Patent ID: 7758694

Claim:
A fiber reinforced cement composition comprising the following raw materials: not less than 25% by mass and not more than 45% by mass of a hydraulic inorganic material; not less than 50% by mass and not more than 65% by mass of a siliceous material; not less than 5% by mass and not more than 12% by mass of woody reinforcement; not less than 1% by mass and not more than 7% by mass of mica; and not less than 0.25% by mass and not more than 1.5% by mass of a water-soluble resin, wherein the hydraulic inorganic material is a Portland cement, the siliceous material is amorphous material, and is fly ash and/or silica fume and/or blast furnace slag and/or perlite powder and/or glass powder, the woody reinforcement is needle-leaves-tree unbleached kraft pulp and/or needle-leaves-tree bleached kraft pulp and used newspaper, and the water-soluble resin is a polyvinyl alcohol resin.