Fibrous sheet for structure reinforcement and structure...

D - Textiles – Paper – 04 – B

Patent

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D04B 21/14 (2006.01) E04C 5/07 (2006.01)

Patent

CA 2229343

A fibrous sheet for structure reinforcement comprising a sheet layer of a reinforcing continuous filament bundles (1) arranged parallelly spaced out from each other, auxiliary covering yarns (3, 4) arranged on both sides of the sheet layer in such a manner that each of the covering yarns intersects respective reinforcing filament bundles (1) while meandering along the longitudinal direction of the reinforcing filament bundles on at least one side of the sheet layer and auxiliary chain-stitching yarns (6) which interconnect the auxiliary covering yarns on one side of the sheet layer with the auxiliary covering yarns on the other side of the sheet layer through individual spaces among adjacent reinforcing filament bundles in a warp knitting structure.

L'invention concerne une feuille fibreuse pour renforcement de structure, comportant une couche stratiforme de faisceaux de filaments continus d'armature (1) espacés parallèlement les uns des autres, des fils de recouvrement auxiliaires (3, 4) disposés sur les deux faces de la couche stratiforme de telle manière que chacun des fils de recouvrement croise les faisceaux de filaments d'armature respectifs (1) tout en serpentant dans le sens longitudinal de ces derniers sur au moins une face de la couche stratiforme, ainsi que des fils points de chaînette auxiliaires (6) qui croisent les fils de recouvrement auxiliaires sur une face de la couche stratiforme avec les fils de recouvrement auxiliaires sur l'autre face de la couche stratiforme à travers des espaces individuels parmi des faisceaux de filaments d'armature adjacents dans une structure de tricotage en chaîne.

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