Mechanical and Microstructural Properties of Low Alloy-Treated Steel Used in Reinforced Concrete

The aim of this communication is a comparative study of various types of reinforcements made of mild steel used in reinforced concretes in Senegal and Benin, in order to evaluate their standards. This benchmarking is based on the study of the mechanical and microstructural properties of the various selected products. The results obtained show that the ferrous alloys, used as reinforcing bars in Senegal and Benin, do not respect the performance criteria recommended in the building sector (standard NF has 35-016). In fact, the yield point, the elongation at rupture as well as the geometrical tolerances remain overall lower than the recommended values. The conclusions proposed prospects for heat treatments that should ensure optimization of the properties of the low alloy-treated steel used in the building sector.