EVALUATION OF THE COX DEFLECTION DEVICES

An evaluation of two dynamic deflection devices development by Cox and Sons, Inc., Colfax, California, is reported. These devices were compared to our presently used deflection devices (Deflectometer and Dynaflect) on roadway structural sections (State Highway and City Streets). Additional testing was performed at the San Jose Municipal Airport to evaluate the equipment on heavily constructed structural sections and obtain deflection correlations with a massive deflection measuring device owned by the U.S. Army Corps of Engineers, the WES device. /Author/

• Supplemental Notes:
  • This study was conducted in cooperation with the U.S. Department of Transportation, Federal Highway Administration.
• Corporate Authors:

  California Department of Transportation

  Transportation Laboratory
  5900 Folsom Boulevard
  Sacramento, CA  United States  95819
• Authors:
  • Roberts, D V
  • Mann, G W
  • Curtis, C A
• Publication Date: 1977-6

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: 61 p.

Subject/Index Terms

• TRT Terms: Consolidations; Deflectometers; Dynaflect; Equipment
• Old TRIS Terms: Dynamic deflection determination
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 00168385
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: FHWA-CA-TL-31507714 Final Rpt., FCP 45D2342
• Contract Numbers: D-5-50 HP&R
• Files: TRIS, STATEDOT
• Created Date: Feb 16 1978 12:00AM