The non-destructive testing technology of steel bars mainly includes several detection methods such as electromagnetic induction detection method, radar detection method and infrared detection method. Among them, the electromagnetic induction detection method is highly praised by quality inspectors because of its simple operation. The article "Application of Electromagnetic Induction Reinforcement Scanner in Field Inspection" mainly introduces the application case of electromagnetic induction scanner, and describes the detection index and operation of the instrument through the application of on-site inspection of steel bar protection layer in highway bridge construction Procedures, including the preparation of materials, determination of testing locations and sampling quantities, determination of testing lines, etc., and analysis and judgment of testing results.
Conclusion: The electromagnetic induction steel bar scanner can determine the position of the steel bar and detect the thickness of the protective layer of the steel bar by moving the probe on the surface of the reinforced concrete structure. It is a very practical non-destructive testing instrument. It can be seen from the detection results of the reinforced concrete protective layer of the bridge structure that it is feasible to apply the steel bar scanner to the actual engineering detection. Thickness detection of steel bar cover is the final random inspection after concealed acceptance, and its detection results provide a basis for the safety assessment of reinforced concrete structures.
