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PHNX Materials found a way to decarbonize concrete using dirty coal waste
PHNX Materials has devised a way to strip fly ash of sulfur and aluminum, impurities that concrete companies would rather avoid.
By displacing cement in concrete, fly ash from coal plants can eliminate a significant chunk of the material’s carbon footprint. Fly ash’s secret is that it helps to stabilize a concrete mix, said Jorge Osio-Norgaard, PHNX Materials co-founder and CTO. By addressing — and potentially profiting from — the impurities that lace the majority of the 843 fly ash landfills in the U.S., PHNX thinks it can offer the concrete industry a lower carbon option.
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