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Dynamic behaviour of concrete: tests of slabs with a shock tube

  • Experimental Methods and Devices
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Abstract

This article presents the experimental program and first results of shock-tube tests on concrete slabs. It follows the description of the test in Toutlemonde, F., Boulay, C. and Gourraud, C., ‘Shock-tube tests of concrete slabs’, Mater. Struct.26 (1993) 38–42. The plan of experiments carried out in1991–1992 was performed to get better control of the shock (blast, impact, impulsive loading) resistance of concrete structures. Some conclusions are drawn concerning the role of free water (i.e., evaporable, or non-chemically bonded) in the pores of concrete, which can explain the loading rate effects that have been observed.

Resume

Cet article présente le programme expérimental et les premiers résultats obtenus lors d'essais de dalles à l'aide d'un tube à choc. Il fait suite à la description de la procédure d'essai présentée en détail dans un précédent article (Toutlemonde, F., Boulay, C. et Gourraud, C. ‘Shock-tube tests of concrete slabs’ Mater. Struct.26 (1993) 38–42). Le programme des essais réalisés en 1991–1992 visait à obtenir une meilleure connaissance de la résistance au choc (souffle, impacts, chargements impulsionnels) des structures en béton. Un certain nombre de conclusions sont présentées, concernant le rôle de l'eau libre (évaporable, ou encore non liée chimiquement) au sein des pores du béton, qui pourrait expliquer les effets de vitesse observés.

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Authors and Affiliations

  1. Section des Bétons, Laboratoire Central des Ponts et Chaussées, 58 bd Lefebvre, 75732, Paris Cedex, France

    François Toutlemonde, Pierre Rossi & Claude Boulay

  2. Section des Caractéristiques de Surface des Chaussées, Laboratoire Central des Ponts et Chaussées, Centre de Nantes, B.P. 19, 44340, Bouguénais, France

    Christian Gourraud

  3. Laboratoire Regional des Ponts et Chaussées de Toulouse, Complexe Scientifique de Rangueil, 1 Avenue du Colonel Roche, 31400, Toulouse, France

    Dominique Guedon

Authors
  1. François Toutlemonde
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  2. Pierre Rossi
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  3. Claude Boulay
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  4. Christian Gourraud
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  5. Dominique Guedon
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Toutlemonde, F., Rossi, P., Boulay, C. et al. Dynamic behaviour of concrete: tests of slabs with a shock tube. Materials and Structures 28, 293–298 (1995). https://doi.org/10.1007/BF02473264

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