Concrete recycling startup R2Crete is moving from laboratory success to real-world commercial deployment with funding for a pilot plant.
In Australia each year, an estimated seven million tonnes of waste concrete is generated. The global figure could be as high as two billion tonnes annually.
R2Crete’s patented process transforms waste concrete into high‑value clean aggregates and a cement replacement that can be reused in new concrete production. The process significantly reduces carbon emissions, landfill waste, and the demand for raw materials such as sand, gravel and limestone.
The technology can recover up to 75% of the cement in waste concrete while retaining the performance characteristics of traditional concrete. This delivers a 50% reduction in CO₂ emissions, according to R2Crete. It was developed based on research by Dr Tuan Nguyen, Senior Lecturer in the Faculty of Engineering and Information Technology at the University of Melbourne (UoM).
R2Crete, a UoM spinout, has pioneered the breakthrough concrete recycling technology and secured $750,000 in pre-seed funding from the university’s Genesis Pre-Seed Fund, and Uniseed after early support through the university’s Proof-of-Concept Fund and Australia’s Economic Accelerator Ignite program.
R2Crete is currently in discussions with a range of industry partners to undertake field trials in early 2027 using material produced from the pilot plant which is expected to be completed later this year.
Warren Overton, Managing Director of R2Crete believes the pilot plant will “demonstrate that high‑value recycled aggregates and cement replacement products can be produced reliably, cost effectively and at scale – helping the construction industry transition to a more circular and lower carbon future”.
Image: UoM Genesis Pre-Seed Fund CEO Hun Gan said R2Crete has the potential to reshape the concrete supply chain as it is “tackling one of the world’s largest waste and emissions challenges with a solution that is scientifically robust and commercially compelling”. Credit: UoM.
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