Non-combustible reinforced cementitious lightweight panels...

E - Fixed Constructions – 04 – B

Patent

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E04B 1/00 (2006.01) B32B 5/16 (2006.01) B32B 13/02 (2006.01) B32B 18/00 (2006.01) D04H 13/00 (2006.01)

Patent

CA 2593435

A fire resistive assembly including metal framing members, for example, C- joists, U-joists, open web joists, HAMBRO or other metal frame systems that support a reinforced, lightweight, dimensionally stable SCP panel. The assembly is non-combustible, water durable, mold and rot resistant, termite resistant and is capable of resisting shear loads equal to or exceeding shear loads provided by plywood or oriented strand board panels. The panels employ one or more layers of a continuous phase resulting from the curing of an aqueous mixture of inorganic binder, for example, calcium sulfate alpha hemihydrate, hydraulic cement, an active pozzolan and lime. The continuous phase is reinforced with glass fibers and contains lightweight filler particles, for example, ceramic microspheres.

L'invention porte sur une structure résistant au feu comprenant des cadres métalliques par exemple des types C-joists, U-joists, poutrelles triangulées, HAMBRO ou tout autre système de cadres métalliques servant de support à des panneaux de fibrociment légers dimensionnement stables. Une telle structure est non combustible, durable en présence d'eau, résistante aux moisissures, à la pourriture et aux termites et peut encaisser des forces de cisaillement dépassant celles des contre-plaqués ou des panneaux de particules orientées. Les panneaux comportent une ou plusieurs couches d'une phase continue résultant du durcissement d'un mélange aqueux d'un liant minéral, par exemple du plâtre de Paris, du ciment hydraulique, une pouzzolane active et de la chaux. Ladite phase continue est renforcée par des fibres de verre et contient une charge de particules légères telles que par exemple des microsphères céramiques.

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