Patent ID: 9045901
Filing Date: 2015-06-02
Classification: C04B,E04C,Y10T

Abstract:
1. A steel fibre for reinforcing concrete or mortar, said steel fibre having a middle portion and anchorage ends at one or both ends of said middle portion, said middle portion having a maximum load capacity F m and having an elongation at maximum load A g+e , said elongation at maximum load A g+e being at least 4.0%, said steel fibre having an anchorage force in said concrete or said mortar of at least 90% of said maximum load capacity F m , said anchorage force being the maximum load obtained during a pull out test of a steel fibre embedded with one of said anchorage ends in said concrete or said mortar, wherein said anchorage ends are thickened anchorage ends, bent anchorage ends, undulated anchorage ends or combinations thereof, and wherein said middle portion has a length of at least 50 mm.