Ledger · 2026-09-01 · Ceramics / Refractory Materials
Cement-Free Refractory Castables via Potassium-Activated Metakaolin Geopolymerization
Cleared
This concept cleared all seven gates and every voiding sub-test.
| Incumbent displaced | Calcium Aluminate Cement (CAC) Castables |
| Measured advantage | Categorical elimination of 24-48 hr slow bake heat-up schedule (zero steam spalling) and >2x high-temperature CMOR flexural strength (39.1 MPa) |
| Time to first revenue | 6 months |
| Gross margin at parity | 81.5% |
| Startup CapEx | $137,000 |
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Mechanism, operating protocol with real conditions and yields, computed unit economics with a six-scenario stress test, the absence audit, and every resolved citation.
Assessed 2026-09-01 against seven gates plus the voiding sub-tests. How the method works · Browse all concepts