Concrete reinforcing steel fibers and a method of manufacturing

Details Concrete reinforcing steel fibers and a method of manufacturing Concrete reinforcing steel fibers and a method of manufacturing

1986-09-26

1989-02-14

Zimmerman, John J.

Stock material or miscellaneous articles

All metal or with adjacent metals

Width or thickness variation or marginal cuts repeating...

428600, 106 99, E04C 503, C04B 1448

Patent

active

048045853

ABSTRACT:
A concrete reinforcing steel fiber has an alternate arrangement of basic portions corresponding to the body of the steel fiber material, and section-shaped portions formed by pressing the steel fiber material between a grooved forming roller and a toothed forming roller. Each section-shaped portion has a flat upper surface, lateral projections and a round bottom. The pressure bearing area b of the section-shaped portion, namely, the sum of the cross-sectional area of the lateral projections and the area of the end surface of the basic portion contiguous with the section-shaped portion, is in the range of 0.2A to 0.5A (A=cross-sectional area of the basic portion). The total pressure bearing area B of the steel fiber is in the range of 3A and 8A, and also in the range of 0.02T and 0.08T (T=tensile strength of the steel fiber).

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