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I read it again, twice. That is exactly what they’re doing. Their starting material is CO2-source cement, not some natural “rock”. Counterexamples are substa
by innocentfelon 8y ago
I read it again, twice. That is exactly what they’re doing.
Their starting material is CO2-source cement, not some natural “rock”.
Counterexamples are substantially more helpful than downvotes.
- raverbashing 8y agoIt seems they're not replacing the quicklime, but the gravel. The left column is confusing, the right column is better. > A rock particle is coated with our synthetic limestone, forming a carbon-sequestering coating that is 44% by mass CO2. That's where the CO2 goes, not in curing the CaO
- 08-15 8y agoBut where does the Ca come from? Obviously not from limestone...