ASTM E3013/E3013M-17 (R2022) PDF Download

The ASTM E3013/E3013M-17 (R2022) standard provides guidelines for assessing the alignment of dowel bars in concrete pavement using magnetic pulse induction (MPI) technology. MPI devices are used to induce a weak-pulsed magnetic field that generates eddy currents in metal objects, such as dowel bars. This standard specifies the equipment, field procedures, and interpretation methods necessary for accurately evaluating dowel bar alignment.

The MPI equipment required for this test method includes a scanning device that generates the magnetic field and collects the electrical signal, an orientation system (such as a rail system) to ensure consistent scanning, a field data collection device for storing the signal data, and analysis software for calculating the positions of the dowel bars and generating reports. The field procedures outline the steps for conducting reliable and accurate scans, including the removal of any metal items near the joints being tested. The procedure also covers the collection of data, review of results, and assessment of test success.

The interpretation methods described in the standard guide users on how to analyze the collected data and address any interferences or anomalies that may impact the accuracy of the results. The standard also specifies the minimum content that should be included in the test report to ensure meaningful and informative test information.