Masterfibre HP 0730 

The hooked end is designed to provide anchorage in a non-rigid way. The fibre cross section is slightly changed to allow for pull through at high loads, reducing brittle failure, at the same time maximizing high energy absorption.

For optimum performance fibre deformation has to increase as concrete strength decreases to maintain balance between the wire strength and its anchorage. The double anchorage, a splayed and hooked end for this fibre, optimizes performance in concrete in the strength range  30-70MPa.