Composite roadway fabric

B - Operations – Transporting – 32 – B

Patent

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Details

B32B 5/26 (2006.01) B32B 7/04 (2006.01) B32B 7/12 (2006.01) B32B 17/02 (2006.01) D04H 13/00 (2006.01) E01C 5/12 (2006.01) E01C 11/00 (2006.01) E01D 19/08 (2006.01)

Patent

CA 2345980

A composite roadway fabric including a first layer (10) attached to a second layer (30). The first layer (10) is an open grid of resin impregnated, biaxially oriented, high modulus of elasticity strands. The second layer (30) is substantially water resistant. The composite fabric waterproofs underlying road structures and resists new and reflective cracking in overlying asphalt pavement layers.

L'invention concerne un tissu composite utilisé pour la construction des routes, qui comprend une première couche (10) fixée à une seconde couche (30). La première couche (10) se présente sous la forme d'une grille ouverte de brins d'orientation bi-axiale imprégnés de résine à module élastique élevé. La seconde couche (30) est sensiblement résistante l'eau. Ce tissu composite permet d'assurer l'étanchéité des structures sous-jacentes dans la construction des routes, car il résiste aux fissurations nouvelles et aux fissurations de réflexion qui interviennent dans les couches supérieures d'asphalte de la chaussée.

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