Issued 26 September 2025
This session introduces a new generation of building materials developed from waste excavated soil and novel lime technology – products that not only rival conventional bricks in performance but actively remove CO₂ from the atmosphere throughout their lifecycle. The talk will cover: a) Lime-stabilised rammed earth and engineered carbon-negative bricks b) DCUS technology – a full-circle carbon strategy: from decarbonised production to agricultural reuse c) Design inspiration from Fujian Tulou – the historic Chinese earth structures d) Engineering and sustainability performance benchmarking e) Application potential in residential, infrastructure, and landscape architecture
a) DCUS manufacturing overview: room-temperature lime, no fossil fuels, and compressed (not fired) bricks to cut embodied carbon. b) Carbonation mechanism: how the binder captures CO₂ throughout the life cycle and locks it as stable carbonates. c) Circularity & end-of-life: excavated soil as feedstock; bricks are recyclable or can return to soil with carbon retained.
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