Water and fire resistent building material

Details Water and fire resistent building material Water and fire resistent building material

C - Chemistry, Metallurgy

04

B

261/68

C04B 9/02 (2006.01) C04B 28/30 (2006.01) C04B 28/32 (2006.01)

Patent

CA 1279334

ABSTRACT The application concerns a water and fire resistant building material consisting of a layered, shaped and hardened composition of one or more absorbant components, magnesia cement, chemically active fumed silica, alkali silicate, one or several inorganic fillers, one or several lignin sulphonates, eventually ethyl silicate, whereby the final product is built up of a two binder system, one consisting of fumed silica, alkali silicate and possibly magnesium oxide and the other consisting of magnesia cement and a lignin sulphonate salt. The application also concerns the method of producing the product. The procedure is characterized by forming a dual layered binder system and by having a very short press time.

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