Clinkering-free cementation by fly ash carbonation

Zhenhua Wei,Bu Wang,Gabriel Falzone,Erika Callagon La Plante,Monday Uchenna Okoronkwo,Zhenyu She,Tandre Oey,Magdalena Balonis,Narayanan Neithalath,Laurent Pilon,Gaurav Sant

Journal of CO2 Utilization（2018）

Cited 64|Views4

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Abstract

•Fly ashes can be readily carbonated in dilute CO2 streams (“flue gas”).•The carbonated solids offer robust cementation in relation to their mobile Ca-content.•Carbonation is readily facilitated at sub-boiling temperatures—e.g., by using the waste heat contained in flue gas—thereby creating low-energy pathways for cementation.

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Key words

Fly ash,Cementation,CO2,Upcycling,Strength,Concrete

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