GYPSUM COMPOSITES USED IN FIRE RESISTANT BUILDING COMPONENTS

摘要

A composite product includes gypsum in an amount of 60 to 90% by weight fibers in an amount of 1.5 to 26% by weight substantially homogeneously distributed through the composite and a rheology modifying agent in an amount of 0.5 to 6% by weight. The composite is caused or allowed to cure to form a cured composite. The cured composite is a fire resistant component used in a fire rated door core a fire rated door or a fire rated building panel. The fire resistant component may include a building panel a door panel a door core a door rail a door stile a door lock block a door border or a door insert.