Company lei.zhang@earth4Earth.co.uk
Issued 9 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: - Lime-stabilised rammed earth and engineered carbon-negative bricks - DCUS technology – a full-circle carbon strategy: from decarbonised production to agricultural reuse - Design inspiration from Fujian Tulou – the historic Chinese earth structures - Engineering and sustainability performance benchmarking - Application potential in residential, infrastructure, and landscape architecture
- DCUS manufacturing overview: room-temperature lime, no fossil fuels, and compressed (not fired) bricks to cut embodied carbon. - Carbonation mechanism: how the binder captures CO₂ throughout the life cycle and locks it as stable carbonates. - Circularity & end-of-life: excavated soil as feedstock; bricks are recyclable or can return to soil with carbon retained.
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