Multi-leg fiber reinforced concrete

Abstract

The multi-leg fiber reinforced concrete is concrete in which fibers have been embedded to prevent the concrete from being fractured due to cracks developing therein. Each fiber has multiple legs, defining two and three dimensional structures. At least one fiber is embedded in a volume of concrete, where the at least one fiber has at least first and second legs respectively extending along first and second directions. The first and second directions are angularly oriented with respect to one another between 45° and 135°, with each of the first and second legs having a free end and a fixed end. Each free end has a substantially Z-shaped contour. The fixed ends of the first and second legs may be joined together to define a two-dimensional fiber structure. The at least one fiber may be partially coated with a polymeric material, such as polypropylene.

1 . A multi-leg fiber reinforced concrete, comprising:
 a volume of concrete; and   at least one fiber embedded in the volume of concrete, the at least one fiber having first and second legs, each of the legs having a fixed end and a free end, the fixed ends of the first and second legs being directly joined together defining a vertex of an angle measuring between 45° and 135°, each of the free ends terminating in a hook having a 45° bend.   
     
     
         2 - 4 . (canceled) 
     
     
         5 . The multi-leg fiber reinforced concrete as recited in  claim 1 , wherein the at least one fiber comprises braided fiber. 
     
     
         6 - 15 . (canceled)