Application of X-ray digital imaging technology in quality inspection ofprestressed cable grouting

The compactness of prestressed cable duct is the key point of quality control of prestressed structure engineering. The method of using X-ray digital imaging (DR) to detect the compactness of prestressed cable duct is studied. The influence of different working conditions on the digital imaging results is analyzed. The local damage method is used to verify the detection results, indicating the reliability of the method.