Fibre reinforced concrete

Details Fibre reinforced concrete Fibre reinforced concrete

E - Fixed Constructions

04

C

E04C 5/01 (2006.01)

Patent

CA 2471608

Fibre reinforced concrete comprises thin steel wire of diameter between 0.05 and 0.3 mm such as cut from recycled vehicle tyres. To avoid the problem of balling when mixing, two alternatives are suggested. The first consists of strands of fibre, which demonstrate excellent bond characteristics. The second consists of a mixture of fibre lengths and thicknesses, giving a wide distribution of 1/d ratios not exceeding 250, which has the effect of reducing balling tendency so that significant densities can be achieved.

L'invention concerne du béton armé par fibres, comprenant un mince fil d'acier de diamètre compris entre 0,005 et 0,3 mm, tel que découpé dans des pneus recyclés de véhicules. Afin de pallier le problème d'agglomération au moment du mélange, il est suggéré deux solutions. La première concerne des brins de fibres qui présentent d'excellentes caractéristiques en termes de liaison. La seconde solution concerne un mélange de longueurs et d'épaisseurs de fibres, conférant une large répartition de rapports l/d ne dépassant pas 250, ce qui a pour effet de réduire la tendance à l'agglomération, de manière à pouvoir obtenir des masses volumiques conséquentes.

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