| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Bauxite Residue Valorization and Best Practices
|
| Presentation Title |
Mineralogy Prediction for Iron-Rich Sulfo-Aluminate Cements Made from Elevated Contents of Bauxite Residue |
| Author(s) |
Rahul Roy, Debadri Som, Tobias Hertel, Yiannis Pontikes |
| On-Site Speaker (Planned) |
Rahul Roy |
| Abstract Scope |
Bogue equations is a system of simultaneous mathematical linear equations widely used by the industry to determine the mineralogy of the Portland cement clinker. In this study, a novel approach has been undertaken to formulate a new set of modified Bogue equations for raw-meal compositions constituting > 15% Fe2O3 and > 2% TiO2. The approach incorporates the use of electron probe micro-analysis (EPMA) and X-ray fluorescence spectroscopy (XRF) to determine the crystalline and chemical composition of the synthesized clinkers, which provides the basis for a matrix inverse method to solve new linear equations. This method improves the accuracy of predicting the mineralogy of Fe-rich clinkers, enabling users to incorporate resources such as bauxite residue and synthesize iron-rich sulfo-aluminate cements. The obtained mathematical linear equations are integrated in the beta SREbind version, and their use is demonstrated along with the SREmix. |
| Proceedings Inclusion? |
Planned: TMS Journal: Journal of Sustainable Metallurgy |
| Keywords |
High-Temperature Materials, Other, |