A Bay Area startup founded by an MIT-trained engineer has poured its essentially “emission-free” concrete for the first time, company officials said.
C-Crete Technologies’ first project, a commercial redevelopment on Seattle’s north side, utilized 60 tons of its novel material instead of conventional concrete.
The concrete commonly used in building and infrastructure projects worldwide is generally made with cement known as “Portland cement,” a material that C-Crete executives said accounts for about 7% of the world’s total carbon dioxide emissions.
C-Crete said its concrete, by contrast, is “cement-free.” An alternative concrete binder results in “essentially” zero carbon emissions, and over time, the material actually absorbs carbon dioxide.
The concrete at the Seattle project this summer flowed effectively, displayed high durability, and had a loading strength that exceeded industry standards. It was also made from industrial byproducts and “abundant” natural minerals.
Rouzbeh Savary, the company’s founder and president, said that because the material can be a “drop-in” replacement for conventional concrete, it represents a “game-changer” for sustainable construction. The company hopes to increase its scale rapidly following a successful debut, which could include partnerships with interested ready-mix concrete companies.
Federal officials, meanwhile, are also heavily invested in the company’s potential. MIT News noted that the company recently received millions from the U.S. Energy Department to expand its materials portfolio and carbon-capture capabilities.
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