low-carbon-concrete
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Neocrete wants your concrete to cost less. The secret is in the ash.
The Auckland company is turning low-performing ash into a useful cement replacement. In Brunei, its first scale customer reports lower carbon and a US$6 saving on every cubic metre.
Verustruct
Verustruct is a New Haven-based construction-technology company building a gantry-less 3D printing system to make affordable, sustainable housing at scale. Founded by former SpaceX engineer Nick Callegari, its patent-pending translational slipform printer extrudes load-bearing walls with embedded mechanical, electrical, and plumbing systems, then scales itself up layer by layer, sidestepping the bulky gantry frames that cap the size of most additive-construction projects. Organized as a public benefit corporation, Verustruct aims to cut home construction cost by roughly half and emissions by around 40 percent.