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Pavement Deflection Measurement - Dynamic, Phase III, WSU Impulse Index Computer, Section I, (Suitcase)

Description: The development of the Impulse Index as an indicator of pavement condition has been previously described in a report of the College of Engineering Research Division of Washington State University entitled, "Pavement Deflection Measurement--Dynamic--A Feasibility Study, Final Report," June 1970, by Frank W. Brands, PE and John C. Cook, PE.

To implement the convenient acquisition of the Impulse Index, a self-contained hand-carriable "Impulse Index Computer" was to be designed and built. The unit is especially adapted for demonstration purposes and for determining the Impulse Index at specific locations. 

This report describes the Impulse Index Computer which has been built. Some illustrative test results are also included

  • Date Published: August, 1972
  • Publication Number: WA-RD 3.3
  • Last Modified: July 21, 2007
  • Authors: Frank W. Brands, John C. Cook.
  • Originator: Washington State University. College of Engineering. Research Division.
  • # of Pages: 23 p., 520 KB (PDF)
  • Subject: Benkelman beam, Computers, Deflection, Dynaflect, Evaluation, Measuring instruments, Nondestructive tests, Pavement performance, Pavements, Portable equipment.
  • Keywords: Non-destructive tests, pavement condition, pavement evaluation, portable tester.
  • Related Publications: Pavement Deflection Measurement - Dynamic: A Feasibility Study, (WA-RD 3.1).
    Pavement Deflection Measurement - Dynamic, Phase II, (WA-RD 3.2).
    Pavement Deflection Measurement - Dynamic, Phase III, Section II, (Vehicle), (WA-RD 3.4).
    Pavement Deflection Measurement – Dynamic, Phase II, Section II (Vehicle): Final Report, (WA-RD 3.4A).
    Pavement Deflection Measurement - Dynamic Phase IV: Final Report, (WA-RD 3.5).


This abstract was last modified April 29, 2008