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REPORT
This report is an archived publication and may contain dated technical, contact, and link information
Publication Number: FHWA-HRT-07-040
Date: October 2011

 

Falling Weight Deflectometer Calibration Center and Operational Improvements: Redevelopment of The Calibration Protocol and Equipment

REFERENCES

  1. AASHTO R32-09. (2010). "Calibrating the Load Cell and Deflection Sensors for a Falling Weight Deflectometer," Standard Specifications for Transportation Materials and Methods of Sampling and Testing, Part 1B: Specifications, Association of State Highway and Transportation Officials, Washington, DC.

  2. Irwin, L.H., Yang, W.S., and Stubstad, R.N. (1988). "Deflection Reading Accuracy and Layer Thickness Accuracy in Backcalculation of Pavement Layer Moduli," Nondestructive Testing of Pavements and Backcalculation of Moduli, American Society for Testing and Materials, Philadelphia, PA.

  3. Strategic Highway Research Program. (1994). SHRP/LTPP FWD Calibration Protocol, Transportation Research Board, Washington, DC.

  4. Orr, D.P. and Wallace, J.M.S. (2002) "Falling Weight Deflectometer Calibration: Looking Back to the Future," Pavement Evaluation, Virginia Tech University, Roanoke, VA.

  5. FHWA. (2010). Resolution on Falling Weight Deflectometer (FWD) Calibration Centers, Federal Highway Administration, Washington, DC. Obtained from http://www. pooledfund.org/documents/TPF-5_039/resolution.pdf. Site last accessed October 21, 2010.

  6. Cornell Local Roads Program. (1994). Reference Calibration of Falling Weight Deflectometers: Software Users Guide and Instruction Manual, FWDREFCL. Version 3.72, Cornell Local Roads Program, Ithaca, NY.

  7. AASHTO. (1998). Pavement Deflection Data Exchange: Technical Data Guide, Version 1.0, American Association of State Highway and Transportation Officials, Washington, DC.

  8. Cornell Local Roads Program. (2010). Software Users Manual: PDDXconvert, CLRP Report No. 2010-05, Cornell Local Roads Program, Ithaca, NY.

  9. AASHTO R32-03. (2006). "Calibrating the Load Cell and Deflection Sensors for a Falling Weight Deflectometer," Standard Specifications for Transportation Materials and Methods of Sampling and Testing, Part 1B: Specifications, Association of State Highway and Transportation Officials, Washington, DC.

  10. AASHTO R33-03. (2010). "Calibrating the Reference Load Cell Used for Reference Calibrations for Falling Weight Deflectometer," Standard Specifications for Transportation Materials and Methods of Sampling and Testing, Part 1B: Specifications, Association of State Highway and Transportation Officials, Washington, DC.

  11. Cornell Local Roads Program. (2010). Software Users Manual: WinFWDCal, CLRP Report No. 2010-06, Cornell Local Roads Program, Ithaca, NY.

  12. National Geodetic Survey. (2009). Surface Gravity Prediction in the Conterminous USA, National Geodetic Survey, Silver Spring, MD. Obtained from: http://www.ngs.noaa.gov/ TOOLS/Gravity/gravcon.html. Site last accessed October 21, 2010.

  13. Dynatest® International A/S. (2010). The Dynatest Group of Companies, Glostrup, Denmark. Obtained from http://www.Dynatest.com . Site last accessed October 21, 2010.

  14. Engineering and Research International, Inc. (2010). KUAB Falling Weight Deflectometer, Engineering and Research International, Inc., Savoy, IL. Obtained from: http://www.erikuab.com/kuab.htm . Site last accessed October 21, 2010.

  15. JILS. (2009). The JILS, Foundation Mechanics, Falling Weight Deflectometer, JILS, El Segundo, CA. Obtained from: http://www.jilsfwd.com. Site last accessed October 21, 2010.

  16. Minitab. (2005). Minitab Statistical Software, Release 14, Minitab, Inc., State College, PA.

  17. ASTM E177-06b. (2006). "Standard Practice for Use of Terms Precision and Bias in ASTM Test Methods," Annual Book of ASTM Standards, 14.02, ASTM International, West Conshohocken, PA.

  18. Cornell Local Roads Program. (2010). Software Users Manual: RefLCCal, CLRP Report No. 2010-07, Cornell Local Roads Program, Ithaca, NY.

  19. ASTM E-74-06. (2005). "Standard Practice of Calibration of Force-Measuring Instruments for Verifying the Force Indication of Testing Machines," Annual Book of ASTM Standards, Volume 03.01, ASTM International, West Conshohocken, PA.

The Federal Highway Administration (FHWA) is a part of the U.S. Department of Transportation and is headquartered in Washington, D.C., with field offices across the United States. is a major agency of the U.S. Department of Transportation (DOT).
The Federal Highway Administration (FHWA) is a part of the U.S. Department of Transportation and is headquartered in Washington, D.C., with field offices across the United States. is a major agency of the U.S. Department of Transportation (DOT). Provide leadership and technology for the delivery of long life pavements that meet our customers needs and are safe, cost effective, and can be effectively maintained. Federal Highway Administration's (FHWA) R&T Web site portal, which provides access to or information about the Agency’s R&T program, projects, partnerships, publications, and results.
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