| 摘要 |
Steel fiber for reinforcement of reinforced-concrete articles includes a metal rod with any form of cross section, with bent at right angle in one plane end sections. In the space between the bent end sections, in same plane, it has one U-like bend with lengthmm and widthmm formed in geometric middle of the length of distance between the bent end sections at requirement of fiber orientation in the body of the reinforced-concrete article as longwise to direction of effect of external forces or at distanceof the length from the end section at requirement of orientation of fiber at angle 40-50° to the direction of action of inner forces. |
