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Recycled concrete aggregates in climate-neutral structural applications in transport infrastructure

Reference number
Coordinator RISE Research Institutes of Sweden AB - RISE RESEARCH INSTITUTES OF SWEDEN AB,Borås
Funding from Vinnova SEK 1 621 500
Project duration June 2017 - November 2019
Status Completed
Venture The strategic innovation program InfraSweden

Purpose and goal

The purpose was to investigate the impact of fractions of recycled concrete aggregate (RCA) on the global structural behavior of reinforced concrete components in transport infrastructure. The project has demonstrated through experiments that, despite the coarse aggregate replacement fraction, that comparable mechanical properties of concrete with minimal deviation could be achieved. Reusing concrete from one source helps minimize uncertainty and enhance the quality of the concrete.

Expected results and effects

The project has contributed to demonstrating the potential for circular economy in construction as well as to the innovative development of transportation infrastructure and potential future business opportunities. Making use of RCA is a relevant trend that should be considered to achieve higher sustainability and material circularity in the construction industry. Recycling concrete from a single source can enhance the quality of RAC and minimize uncertainty. Moreover, reusing concrete from local aging infrastructures minimizes the environmental impact of transportation.

Planned approach and implementation

The project’s formulation followed the plan presented in the proposal, namely 1. Acquire and process concrete from a demolished structure into RCA, 2. Develop concrete mixtures with various fractions of RCA, 3. Characterize the mechanical behaviour of concrete with various fractions of RCA on the material level, 4. Characterize the global structural behaviour of concrete with various fractions of RCA on the structural level, and 5.Evaluate the environmental impact of using RCA in an edge beam.

External links

The project description has been provided by the project members themselves and the text has not been looked at by our editors.

Last updated 10 January 2020

Reference number 2017-02687

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