Evaluation of the Performance of Ultrasonic Equipment for Pavement Thickness Measurement

摘要

This study, is a laboratory and field evaluation of the performance of ultrasonic equipment now commercially available to measure pavement thickness. Field procedures were developed for correlation between pavement thickness determined from sample cores and from ultrasonic measurements. Statistical analysis were used. Core sampling and sonic techniques were compared with respect to production rates in obtaining sample measurements, personnel and equipment required and the relative size of the area averaged by each method to obtain a single thickness determination. (BPR abstract)