Quantitative study on growth and porosity of C-S-H structures: Experiments and simulations

Nguyen-Tuan L, Becker F, Kleiner F, Naber C, Etzold MA, Rößler C, Ludwig HM (2023)

Publication Type: Journal article

Publication year: 2023

Journal

Cement and Concrete Research Elsevier

Book Volume: 174

Pages Range: 107294

Article Number: 107294

DOI: 10.1016/j.cemconres.2023.107294

Abstract

Coupling of microstructural and physico-chemical modelling of cement hydration is a key step towards prediction of material performance. In this paper, a physico-chemical model based on surface reactions and ion transports is proposed to capture the development of calcium-silicate-hydrate (C-S-H) not only at an early age but also at later ages of hydration (e.g, up to 28 days). Furthermore, we introduce a random sampling method to quantify pore size distribution and phase fractions in the 3D simulation, which are available for the comparison with experimental data. The latest experimental techniques were used to quantify the development of the C-S-H as well as its pore sizes, e.g. SEM, 

H NMR , XRD during hydration. By combining observations from experiments and simulations, we can explain the densification of C-S-H during the hydration.

Authors with CRIS profile

Franz Becker Lehrstuhl für Mineralogie Christoph Naber Lehrstuhl für Mineralogie

Involved external institutions

Bauhaus-Universität Weimar DE Germany (DE) University of Cambridge GB United Kingdom (GB)

How to cite

APA:

Nguyen-Tuan, L., Becker, F., Kleiner, F., Naber, C., Etzold, M.A., Rößler, C., & Ludwig, H.M. (2023). Quantitative study on growth and porosity of C-S-H structures: Experiments and simulations. Cement and Concrete Research, 174, 107294. https://doi.org/10.1016/j.cemconres.2023.107294

MLA:

Nguyen-Tuan, Long, et al. "Quantitative study on growth and porosity of C-S-H structures: Experiments and simulations." Cement and Concrete Research 174 (2023): 107294.

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