Abdul, W. orcid.org/0000-0002-2732-4502, Rößler, C., Mawalala, C. et al. (3 more authors) (2023) Thermodynamic modelling of Portland cement clinkers. In: Thailand Concrete Association, (ed.) Further Reduction of CO2 -Emissions and Circularity in the Cement and Concrete Industry. 16th International Congress on the Chemistry of Cement 2023 - ICCC2023, 18-22 Sep 2023, Bangkok, Thailand. International Congress on the Chemistry of Cement (ICCC) , pp. 603-606.
Abstract
Research into thermodynamic modelling allows for product and process optimisation of Portland cement clinkers. Due to the magnitude and chemistry of clinker production, there is a great challenge in modelling such a complex system. The CALPHAD (CALculation of PHAse Diagrams) approach provides a method in overcoming this challenge, by constructing a model, step-by-step with increasing complexity, i.e., starting with the pure solids and liquid to modelling binary and ternary melts, and moving on to higherorder systems, and with the possibility to eventually embed mobility. This approach has had great success in the metals industry and has allowed for production optimisation for a variety of alloys. In this project, we have developed a thermodynamic database for the CaO-Al2O3-SiO2-Fe-O-MgO system. This provides a much-needed update to the underlying thermodynamic data. In addition, prediction calculations made with our thermodynamic database are compared against technical clinkers analysed by XRD, XRF, and SEM-EDX. Future work will include developing further extensions to the thermodynamic database to include other elements such as sulfur to further model clinker diversity.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Editors: |
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Copyright, Publisher and Additional Information: | © 2023 International Congress on the Chemistry of Cement (ICCC). All papers in the 2023 conference proceedings are published under the license CC-BY-ND 4.0. (https://creativecommons.org/licenses/by-nd/4.0/legalcode) |
Keywords: | Thermodynamic modelling; Clinker; Clinker prediction; CALPHAD; Characterisation |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Materials Science and Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 11 Oct 2023 16:03 |
Last Modified: | 11 Oct 2023 16:03 |
Published Version: | https://www.iccc-online.org/archive/ |
Status: | Published |
Publisher: | International Congress on the Chemistry of Cement (ICCC) |
Refereed: | Yes |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:204178 |