US Patent 7419543 Metal fiber concrete

A mixture of metal fiber concrete based on cement, granular elements and water, comprising metal fibers whose diameter ranges from 1.15 mm to 1.8 mm, wherein the form coefficient thereof is between 35 and 45. The dosing of metal fibers is at least 80 kg/m3. This concrete mixture is particularly adapted to the creation of structural elements such as floor slabs without traditional reinforcements.