Structural components for a fire door comprising a core and edge banding and other structural components, the components comprising gypsum, expanded perlite, and cement, and having a density between about 60 and 80 lbs./ft..sup.3. Also, a method by which the structural components are made and a fire door comprising the components.

Componentes estructurales para una puerta cortafuego que abarca una base y las bandas de borde y otros componentes estructurales, los componentes que abarcan el yeso, el perlite ampliado, y el cemento, y teniendo una densidad entre cerca de 60 y 80 lbs./ft..sup.3. También, un método por el cual los componentes estructurales son hechos y una puerta cortafuego que abarca los componentes.

 
Web www.patentalert.com

< Recovery of cement kiln dust through precipitation of calcium sulfate using sulfuric acid solution

< Hydrophobicizing agents for hydrophobicizing gypsum-plaster-bound construction materials

> Process for removing sulfate from an aqueous salt solution

> Rapid setting cementitious composition

~ 00094