E - Fixed Constructions – 04 – C
Patent
E - Fixed Constructions
04
C
13/1
E04C 5/03 (2006.01) C04B 14/48 (2006.01)
Patent
CA 1280559
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 forced by pressing the steel fiber material between a grooved forming roller and a toothed forcing 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 con- tiguous 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).
519454
Kamei Kazuo
Takata Susumu
Tani Yoshio
Kabushiki Kaisha Kobe Seiko Sho
Kamei Kazuo
Riches Mckenzie & Herbert Llp
Takata Susumu
Tani Yoshio
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