Fiber reinforced cementitious material

Abstract

A fiber reinforced cementitious material and the fiber used therein are disclosed. The fiber reinforced cementitious material includes a conventional cementitious material and less than 5 pounds per cubic yard of the cementitious material of fibers dispersed therein. The fibers are made of a mixture of a thermoplastic polymer and an organometal compound wherein the metal of the compound is selected from the group consisting of Ti, Si, Zr, Al, and combinations thereof, and the organometal compound comprising less than 10% by weight of said fibers.

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       29 . A structural element used to reinforce a cementitious material comprises: 
 a structural element, and    a mixture of a thermoplastic polymer and an organometal compound wherein the metal of said compound being selected from the group consisting of Ti, Si, Zr, Al, and combinations thereof, said organometal compound comprising less than 10% by weight of said mixture,    wherein said mixture being coated onto said element or comprising said element.    
   
   
       30 . The structural element used to reinforce a cementitious material of  claim 29  wherein said organometal compound comprises less than 5% by weight of said fibers.  
   
   
       31 . The structural element used to reinforce a cementitious material of  claim 29  wherein said organometal compounds being selected from the group consisting of titanates, silanes, zirconates, aluminates, and combinations thereof.  
   
   
       32 . The structural element used to reinforce a cementitious material of  claim 29  wherein said organometal compounds being a silane and another organometal compound being selected from the group consisting of titanates, zirconates, aluminates, and combinations thereof.  
   
   
       33 . The structural element used to reinforce a cementitious material of  claim 29  wherein said organometal compounds being a silane and a titanate.  
   
   
       34 . The structural element used to reinforce a cementitious material of  claim 29  wherein said organometal compounds being a silane and a zirconate.  
   
   
       35 . The structural element used to reinforce a cementitious material of  claim 29  wherein said organometal compounds being a silane.  
   
   
       36 . The structural element used to reinforce a cementitious material of  claim 29  wherein said thermoplastic polymer being selected from the group of polyolefins, polyesters, nylons, acrylics.  
   
   
       37 . The structural element used to reinforce a cementitious material of  claim 29  wherein said structural element being selected from the group of rebar, steel fibers, wire mesh, wire rope, and structural fibers.