Ribbed iron rebar is a reinforced steel or polymer fiber used in concrete to compensate for its low tensile strength (concrete). Steel or polymer fiber used for this purpose in reinforced concrete structures is in the form of wire or rebar. In certain cases, structural steel such as display \ displaystyle I} I-shaped profiles, studs or cans are also used to reinforce concrete. The tread in the rebar is in order to engage the steel in the concrete. For this purpose, the tread in the rebar is created in a spiral and with standard depth so that the level of engagement of the rebar and concrete can be increased.pay attention to this issue.