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Nondestructive Testing of Flexible Pavements Field Testing Program Summary

Mario S Hoffman, Marshall R Thompson

Abstract

An extensive nondestructive (NDT) flexible pavement testing program was conducted. Twenty four different pavement sections were subjected to NDT. Conventional granular base and stabilized base material sections were studied. NDT devices used were the Illinois Department of Transportation Road Rater 2000-8, the Benkelman Beam, and the Falling Weight Deflectometer. Subgrade soil and base material characterization and resilient moduli data were developed. A complete data summary is presented in various tables and figures. A procedure for characterizing the pavement surface deflection basin was developed. Correlations between the different devices were developed.

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Key concepts: Falling weight deflectometer, Nondestructive testing, Deflection (physics), Subgrade, Geotechnical engineering, Base course, Engineering, Structural engineering