I found a similar concept here.
Climate Tech | Brimstone
The process is proprietary and starts with low-carbon materials. Combining cement and aggregate production within one location also reduces the carbon footprint. Looks like they have completed the proof of concept phase. I believe the material has to meet IBC standards before it is widely accepted. The goal is for the binding agent to be identical to Portland Cement. Only the process of producing it is different.
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Chad Morrison P.E., F.ASCE
Professional Engineer
Greenville RI
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