FALLING WEIGHT DEFLECTOMETER (FWD) MEASUREMENTS ON GRAVEL ROADS

Since 1979 the Swedish National Road and Traffic Research Institute (VTI) has made FWD measurements on some gravel roads and roads with single surface treatment with graded gravel aggregate (y1g) in the County of Ostergoetland. The object is to contribute to an overlay design method for gravel roads and y1g roads. In this paper some of the results of these measurements are briefly presented. The seasonal variation of the deflection and the variation in the transverse as well as the longitudinal direction of the road are studied. Samples of the material in the road were taken and regression analyses are performed to study the correlation between deflections and pavement properties. Deflections in y1g-sections in good condition and sections showing some deterioration are also compared. (a) (TRRL)

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/8251904803
• Supplemental Notes:
  • Proceedings of a International Symposium on Bearing Capacity of Roads and Airfields, Volume 1, Trondheim, held June 23-25, 1982.
• Corporate Authors:

  Tapir

  Trondheim University, Gloeshaugen
  Trondheim-NTH,   Norway 

  Tapir

  Trondheim University, Gloeshaugen
  Trondheim-NTH,   Norway 
• Authors:
  • Jansson, H
• Conference:
  • Proceedings of a International Symposium on Bearing Capacity of Roads and Airfields, Volume 1, Trondheim, held June 23-25, 1982.
• Publication Date: 1982

Media Info

• Features: Figures; References;
• Pagination: p. 65-68

Subject/Index Terms

• TRT Terms: Bearing capacity; Conferences; Deflection; Deflectographs; Falling weight deflectometers; Gravel roads; Measurement; Overlays (Pavements); Pavement design; Pavements; Regression analysis; Seasons; Strength of materials; Structural strengthening
• Uncontrolled Terms: Low cost roads; Seasonal variations
• Old TRIS Terms: Pavement deflection
• ITRD Terms: 3085: Bearing capacity; 8525: Conference; 5586: Deflection; 6187: Deflectograph; 2986: Low cost road; 6136: Measurement; 3055: Pavement design; 6588: Regression analysis; 3096: Strengthening (pavement)
• Subject Areas: Data and Information Technology; Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 00373182
• Record Type: Publication
• Source Agency: Norwegian Road Research Laboratory
• ISBN: 82-519-0480-3
• Files: ITRD, TRIS
• Created Date: Jun 30 1983 12:00AM