C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 28/02 (2006.01) C04B 14/06 (2006.01) C04B 14/20 (2006.01) C04B 14/38 (2006.01) C04B 16/06 (2006.01) C04B 18/08 (2006.01) C04B 18/14 (2006.01) C04B 20/10 (2006.01) C04B 40/00 (2006.01)
Patent
CA 2332637
The invention concerns a concrete comprising organic fibres dispersed in a cement matrix. By combining a cement matrix with predetermined characteristics and organic fibres likewise with predetermined characteristics, in particular the size of the particles, the length and diameter of the fibres, by a synergistic effect between the matrix and the organic fibres, the behaviour of the concrete is improved both with respect to the occurrence of minute cracks and the propagation of large cracks. The figure is a graph resulting from four-point bend tests for metal fibre concrete mixes and organic fibre concrete mixes.
L'invention concerne un béton comportant des fibres organiques dispersées dans la matrice cimentaire. En combinant une matrice cimentaire de caractéristiques déterminées et des fibres organiques également de caractéristiques déterminées, notamment la grosseur des particules, la longueur et le diamètre des fibres, par un effet de synergie entre la matrice et les fibres organiques, on améliore le comportement du béton à la fois vis-à-vis de l'apparition de microfissures et de la propagation de macrofissures. La figure est un graphique obtenu par des essais de flexion quatre points respectivement pour des bétons de fibres métalliques et des bétons de fibres organiques.
Boivin Sandra
Cheyrezy Marcel
Dugat Jerome
Frouin Laurent
Orange Gilles
Bouygues
Bouygues Travaux Publics
Gowling Lafleur Henderson Llp
Lafarge
Rhodia Chimie
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