Development of a Model to Assess the Environmental Properties of Common Outdoor Plasters and Mortars

In the course of the site clearance at the former Bayern barracks the city of Munich plans to recycle approx. 200,000 tons of excavated soil and processed demolition waste as plant substrates in landscaping. To minimize disposal and transport costs, as well as disposal related externalized costs such as urban traffic load and CO₂ emissions, the city of Munich plans to utilize these materials on the spot.

The aim of the pilot project is to assess the non-hazardous re-use of these secondary substrates within the newly arising city quarter ‘Neufreimann’ on the area of the former Bayern barracks. Also, potential benefits concerning water holding capacities will be investigated.

For this purpose, a field trial was established where different substrate mixtures will be investigated with regard to plant compatibility, soil water contents, emission of pollutants and retention of pollutants. Depending on the outcome, the recycling concept could be adopted for comparable building projects in Munich.