Nondestructive Vibratory Testing And Evaluation Procedure For Military Roads And Streets

A procedure for the nondestructive evaluation of military roads and streets is presented. Nondestructive testing is performed with the Road Rater 2008, an electrohydraulic vibrator which measures the load-deflection response of pavements. From the measured load-deflection response, the dynamic stiffness modulus (DSM) is calculated. Correlations of the DSM to the number of allowable passes of an 18,000-lb single-axle dual-wheel load, determined from conventional destructive testing and evaluation procedures, are used with existing analytical relationships to determine the number of allowable passes the pavement can support, and, if required, the overlay thickness. This report also describes the testing equipment, testing techniques, data reduction procedures, and computational methodology used in developing the evaluation procedures for both flexible (AC) and rigid (PCC) highway pavements. An operator's guide describing the day-to-day maintenance and operation of the NODET is presented in Appendix C.