STEEL FIBRE FOR REINFORCING CONCRETE OR MORTAR HAVING AN ANCHORAGE END WITH AT LEAST THREE STRAIGHT SECTIONS

摘要

The invention relates to a steel fibre for reinforcing concrete or mortar. The steel fibre comprises a middle portion and an anchorage end at one or both ends of the middle portion. The middle portion has a main axis. The anchorage end comprises at least a first straight section, a first bent section, a second straight section, a second bent section and a third straight section. The first straight section and the third straight section are bending away from the main axis of the middle portion in the same direction. The second straight section is substantially parallel with the main axis of said middle portion. The invention further relates to a concrete structure comprising steel fibres according to the present invention and to the use of steel fibres for load carrying structures of concrete.