AN INTRODUCTION TO NONDESTRUCTIVE STRUCTURAL EVALUATION OF PAVEMENTS

This report discusses the major principles which can be used to categorize the various nondestructive testing techniques: static deflections, steady state deflections, impact load resistance, and wave propagation. Due to their simplicity and ease of testing, static deflection devices are widely used. Through use of limiting deflection criteria, static deflections are commonly used to rate existing load capacities and to predict overlay requirements. As steady state deflections correlate well with static measurements, they are often used as a rapid means of obtaining data for use in static based procedures. They have also been used to corrleate directly with allowable loadings determined by conventional thickness design procedures. The impact testing technique offers an extremely rapid technique for dtermining the dynamic load response characteristics of pavement structures. The wave propagation technique offers promise of providing elastic moduli values for all of the pavement layers. New techniques such as laser devices, light emitting diodes, and photography offer a potential for rapid deflection measurements using full-scale moving loads.

• Record URL:
  https://onlinepubs.trb.org/Onlinepubs/trcircular/189/189.pdf
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• Supplemental Notes:
  • Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
• Corporate Authors:

  Transportation Research Board

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  Washington, DC  United States  20001
• Authors:
  • Moore, W M
  • Hanson, D I
  • Hall Jr, J W
• Publication Date: 1978-1

Media Info

• Media Type: Digital/other
• Features: Figures; References; Tables;
• Pagination: 33 p.
• Serial:
  • Transportation Research Circular
  • Issue Number: 189
  • Publisher: Transportation Research Board
  • ISSN: 0097-8515

Subject/Index Terms

• TRT Terms: Bearing capacity; Crash tests; Deflection; Diodes; Dynamic loads; Evaluation; Forecasting; Lasers; Modulus of elasticity; Nondestructive tests; Overlays (Pavements); Pavement layers; Pavement performance; Pavements; Photography; Steady state; Thickness; Wave motion
• Uncontrolled Terms: Pavement thickness
• Old TRIS Terms: Resistance
• Subject Areas: Construction; Geotechnology; Highways; Maintenance and Preservation; Pavements; Research;

Filing Info

• Accession Number: 00170819
• Record Type: Publication
• Files: TRIS, TRB
• Created Date: Mar 29 1978 12:00AM