Chemical and physical influences of various carbonated hydrated cements on the early hydration of a composite cement
Singer M, Deffner L, Collin M, Gädt T, Jansen D (2026)
Publication Type: Journal article
Publication year: 2026
Journal
Book Volume: 204
Article Number: 108216
DOI: 10.1016/j.cemconres.2026.108216
Abstract
Novel supplementary cementitious materials (SCMs) such as carbonated cement pastes (cCP) are needed to achieve the sustainability objectives of the cement industry. In this study, cCPs are produced by aqueous carbonation using various hydrated CEM I and fully characterized. The hydration of the different ordinary Portland cement–cCP mixes is then tracked using heat flow calorimetry, quantitative in-situ XRD and pore solution analysis in combination with thermodynamic modeling, Imeter measurements and small angle oscillatory shear experiments. Results show that it is not the initial CEM I chemistry, but rather the physicochemical properties of the cCP that are crucial for the early hydration behavior of the mixes. In the presence of cCP, the ettringite formation rate during the induction period is enhanced, thereby affecting the rheological properties of the cement paste. Before the start of the main silicate reaction, the increased ettringite formation rate in the cCP systems strongly promotes the build-up of a structural network of the cement paste.
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Germany (DE)How to cite
APA:
Singer, M., Deffner, L., Collin, M., Gädt, T., & Jansen, D. (2026). Chemical and physical influences of various carbonated hydrated cements on the early hydration of a composite cement. Cement and Concrete Research, 204. https://doi.org/10.1016/j.cemconres.2026.108216
MLA:
Singer, Marie, et al. "Chemical and physical influences of various carbonated hydrated cements on the early hydration of a composite cement." Cement and Concrete Research 204 (2026).
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