20150175887 | FIRE CORE COMPOSITIONS AND METHODS - The present invention describes an improved building material composition, useful for example as a fire door core and the improved methods of making this composition. More particularly, the building material of the present invention is prepared from a foam aggregate and an aqueous mixture of a cementitious composition that includes at least one of the following components: a cement, an accelerant, or a binder, which composition can be molded and shaped into a fire door core. | 06-25-2015 |