Structural fiber cement building materials
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United States of America Patent
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Jul 3, 2012
Grant Date -
Jun 25, 2009
app pub date -
Dec 20, 2007
filing date -
Dec 20, 2007
priority date (Note) -
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status (Latency Note)
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Abstract
A structural fiber cement sheet containing cementitious matrix and reinforcing cellulose fibers distributed throughout the matrix having a dry density less than 1.25 g/cm3, a thickness less than 0.7500 in, and able to withstand uniform loads of 200 psf or greater according to test method of Section 6.4.2.4 of PS2 and with a deflection of less than 0.067 inches at 60 psf when spaced on a span of 24 inches or less on center.
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Cited Art Landscape
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