Inorganic composition and products and manufacturing process
The problems to be solved by the invention are to provide an inorganic composition for obtaining an inorganic product which is excellent in physical property such as installing property, and which is economical price, as well as a process for manufacturing the product. Namely, the present invention provides, as a means to solve the conventional problems, an inorganic composition comprising the following raw materials: a hydraulic inorganic material, a siliceous material and a woody reinforcement, wherein the hydraulic inorganic material is a cementitious material, the siliceous material is a mixture of a rough particle size of siliceous material and a finely particle size of siliceous material, and the woody reinforcement is a wood powder and a pulp. The effects of the present invention, it is possible to obtain an inorganic product which is excellent in physical property such as installing property, and which is economical price.
1. An inorganic composition comprising the following raw materials:
not less than 25% by mass and not more than 45% by mass of Portland cement;
not less than 25% by mass and not more than 45% by mass of a siliceous material; and
not less than 7% by mass and not more than 15% by mass of a woody reinforcement, wherein
the siliceous material is a mixture of a siliceous material having not less than 3000 cm 2 /g and not more than 4000 cm 2 /g of a specific surface area of Blaine and a siliceous material having not less than 7000 cm 2 /g and not more than 11000 cm 2 /g of a specific surface area of Blaine,
the amount of the siliceous material having not less than 7000 cm 2 /g and not more than 11000 cm 2 /g of a specific surface area of Blaine is not less than 20% by mass and not more than 50% by mass of the whole siliceous material,
the woody reinforcement comprises a wood powder and a pulp, and
the amount of the wood powder is not less than 10% by mass and not more than 60% by mass of the whole woody reinforcement.
2. The inorganic composition according to claim 1 ,
wherein an average fiber length of the pulp is not less than 0.3 mm and not more than 1.5 mm.
3. The inorganic composition according to claim 1 , further comprising a thickening agent and a water reducing admixture.
4. An inorganic product manufactured from the inorganic composition according to claim 1 .
5. An inorganic product manufactured from the inorganic composition according to claim 2 .
6. The inorganic composition according to claim 2 , wherein the wood powder can pass through a 16 mesh sieve.
7. An inorganic product manufactured from the inorganic composition according to claim 3 .
8. An inorganic product manufactured from the inorganic composition according to claim 6 .
9. A process for manufacturing an inorganic product comprising the steps of:
mixing in water a raw material composition comprising as main raw materials:
not less than 25% by mass and not more than 45% by mass of Portland cement;
not less than 25% by mass and not more than 45% by mass of a siliceous material; and
not less than 7% by mass and not more than 15% by mass of a woody reinforcement, wherein
the siliceous material is a mixture of a siliceous material having not less than 3000 cm 2 /g and not more than 4000 cm 2 /g of a specific surface area of Blaine and a siliceous material having not less than 7000 cm 2 /g and not more than 11000 cm 2 /g of a specific surface area of Blaine,
the amount of the siliceous material having not less than 7000 cm 2 /g and not more than 11000 cm 2 /g of a specific surface area of Blaine is not less than 20% by mass and not more than 50% by mass of the whole siliceous material,
the woody reinforcement comprises a wood powder and a pulp, and
the amount of the wood powder is not less than 10% by mass and not more than 60% by mass of the whole woody reinforcement;
extruding the mixture of materials; and
hardening and curing the extruded material to obtain a inorganic product.
10. The process for manufacturing an inorganic product according to claim 9 , wherein an average fiber length of the pulp is not less than 0.3 mm and not more than 1.5 mm.
11. The process for manufacturing an inorganic product according to claim 10 , wherein the wood powder can pass through a 16 mesh sieve.
12. The process for manufacturing an inorganic product according to claim 9 , wherein the raw material composition further comprises a thickening agent and a water reducing admixture.