Metal fiber concrete compositions for molding concrete elements, elements obtained and curing process
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United States of America Patent
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Apr 2, 1996
Grant Date -
N/A
app pub date -
Jun 30, 1994
filing date -
Jul 1, 1993
priority date (Note) -
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status (Latency Note)
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Abstract
A metal fiber concrete composition for molding a concrete element, the composition being essentially constituted by a Portland cement, granular elements, fine elements for pozzolan reaction, metal fibers, a dispersing agent, optionally other additives, and water. The preponderant granular elements have a maximum grain size D of not more than 800 micrometers. The preponderant metal fibers have individual lengths 1 lying in the range 4 mm to 20 mm. The ratio R of the mean length L of the fibers divided by said maximum size D of the granular elements is not less than 10. The amount of preponderant metal fibers is such that the volume of preponderant metal fibers lies in the range 1.0% to 4% of the volume of the concrete after setting.
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