Fiber-reinforced cement molded product, and process for its production
AssigneeAsahi Glass Company, Limited
InventorsTetsuro Shirakawa, Seiji Inoue
Life of this patent
Estimating the term…
Abstract
A molded product which has a high strength and which is excellent in surface smoothness and freezing damage resistance. It comprises a fiber-reinforced cement molded OK product which has a bulk specific gravity of from 0.9 to 1.2, and which comprises, by mass, from 2 to 15% of hollow particles, from 1 to 40% of an inorganic admixture having pores which are open to the surface, from 5 to 70% in total of cement and/or lime, from 0 to 50% of slag, from 0 to 50% of gypsum, from 20 to 60% of a quartzite powder, from 0 to 20% of micro silica, from 0 to 30% of an inorganic aggregate other than the above components and from 2 to 30% of cellulose fibers.
Claims15
A fiber-reinforced cement molded product comprising, by mass, from 2 to 15% of hollow particles and from 1 to 40% of an inorganic admixture having pores which are open to the surface, and which fiber-reinforced cement molded product has a bulk specific gravity of from 0.9 to 1.2.
A fiber-reinforced cement molded product comprising, by mass, from 2 to 15% of hollow particles and from 1 to 40% of an inorganic admixture having pores which are open to the surface, and which fiber-reinforced cement molded product has a bulk specific gravity of from 0.9 to 1.2,
- wherein the hollow particles are inorganic hollow particles having particle diameters of from 20 to 1000 μm, and the inorganic admixture having pores which are open to the surface is a perlite ground powder and/or a cement product ground powder having a bulk specific gravity of from 0.1 to 0.5.
Dependencies are inferred from the claim text.