Secondary aggregate resources for sustainable civil engineering

Important results from the project

The goal is to use a systemic perspective to create the conditions for secondary aggregate raw materials to become a natural and routine part of the procurement of urban construction infrastructure and thereby promote sustainable construction. The current project has laid the foundation for the development of, among other things, new dimensioning tools, business models, climate impact tools, technical regulations and environmental assessment.

Expected long term effects

The collaboration between stake holders, industry and academia has led to increased communication between the actors and thus an increased consensus. Full-scale trials combined with laboratory tests have created the basis for dimensioning tools for trafficked, urban surfaces with secondary aggregate materials. Function-related tests have been shown to be superior to standardized ballast methods and point to the need for change in regulations. New business models and life cycle analyzes of materials and constructions result in the possibility of more sustainable construction.

Approach and implementation

The initial TIS-analysis pointed out the need for enhanced activities in certain work areas and led to more efficient work. Planning of full-scale trials, lab tests and field test areas was done in parallel. The short project time did not allow conclusions to be drawn from lab tests and then implemented in field sites. However, data and experience within the consortium still made it possible. Difficulties in synchronizing the construction of urban test areas with a short project time. Unreasonably long processing times by environmental officers delayed the construction of test areas.