Threaded reinforcing bar

Abstract

A threaded reinforcing bar for use in concrete construction, wherein the reinforcing bar has a body having an external thread along its length, wherein a thread profile of the external thread is such that the thread covers greater than 30% of the bar. A threaded reinforcing bar for use in concrete construction, wherein the reinforcing bar has a body having an external thread along its length, wherein a thread profile of the external thread is such that the thread width is greater than or equal to a threshold proportion of a pitch of the thread. In one example, the threshold proportion is 0.25.

1 . A threaded reinforcing bar for use in concrete construction, the threaded reinforcing bar comprising:
 a body having an external thread along its length, wherein a thread profile of the external thread is such that the external thread covers greater than 30% of the threaded reinforcing bar.   
     
     
         2 . The threaded reinforcing bar of  claim 1 , wherein the external thread covers greater than 30% of the threaded reinforcing bar for an entire length of the threaded reinforcing bar. 
     
     
         3 . The threaded reinforcing bar of  claim 1 , wherein the external thread covers greater than 30% of a total surface area of the threaded reinforcing bar. 
     
     
         4 . The threaded reinforcing bar of  claim 1 , wherein the external thread covers greater than 40% of a total surface area of the threaded reinforcing bar. 
     
     
         5 . The threaded reinforcing bar of  claim 1 , wherein the external thread covers greater than 45% of a total surface area of the threaded reinforcing bar. 
     
     
         6 . The threaded reinforcing bar of  claim 1 , wherein the external thread covers greater than 48% of a total surface area of the threaded reinforcing bar. 
     
     
         7 . A threaded reinforcing bar for use in concrete construction, the threaded reinforcing bar comprising:
 a body having an external thread along its length, wherein a thread profile of the external thread is such that the thread width is greater than or equal to a threshold proportion of a pitch of the external thread.   
     
     
         8 . The threaded reinforcing bar of  claim 7 , wherein the threshold proportion is 0.25. 
     
     
         9 . The threaded reinforcing bar of  claim 8 , wherein the bar is 40 mm in diameter. 
     
     
         10 . The threaded reinforcing bar of  claim 7 , wherein the bar is 40 mm in diameter.