Textile lattice for reinforcing bitumen-bonded layers

E - Fixed Constructions – 01 – C

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E01C 11/16 (2006.01)

Patent

CA 2274798

The invention relates to a wide-mesh textile netting for reinforcing layers connected by bitumen, in particular road surfaces, which is coated with an adhesive with an affinity for bitumen and consists substantially of two sets of parallel load-bearing threads (1, 2). One of the sets of threads (1) runs in the lengthways direction of the netting and the other set of threads (2) perpendicular to the lengthways direction of the netting, whereby the threads (1, 2) are made of glass fibres or synthetic fibres such as polymer fibres or polycondensation fibres. To develop a reinforcement netting for layers connected by bitumen which adheres more effectively than known netting to a prepared level surface and which does not form a disruptive separating layer between the layers, the interlacing threads (1, 2) are stitched by a Rachel technique onto a thin fleece (3), whereby the connecting Rachel threads (5) enclose the threads (1) running lengthways along the netting and fixe the perpendicular threads (2).

L'invention concerne un treillis textile à larges mailles pour renforcer des couches liées par du bitume, notamment des revêtements routiers. Ce treillis est revêtu d'un adhésif présentant une affinité pour le bitume et est constitué essentiellement de deux ensembles de fils (1, 2) porteurs parallèles. L'un des ensembles de fils (1) s'étend dans le sens longitudinal du treillis et l'autre ensemble de fils (2) s'étend perpendiculairement au sens longitudinal du treillis, et les fils (1, 2) sont constitués de fibres de verre ou de fibres synthétiques telles que des fibres polymères ou des fibres de polycondensation. Dans le but de mettre au point un treillis d'armature destiné à des couches liées par du bitume, qui adhère mieux que les treillis connus à une plate-forme de chaussée préparée et qui ne forme pas de séparation gênante entre les couches, les fils (1, 2) entrecroisés sont cousus selon un procédé Rachel sur un non-tissé (3) fin, les fils de liage Rachel (5) entourant les fils longitudinaux (1) du treillis et assujettissant les fils transversaux (2).

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