Experimental Mechanical Characterization of Silica Fume-based No-fines Concrete Reinforced by Steel or Nylon Fibers

Aims: In this study, the mechanical characterization of no-fines concrete solutions is addressed experimentally, with purpose possibly increasing their strength by using silica fume and embedded fibers (steel nylon fibers) as possible efficient reinforcement. Background: Due to competition between developed advanced countries, contemporary construction sector currently experiencing a shortage fundamental building materials. regard, becoming increasingly popular, it has been proven in literature that can offer some advantages an economic lightweight solution compared conventional concrete. However, experiments investigations are still needed investigate potential for its use buildings, given major limitation normal represented limited strength. Objective: The primary objective present study assess samples which steel fibers, partial cement replacement used. For purpose, specimens produced fixed mix proportions 1:6 cement-aggregate (c-a) ratio, various coarse aggregate gradations ((20-10) mm (10-5) mm), w/c ratio (0.42). Methods: carried out on cubes, cylinders prisms solutions. nominal length both types at 20 mm. Steel 1 diameter 0.3 mm, 0.4 0.5 or 0.6 diameters, respectively, taken into account explore effects compressive strength, split tensile flexural Results: presented experimental results showed advantages, such increased compressive, splitting parameters, most examined samples. Nylon particular, proved significantly increase tensile, values, concrete, additional benefits (for arrangements configurations). Conclusion: Overall, compositions mixtures fume-based encourage further optimization these addition capacities, key parameters (such weight, cost, impact microstructure, etc .) will be account.