Macro recycled plastic fibre offers significant environmental benefits over virgin plastic fibre and steel
reinforcement. However, as there is limited research on performance of recycled plastic fibre in concrete,
it has not yet been widely adopted by the construction industries. In this research, post-cracking
performance of different kinds of recycled polypropylene fibres from industrial waste was studied and
compared with that of virgin polypropylene fibre in concrete. The diamond-indent recycled fibres
showed a good balance of tensile strength, Young’s modulus and concrete bonding, thus producing
brilliant post-cracking performance. This research proved the feasibility of using recycled fibres as
reinforcement in concrete footpaths.