EFFECT OF COOLING PARAMETERS ON TENSILE PROPERTIES OF CONCRETE REINFORCING STEEL IN COILS

<p>The production of concrete structural steel using controlled cooling with Tempcore technology enables the production of high-strength steel with improved adhesion to concrete while ensuring homogeneous properties for the construction of buildings, bridges, highways, and other construction facilities in any geographical environment. Concrete reinforcing steel can be produced in the form of bars or coils. The production of concrete reinforcing steel in coils ensures higher productivity, increased output, lower labor costs, and faster application.</p> <p style="text-align: justify;">When producing concrete reinforcing steel in coils, achieving the required tensile properties cannot be accomplished solely by cooling it with water in the Tempcore plant. Additional cooling in separate water boxes is necessary before coiling the steel. By varying the cooling parameters in the Tempcore plant and additional water boxes, it is possible to control and optimize the strength and ductility properties of the concrete reinforcing steel in the coil. In the scope of this paper, the optimal ratio of strength and ductile properties is achieved by applying cooling parameters according to cooling variant II.</p>