A set of studies has been carried out to determine the controlled parameters of the adhesion strength of class A550 reinforcement to concrete. More than 100 tests have been done on the basis of which an array of empirical data is formed, necessary for comparative analysis and determination of calculated values of bearing capacity and operational suitability of reinforcing bars of class A550. The values of the relative crushing area of the transverse ribs of the reinforcement for Class A 550 meet regulatory requirements is as follows: for rods with a diameter of 8 mm, it is above the strength of the reinforcement; for rods with a diameter of 10 mm, it is close to the strength of the reinforcement; and for rods with a diameter of 12 mm, it is below the strength of the reinforcement, with an anchoring length equal to 6 times the diameter of the reinforcement.