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Study of Hydration Properties for Blast Furnace Slag-Blended Cement: Prediction of Slag Hydration Kinetics
https://orcid.org/http://orcid.org/0000-0002-1068-9214
https://orcid.org/http://orcid.org/0000-0002-9641-5846
https://orcid.org/http://orcid.org/0000-0003-0027-344X
https://orcid.org/http://orcid.org/0000-0001-6091-8487
https://orcid.org/http://orcid.org/0000-0002-1730-6538
Blast furnace slag (BFS) is an industrial by-product that has been used to replace clinker in Ordinary Portland Cement (OPC) to reduce the CO2 footprint impact in the construction field. Moreover, the use of BFS leads to an enhancement in terms of mechanical and durability properties. A solid comprehension of hydration properties is essential to achieve a better understanding of durability properties. In this context, this study deals with the hydration processes (BFS)-blended cement in terms of kinetics. For that purpose, a simplified analytical model is proposed to get the evolution of the hydration degree in time. The input data required are the formulation parameters, i.e., water-to-cement ratio (W/C) and the fraction of slag used respectively. The model is validated with experimental measurements of the evolution of the hydration kinetics, based on the results of a ThermoGravimetric Analysis (TGA), which are performed on different cement pastes formulated with BFS-blended cement. Finally, the present study is supplemented by a comparison between the results obtained by the TGA method and those provided by open-source software (VCCTL).
Study of Hydration Properties for Blast Furnace Slag-Blended Cement: Prediction of Slag Hydration Kinetics
https://orcid.org/http://orcid.org/0000-0002-1068-9214
https://orcid.org/http://orcid.org/0000-0002-9641-5846
https://orcid.org/http://orcid.org/0000-0003-0027-344X
https://orcid.org/http://orcid.org/0000-0001-6091-8487
https://orcid.org/http://orcid.org/0000-0002-1730-6538
Blast furnace slag (BFS) is an industrial by-product that has been used to replace clinker in Ordinary Portland Cement (OPC) to reduce the CO2 footprint impact in the construction field. Moreover, the use of BFS leads to an enhancement in terms of mechanical and durability properties. A solid comprehension of hydration properties is essential to achieve a better understanding of durability properties. In this context, this study deals with the hydration processes (BFS)-blended cement in terms of kinetics. For that purpose, a simplified analytical model is proposed to get the evolution of the hydration degree in time. The input data required are the formulation parameters, i.e., water-to-cement ratio (W/C) and the fraction of slag used respectively. The model is validated with experimental measurements of the evolution of the hydration kinetics, based on the results of a ThermoGravimetric Analysis (TGA), which are performed on different cement pastes formulated with BFS-blended cement. Finally, the present study is supplemented by a comparison between the results obtained by the TGA method and those provided by open-source software (VCCTL).
Study of Hydration Properties for Blast Furnace Slag-Blended Cement: Prediction of Slag Hydration Kinetics
https://orcid.org/http://orcid.org/0000-0002-1068-9214
https://orcid.org/http://orcid.org/0000-0002-9641-5846
https://orcid.org/http://orcid.org/0000-0003-0027-344X
https://orcid.org/http://orcid.org/0000-0001-6091-8487
https://orcid.org/http://orcid.org/0000-0002-1730-6538
Blast furnace slag (BFS) is an industrial by-product that has been used to replace clinker in Ordinary Portland Cement (OPC) to reduce the CO2 footprint impact in the construction field. Moreover, the use of BFS leads to an enhancement in terms of mechanical and durability properties. A solid comprehension of hydration properties is essential to achieve a better understanding of durability properties. In this context, this study deals with the hydration processes (BFS)-blended cement in terms of kinetics. For that purpose, a simplified analytical model is proposed to get the evolution of the hydration degree in time. The input data required are the formulation parameters, i.e., water-to-cement ratio (W/C) and the fraction of slag used respectively. The model is validated with experimental measurements of the evolution of the hydration kinetics, based on the results of a ThermoGravimetric Analysis (TGA), which are performed on different cement pastes formulated with BFS-blended cement. Finally, the present study is supplemented by a comparison between the results obtained by the TGA method and those provided by open-source software (VCCTL).
Study of Hydration Properties for Blast Furnace Slag-Blended Cement: Prediction of Slag Hydration Kinetics
RILEM Bookseries
Jędrzejewska, Agnieszka (editor) / Kanavaris, Fragkoulis (editor) / Azenha, Miguel (editor) / Benboudjema, Farid (editor) / Schlicke, Dirk (editor) / Ali Ahmad, Mohamad (author) / Ranaivomanana, Harifidy (author) / Bonnet, Stéphanie (author) / L’Hostis, Valérie (author) / Buttin, Paul (author)
International RILEM Conference on Synergising expertise towards sustainability and robustness of CBMs and concrete structures ; 2023 ; Milos Island, Greece
2023-06-09
12 pages
Article/Chapter (Book)
Electronic Resource
English
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