Nondestructive Testing for Light Aircraft Pavements. Phase I. Evaluation of Nondestructive Testing Devices

摘要

Methodologies have been developed for nondestructive testing (NDT) and evaluation of air carrier airport pavements. This study, a two-phase program, addresses those pavements that are designed to support aircraft with gross weights of less than 30,000 lb. Phase I, reported herein, is to evaluate commercially available NDT devices with respect to operational characteristics, costs, transportability by cargo aircraft, accuracy, and reproducibility of measurements, and suitability for use in evaluating light aircraft pavements. The equipment evaluated included the Benkelman Beam, Dynaflect, Falling Weight Deflectometer, and Models 400, 510, and 2008 Road Raters. The WES 16-kip vibrator was used as a comparison device. Based on the evaluation parameters, the Dynaflect, Model 2008 Road Rater, and Falling Weight Deflectometer are evaluated applicable for testing light aircraft pavements. (Author)