Fiber-reinforced cement molded product, and process for its production
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United States of America Patent
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Aug 12, 2003
Grant Date -
May 23, 2002
app pub date -
Aug 10, 2001
filing date -
Aug 11, 2000
priority date (Note) -
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status (Latency Note)
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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.
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