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Water isotherms, shrinkage and creep of cement paste: Hypotheses, models and experiments

Jennings, H.M., Masoero, E., Pinson, M.B., Strekalova, E.G., Bonnaud, P.A., Manzano, H., Ji, Q., Thomas, J.J., Pellenq, R.J.-M., Ulm, F.-J., Bazant, M.Z. and Van Vliet, K.J. 2013. Water isotherms, shrinkage and creep of cement paste: Hypotheses, models and experiments. Presented at: 9th International Conference on Creep, Shrinkage, and Durability Mechanics 2013 (CONCREEP-9), Cambridge, MA, USA, 22-25 September 2013. Published in: Franz-Josef, Ulm, Hamlin, Jennings M. and Pellenq, Roland J. -M. eds. Mechanics and Physics of Creep, Shrinkage, and Durability of Concrete: A Tribute to Zdeněk P. Bažant. ASCE, pp. 134-141. 10.1061/9780784413111.015

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Cement paste has a complex mesoscale structure, and small changes in its pore network potentially cause large variation in measurements such as the water isotherm (also nitrogen). We deconvolute the water isotherm with the help of advanced computational techniques, hypotheses, and a re-examination of published data. The pore system is divided into four different categories, each containing water with its own physical properties. By viewing the highly interdependent roles of water in each of the pore categories as a system, new insights are gained regarding possible mechanisms that control drying, shrinkage, and creep, and experimental strategies for verification.

Item Type: Conference or Workshop Item (Paper)
Status: Published
Schools: Engineering
Publisher: ASCE
ISBN: 9780784413111
Last Modified: 28 Oct 2021 16:15

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