L'invention concerne l'obtention d'un béton ayant une résistance à la compression d'au moins 400 MPa et une énergie de fracturation d'au moins 1 000 J/m2. On malaxe un mélange contenant essentiellement du cent, du sable fin, de la silice amorphe, du quartz broyé, de la laine d'acier, un fluidifiant, et de l'eau dans des proportions spécifiques et, après la prise, on cuit le béton à ...

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Record 2, Textual support, English Record number: 2, Textual support number: 1 DEF. An air-supplying respirator that contains a carried-on tank of compressed air and that protects

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en This panel support mounting comprises: a plurality of first support beams disposed at constant intervals so as to be parallel to each other; a plurality of second support beams spanning between the adjacent first support beams so as to be orthogonal to each of the first support beams and parallel to each other at fixed intervals; and a plurality of support columns erected on an installation ...

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Aug 13, 2008· 1. A device for reinforcing a pylon foundation against being pulled out, said foundation comprising at least one block (10) which is buried in the ground of the site of the foundation and that presents a portion (12) of greatest section in a horizontal plane, the device being characterised in that it comprises a slab (20) buried in the ground and disposed around said block (10) between said ...

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