Cement-based fire door core

Details Cement-based fire door core Cement-based fire door core

C - Chemistry, Metallurgy

04

B

C04B 28/04 (2006.01) C04B 24/00 (2006.01) C09K 21/02 (2006.01) E06B 5/16 (2006.01)

Patent

CA 2645402

The present invention describes an improved building material composition, useful for example as a fire door core. The building material of the present invention is prepared by compressing an aqueous mixture of expanded perlite and a fast setting, cementitious composition consisting essentially of a hydraulic cement, preferably Portland cement, and a pozzolan additive selected from the group consisting of metakaolin, VCAS and mixtures thereof, and preferably also includes an organic binder and a fibrous reinforcement.

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