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Nuclear Relaxation of Water Confined in Reactive Powder Concrete

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Nuclear Magnetic Resonance Spectroscopy of Cement-Based Materials

Abstract

We use two complementary techniques to exhibit the microposity of the reactive powder concrete (RPC). The differential scanning calorimetry of water in RPC evidences pore sizes in the nanometer range. The proton NMR in RPC confirms this result. The typical frequency dependence of the measured proton relaxation rates proves unambiguously the influence of the paramagnetic impurities at the surface of the pores. A theoretical interpretation in terms of the biphasic fast exchange model and the proton nuclear paramagnetic relaxation of an hydrated ion at the surface of the pores allow to obtain an estimation of the average pore sizes. The measured fractional magnetizations confirm that RPC porosity mainly consists of pores with average sizes smaller than a threshold value.

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Author information

Authors and Affiliations

  1. Laboratoire de Physique de la Matière Condensée, URA CNRS 1254, Ecole Polytechnique, 91128, Palaiseau, France

    J.-P. Korb & D. Petit

  2. Laboratoire de Physique et de Mécanique des milieux hétérogènes, URA CNRS 857, ESPCI, 10 Rue Vauquelin, 75231, Paris Cedex 05, France

    S. Philippot & H. Zanni

  3. Direction Scientifique BOUYGUES, 78061, St Quentin en Yvelines, France

    V. Maret & M. Cheyrezy

Authors
  1. J.-P. Korb
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  2. D. Petit
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  3. S. Philippot
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  4. H. Zanni
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  5. V. Maret
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  6. M. Cheyrezy
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Editor information

Editors and Affiliations

  1. CTG Italcementi-Ciments Français, rue des Technodes, 78931, Guerville, France

    Pierre Colombet

  2. ESPCI, 10 rue Vauquelin, 75231, Paris Cedex 5, France

    Hélène Zanni

  3. Institut für Chemie, Humboldt-Universität, Rudower Chaussee, Haus 4.1, 12484, Berlin, Germany

    Arnd-Rüdiger Grimmer

  4. Dipartimento di Scienza dei Materiali, Chimica e Technologia dei Materiali, Universita degli Studi di Milano, Via Emanueli 15, 20126, Milano, Italy

    Piero Sozzani

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© 1998 Springer-Verlag Berlin Heidelberg

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Korb, JP., Petit, D., Philippot, S., Zanni, H., Maret, V., Cheyrezy, M. (1998). Nuclear Relaxation of Water Confined in Reactive Powder Concrete. In: Colombet, P., Zanni, H., Grimmer, AR., Sozzani, P. (eds) Nuclear Magnetic Resonance Spectroscopy of Cement-Based Materials. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-80432-8_26

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  • DOI: https://doi.org/10.1007/978-3-642-80432-8_26

  • Publisher Name: Springer, Berlin, Heidelberg

  • Print ISBN: 978-3-642-80434-2

  • Online ISBN: 978-3-642-80432-8

  • eBook Packages: Springer Book Archive

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