Cost curves for concrete for RWS

The Ministry of Infrastructure and Water Management, together with the Directorate-General for Public Works and Water Management (Rijkswaterstaat, RWS) and ProRail, drafted the strategy ‘Towards climate-neutral and circular national infrastructure projects’ (Naar klimaatneutrale en circulaire rijksinfrastructuurprojecten, KCI). This is based on the ambition, as a major contracting authority for infrastructure projects, to be fully climate-neutral and circular by 2030, with high-quality reuse of all materials and halving the use of primary raw materials. To support RWS, CE Delft conducted several studies in 2019, 2020 and 2021 that provided insight into opportunities to reduce environmental impacts over the next 10 years.

In 2020, we established cost curves for the application of concrete innovations by RWS and mapped the circularity of these concrete innovations. The cost curves and circularity indicators show how concrete innovations can be deployed over the next 10 years, in order to reduce the climate impact (CO2-eq. emissions) and Environmental Cost Indicator value (€ ECI) of the concrete that RWS applies as cost-effectively as possible and increase the circularity of this concrete.

We also conducted analyses of the climate impact of concrete in the Netherlands, carried out a null measurement and centre of gravity analysis of the Artworks Transition Path (Transitiepad Kunstwerken), and established cost curves for the environmental impact of the asphalt that RWS applies.