C - Chemistry – Metallurgy – 04 – B
Patent
C - Chemistry, Metallurgy
04
B
261/59
C04B 14/04 (2006.01) C04B 28/02 (2006.01)
Patent
CA 2006793
Abstract of the Disclosure A first non-asbestos inorganic hardened composition comprising a mixture of 100 parts by weight of cement, 5 to 60 parts by weight of quartzite powder, 5 to 60 parts by weight of wollastonite, and 0.1 to 10 parts by weight of fiber, mixed with an appropriate amount of water, molded, and hardened, and a second non-asbestos inorganic hardened composition based on the first composition, further comprising: (A) 0.2 to 8 parts by weight of an alkali metal chloride or an alkaline earth metal chloride, and/or (B) 0.1 to 6 parts by weight of a water reducing agent and 0.1 to 4 parts by weight of a thickener; and a method for producing a non-asbestos inorganic hardened composition comprising adding an appropriate amount of water to the above composition, and subjecting the mixture to an extrusion process, a roll pressing process, and a flat pressing process followed by hardening and curing. These non-asbestos inorganic hardened compositions can be used to good advantage as architectural materials which are required to have weatherability and durability without using asbestos. Due to their good material characteristics, the production method thereof is simple and efficient and can stably produce the hardened compositions.
Akimoto Yukio
Ito Toshiaki
Kusunoki Kokyo
Morohashi Kenji
Taguchi Kazuto
Ask Corporation
Swabey Ogilvy Renault
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