Lily Wachter
lily.wachter@biomason.com
Tech
Biocement® grows in ambient temperatures, building with carbon to create controlled, structural cement for products or applied services.
Deploy
Precast products, field-tested shoreline defense, soil stabilization, and logistical infrastructures that actively sequester environmental carbon.
Laura Berland-Shane
laura@blueplanetsystems.com
Tech
Geomimetic mineralization technology uses COâ‚‚ from any source as a feedstock to create carbon-negative aggregate.
Deploy
Coarse and fine aggregates containing sequestered COâ‚‚ for cast in place concrete deployed via ready-mix concrete producers.
Impact
CarbonStar rating of -494 lbs of COâ‚‚ per cubic yard of concrete.
Simon G. Brandler
simon@brimstone.com
Tech
Carbon-negative process that produces portland cement and SCM from a carbon-free calcium silicate rock instead of limestone.
Deploy
Portland cement from the Brimstone process is physically and chemically identical to conventional portland cement.
Impact
As reflected in a third-party LCA, the Brimstone process is carbon-negative across a range of energy-use scenarios.
Sal Brzozowski
sbrzozowski@carbonbuilt.com
Tech
Ultra-low carbon concrete process technology combines a retrofit of existing concrete masonry plants using off-the-shelf equipment and new mix designs that include low-carbon raw materials and waste COâ‚‚.
Deploy
Commercially available concrete masonry units at CarbonBuilt's flagship retrofit in Alabama, with additional retrofits underway.
Impact
70-100% carbon footprint reduction, through both avoidance and mineralization, compared to facility baseline.
Greg Houchins
greg@chement.co
Tech
Renewable electricity + CaCO3 to perform the chemical reaction with less energy and less COâ‚‚ emitted + cheaper carbon capture.
Deploy
Cement for cast in place concrete deployed via ready-mix concrete producers.
Impact
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More efficient production

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No energy emissions

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Easier carbon capture
Connor Woodrich
cwoodrich@forteraglobal.com
Tech
The Fortera ReCarb™ process re-carbonates Calcium Oxide without losing its cementitious properties, resulting in a cementitious mineral that is rich in COâ‚‚.
Deploy
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SCM blend up to 35%

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100% OPC substitute
Impact
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70-100% Reduction in CO₂ per ton of cement

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Commercial Plant in Redding, CA
Sarah William
sarah.williams@minusmaterials.com
Tech
Microalgae, sunlight, and seawater to capture and store carbon dioxide as biogenic limestone.
Deploy
Carbon-negative biogenic limestone that can help the cement industry achieve significant emissions reductions.
Impact
Elimination of all mineral emissions during traditional cement manufacturing.
Patrick Grasso
pgrasso@urbanminingind.com
Tech
Pozzotive® is a ground glass pozzolan made from post-consumer glass that decarbonizes cementitious products by replacing portland cement.
Deploy
Pozzotive® replaces up to 50% of portland cement in products including ready-mix, pre-cast, block, brick, pavers, and mortars. It yields a stronger, more durable, high-performance concrete with significantly greater resistance to chloride and sulfate penetration.
Impact
Pozzotive® reduces CO2e from cement in concrete on a nearly a ton-for-ton basis as verified by a Climate Earth Type III EPD while diverting glass from landfills and promoting circularity.
Loren Burnett
loren@prometheusmaterials.com
Tech
Combines naturally occurring microalgae with other essential components to create a zero-carbon bio-cement.
Deploy
When mixed with aggregate, forms a zero-carbon bio-concrete.
Impact
Avoids the carbon-intensive operations involved in manufacturing and transporting traditional cement, sequesters embodied carbon from microalgae and biomineralization, returns virtually all production-based water to the earth.
Daniel Kopp
daniel@queenscarbon.com
Tech
Chemical manufacturing via increase to ambient pressure/atmospheres.
Deploy
Supplementary cementitious materials for cast in place concrete deployed via ready-mix concrete producers.
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Joe Hicken
joe@sublime-systems.com
Tech
Electrochemical extraction of calcium and reactive silica from non-carbonate feedstock resulting in ASTM C1157 cement.
Deploy
Ultra-low-carbon cement for cast in place concrete deployed via ready-mix concrete producers.
Impact
Independent third-party LCA (preliminary EPD) indicating >93% reduction in COâ‚‚.
Michele Blackburn
mblackburn@terraco2.com
Tech
Conversion of inexpensive, abundant, and local feedstocks from existing aggregate mines to high-performing and cost-competitive cementitious materials.
Deploy
Supplement, blend, or replace Portland cement.
Geography
Headquarters and pilot plant located in Golden, Colorado.