Abstract
The evolution of tricalcium silicate (C3S) microstructure with or without small inert grains during hydration is tri-dimensionally simulated based on an “Integrated Particle Kinetics Model.” The products of the reaction are calcium silicate hydrate (C-S-H) and calcium hydroxide (CH); the first is deposited on the hydrated particle and the second is nucleated in the pore space. The pore volume and the contact surfaces between the hydrated particles and the inert grains are calculated, and the microstructural developments is demonstrated at various degrees of hydration. Several examples of the C3S microstructure development with different size distributions, with or without small-size inert grains, are presented. The influences of the inert grains on the overall degree of hydration, the total contact surfaces, and on the setting time of the hydrated cement are shown. In these examples, the size of cement particles varies from 6 mm to 60 mm and the inert grains have a diameter of 4 mm.
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© 1996 Springer Science+Business Media Dordrecht
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Navi, P., Pignat, C. (1996). Simulation of Effects of Small Inert Grains on Cement Hydration and Its Contact Surfaces. In: Jennings, H., Kropp, J., Scrivener, K. (eds) The Modelling of Microstructure and its Potential for Studying Transport Properties and Durability. NATO ASI Series, vol 304. Springer, Dordrecht. https://doi.org/10.1007/978-94-015-8646-7_10
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DOI: https://doi.org/10.1007/978-94-015-8646-7_10
Publisher Name: Springer, Dordrecht
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