big bag concept for the disposal of Ytong autoclaved aerated concrete and Multipor mineral insulation boards. Since then,...

more
Issue 2019-02 Recycling of lightweight concrete

Pilot plant paves the way to the future

Implementation of a zero-waste economy requires feeding back of secondary raw materials into subsequent production runs, which is one of the major challenges all raw material processing industries are...

more
Issue 2019-02 Innovative precast elements made from secondary raw materials

Report on the SeRaMCo EU research project

The Interreg NWE SeRaMCo (Secondary Raw Materials for Concrete Precast Products) EU research project aims to increase practical use of recycled constituents in precast construction, in keeping with...

more