Structural reinforcement member and method of utilizing the...

Details Structural reinforcement member and method of utilizing the... Structural reinforcement member and method of utilizing the...

E - Fixed Constructions

01

C

E01C 11/16 (2006.01) B29B 15/12 (2006.01) B29C 70/22 (2006.01) E04C 5/07 (2006.01) B29C 53/28 (2006.01)

Patent

CA 2236735

A structural member for reinforcement of asphalt and concrete roadways and other products, and which comprises a gridwork (10) of warp strands (13) and weft strands (15) which are disposed at right angles to each other and so as to define an open structure. In one embodiment, the gridwork is impregnated with a thermosettable B-stage resin so as to interlock the strands at their crossover points and maintain the gridwork in a semi-flexible state, and after being applied to the product to be reinforced, the resin is heated to convert the same into a fully cured composite to thereby rigidize the gridwork and reinforce the product. In cases where the product to be reinforced is heated, such as asphalt paving, the heat of the product provides the heat necessary to fully cure the resin in situ. In another embodiment, the resin is fully cured to rigidize the gridwork prior to its being applied to the structure to be reinforced. A method of producing the resin impregnated gridwork is also disclosed.

Elément structurel permettant de renforcer les chaussées en asphalte ou en béton et d'autres produits, et comprenant une grille (10) constituée de torons de chaîne (13) et de torons de trame (15) disposés à angle droit les uns par rapport aux autres de façon à définir une structure ouverte. Dans un des modes de réalisation, la grille est imprégnée d'une résine thermofusible à l'état B qui bloque les torons entre eux au niveau de leurs points d'intersection et maintient la grille dans un état semi-flexible. Après avoir appliqué la résine sur le produit à renforcer, on la chauffe afin de la transformer en composite totalement durci, qui rigidifie la grille et renforce le produit. Dans les cas où l'on chauffe le produit à renforcer, un pavement d'asphalte par exemple, la chaleur de l'article fournit la chaleur nécessaire pour finir de cuire la résine in situ. Dans un autre mode de réalisation, on cuit totalement la résine de façon à rigidifier la grille avant d'appliquer celle-ci sur la structure à renforcer. L'invention concerne également un procédé de fabrication de la grille imprégnée de résine.

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