Overview

Hall 11 is a secondary building situated in the demonstration area. It was demolished and materials from the demolition were incorporated into other construction projects. The function of hall 12 was and will remain a skate hall. Beams and pillars and the main steel structure of hall 12 were preserved, with a new roof, façade and interior. 

Implementation

• Following a pre-demolition screening a selective demolition took place using the CityLoops pre-demolition guidelines.  
• A virtual material bank was created through design for disassembly using Building Information Modelling (BIM)   
• Circular soil strategies were implemented by minimising soil movement and facilitating reuse on site.
• Concrete recovered from the demolition was crushed for recycling into new concrete in the construction of a parking house (demonstration action 2).

Relevant instruments

• Pre-demolition screening & selective demolition procedure
• Lifecycle CO2 calculator

Overview

Roksilde will construct two parking garages: Indfaldet and Pulsen. The Indfaldet project began in 2019 and finalised in 2021. Large concrete obstacles that were discovered during preparation work have been crushed and reused for material layers below the concrete, replacing virgin gravel. Pulsen will be built as a steel structure, and Roskilde is involving the market in risk model analysis and testing. 100% recycled coarse fraction and 50% recycled fine fraction of recycled concrete will go into the foundation for parking garage 2 

Implementation

• In the Intfalden project, Concrete recovered from the digging was mixed and used in new concrete
• Circular strategies such as design for disassembly have a role in both projects
• A physical construction material bank in the ground floor of parking garage 2 will be created
• A third parking garages park will be built in the Musicon area, based on the learnings from the circular considerations of parking garages 1 and 2. 

Relevant instruments

• Guide for recycling of concrete

Overview

This demonstration action focused on creating circular soil management at city level in order to keep excavation of soil to a minimum and use excess soil locally, instead of driving it further away.

Implementation

• A number of CityLoops tools and methodologies were tested, including the circular soil framework
• Results fed into a template for municipal soil strategy  
• Soil was treated like any other waste stream; it was kept separate and tracked.
• LCA calculations proving the environmental impact of excavation and moving of masses have been used as arguments for planning and decision making

Relevant instruments

• Instrument for predicting soil production

• Roadmap for soil management

• Guidelines for sustainable soil management and assessment of reuse potential of excavated soils