Rebars are long profiles with a solid cross-section made of steel and have various sizes. Rebars are produced both plain and ribbed. Construction rebars are generally of grooved type, which is to prevent the movement of rebar in concrete due to sudden pressures during floods, earthquakes or other such cases. In Iran, the types of rebars of different factories are divided into several groups of rebar A1, rebar A2, rebar A3 and rebar A4 based on the Russian standard