Composite fiber cement article with radiation curable component

Details Composite fiber cement article with radiation curable component Composite fiber cement article with radiation curable component

E - Fixed Constructions

04

C

E04C 5/07 (2006.01) B32B 13/02 (2006.01)

Patent

CA 2552143

A composite building article is configured with one or more subsurface interfacial zones provided to improve the durability of the article. Each subsurface interfacial zone is made of a matrix of fiber cement and radiation curable material. The radiation curable material forms an interlocking network with the fiber cement to provide a interfacial zone against ingress of environmental agents that can degrade the article. The number, configuration and distribution of the subsurface interfacial zones can vary dependent on the desired characteristics of the final product. The subsurface interfacial zones also improves the adhesion between exterior coatings and the substrate as the interfacial zones can be integrally formed with the substrate as well as exterior coating layer.

L'invention concerne un article de construction composite conçu avec une ou plusieurs zones interfaciales subsuperficielles destinées à améliorer la durabilité de l'article. Chaque zone interfaciale subsuperficielle est constituée d'une matrice de ciment fibreux et d'un matériau durcissable par rayonnement. Le matériau durcissable par rayonnement forme un réseau enchevêtré avec le ciment fibreux, d'où l'obtention d'une zone interfaciale empêchant l'entrée d'agents environnementaux susceptibles de détériorer l'article. Le nombre, la configuration et la distribution des zones interfaciales subsuperficielles peut varier en fonction des caractéristiques souhaitées du produit final. Les zones interfaciales subsuperficielles permettent également d'améliorer l'adhésion entre des revêtements extérieurs et le substrat étant donné qu'elles peuvent faire corps avec le substrat et une couche de revêtement extérieure.

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