C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
C04B 26/02 (2006.01) C04B 14/42 (2006.01)
Patent
CA 2708085
The invention provides a ductile ultra-high performance concrete which comprises in relative parts by weight: 100 of Portland cement; 50 to 200 of a sand having a single grading with a D10 to D90 between 0.063 and 5mm, or a mixture of sands, the finest sand having a D10 to D90 between 0.063 and 1mm and the coarsest sand having a D10 to D90 between 1 and 5mm; 0 to 70 of a particulate pozzolanic or non-pozzolanic material or mixture thereof having a mean particle size less than 15µm; 0.1 to 10 of a water-reducing superplasticizer; 10 to 30 of water; and 0.5 to 5 % by volume relative to the volume of the hardened composition of glass fibres having an aspect ratio of 6 to 120.
L'invention porte sur un béton à performance ultra-élevée ductile qui comprend en parties relatives en poids : 100 de ciment Portland; 50 à 200 d'un sable ayant un classement unique avec un diamètre D10 à D90 compris entre 0,063 et 5 mm, ou un mélange de sables, le sable le plus fin ayant un diamètre D10 à D90 compris entre 0,063 et 1 mm et le sable le plus grossier ayant un diamètre D10 à D90 compris entre 1 et 5 mm; 0 à 70 d'une matière pozzolanique ou non pozzolanique particulaire ou d'un mélange de celle-ci ayant une dimension moyenne des particules inférieure à 15 µm; 0,1 à 10 d'un superplastifiant de réduction d'eau; 10 à 30 d'eau; et 0,5 à 5 % en volume par rapport au volume de la composition durcie de fibres de verre ayant un rapport longueur/diamètre allant de 6 à 120.
Chanvillard Gilles
Fonollosa Philippe
Rigaud Stephane
Lafarge
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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