Patent ID: 7976626

Claim:
A fiber reinforced cement composition comprising the following raw materials: a hydraulic inorganic material; a siliceous material, a woody reinforcement; fiber reinforced cement particles of a fiber reinforced cement product and/or fiber reinforced cement particles of a fiber reinforced cement intermediate product; mica; and polyvinyl alcohol resin, wherein the hydraulic inorganic material is contained in the amount of 28-45% by mass, the fiber reinforced cement particles of the fiber reinforced cement product has average particle size of 15-50 μm, the fiber reinforced cement particles of the fiber reinforced cement intermediate product are obtained by grinding and/or milling a green sheet which is obtained by forming slurry of raw materials and/or a green mat which is obtained by rolling up on a making roll to have a multi-layer structure and separating from the making roll and/or a press mat which is obtained by pressing a green mat and/or a hardening mat which is hardened by a press mat and/or a cured mat which is obtained by curing the hardening mat and/or a defective article thereof, the fiber reinforced cement particles of the fiber reinforced cement product is contained in the amount of 1-5% by mass and/or the fiber reinforced cement particles of the fiber reinforced cement intermediate product is contained in the amount of 3-10% by mass, and the woody reinforcement comprises needle-leaves-tree unbleached kraft pulp and/or needle-leaves-tree bleached kraft pulp and used newspaper.