Utilising the principles of FeCO3 scaling for cementation in H2O-CO2(g)-Fe system
Source abstract
Abstract
Abstract FeCO3 scaling is utilised in a system of closely packed wet Fe-particles (10 μm) to prepare blocks composed of unreacted Fe-cores connected by a ‘cementing matrix of FeCO3 scales’. Within four hours of carbonation at different temperatures (30 °C – 90 °C) and CO2-pressures (1 barg–20 barg), a compressive strength of up to 160 MPa, and a siderite (FeCO3) content of up to 28 % is observed. Typical rhombohedral and atypical needle-shaped FeCO3 crystal morphologies are observed. The dependence of phase composition/morphologies on reaction conditions/processes is discussed. This study is proposed as a prelude towards utilisation of Fe-rich industrial wastes for cementation.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Concrete and Cement Materials Research · Corrosion Behavior and Inhibition · CO2 Sequestration and Geologic Interactions
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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