Using high-performance concrete together with high strength HBR500 rebar for more sustainable buildings
Figure 2: Example of rebar cross section reduction when using HRB500 instead of HRB400, to sustain the same force (F).
To achieve the excellent properties of HRB500, normally a combination of niobium and vanadium is used.
Table 1 illustrates the chemical compositions and resulting mechanical properties as specified by the standard GB/T 1499.2-2018.
Table 1: Chemical composition and mechanical properties specified by the standards GB/T 1499.2-2018 for HRB400 and HRB50