Dramix® - Reinforcing the future - Bekaert

Pull-Out Test of Dramix ® 3D, 4D and 5DPull-Out tension [N/mm²]250020001500100050000,000,50Steel fibre concrete strengthThe ductility and post-crackstrength of steel fibre concreteare determined by manydifferent aspects, includingconcrete composition, fibrelength and aspect l/d ratio.A major driver of performance isalso a balanced combination ofanchorage design, wire strength,and wire ductility.All Dramix ® steel fibres areengineered to provide optimalperformance for differentapplications—3D for commonusage, 4D for durable andliquid-tight surfaces, and 5D forthe most demanding structuralapplications. The latter achievesperformance levels which untilnow could only be provided bytraditional reinforcement.ultra high tensile 5Dhigh tensile 4Dnormal tensile 3D1,00 1,50 2,00 2,50Displacement [mm]5DDramix®3DDramix®4DDramix® Dramix®4DDramix®The pull-out test clearly illustrates the different workings of the three Dramix® fibre types. The hook in the 3D and 4Dseries slowly deforms during the pull-out process, while the 5D hook stays firmly rooted, but the wire is elongated tocreate ductility in the concrete.Fr/Fl (%)140%120%100%80%60%40%20%0%0,003,003,50Steel fibre concrete strength 3D-4D-5D1,002,00Displacement [mm]3,004,00The different Dramix ® series have been engineered to offer optimalconcrete strength for different applications. The performance level of the5D series was only thought possible with traditional reinforcementmethods.5DDramix®3DDramix®Dramix ®19n