A technical article examining the performance of twisted steel fibre (TSF) reinforcement cited EN 14651 beam test results carried out at a laboratory accredited under NAH-1-1902/2022. The published load–CMOD curve demonstrated stable post-crack residual strength at wide crack openings — a key parameter in the structural design of fibre-reinforced concrete.
EN 14651 testing provides quantified residual flexural tensile strengths (fR1–fR4), forming the basis for European design, specification, and product validation. Independent, accredited verification is essential when introducing innovative reinforcement systems to the EU market.
The publication highlights the role of reliable, standards-compliant testing in supporting structural optimisation, reduced material usage, and lower embodied carbon solutions in slabs, precast elements, and tunnel linings.