MEASUREMENT OF THE BEARING CAPACITY OF A ROAD CONSTRUCTION DYNAMIC LOADING, WITH A FALLING WEIGHT DEFLECTOMETER

A FALLING WEIGHT DEFLECTOMETER, BASED ON A SIMILAR DESIGN DEVELOPED IN FRANCE, HAS BEEN PUT ON THE MARKET FOR MEASURING DYNAMIC LOAD BEARING CAPACITY ON ROADS. UNLIKE THE BENKELMAN BEAM AND PLATE BEARING APPARATUS, THE FALLING WEIGHT DEFLECTOMETER SHOWS THE EFFECT OF PRESSURE DISTRIBUTION THROUGH THE ASPHALT LAYERS. THE DEVICE WHICH DISTRIBUTION THROUGH THE ASPHALT LAYERS. THE DEVICE, WHICH IS LIGHT ENOUGH TO BE PULLED BY A PASSENGER AUTO, HAS A 150-KG WEIGHT WHOSE DROPPING DISTANCE CAN BE VARIED TO ALTER THE DYNAMIC LOAD FROM 0 TO 5 TONS. LOAD DURATION FOR ALL IMPACT LOADS IS 25 MS.. THE MODE OF OPERATION IS EXPLAINED, AND PERFORMANCE CHARACTERISTICS ARE DESCRIBED. THE COST OF THE DEVICE IS 2,700 U.S. DOLLARS WITH MECHANICAL REGISTRATION OF DEFLECTION AND $3,100 WITH TRANSDUCER REGISTRATION.

• Supplemental Notes:
  • 11 Pp, 4 FiG, 2 PHOT
• Corporate Authors:

  A/s Phonix /Denmark

  ,    
• Publication Date: 1970

Subject/Index Terms

• TRT Terms: Bearing capacity; Deflection; Deflectometers; Dynamic loads; Falling weight deflectometers; Highways; Pavements; Pressure; Roads
• Uncontrolled Terms: Pressure distribution
• Old TRIS Terms: Highway pavement; Pavement deflection
• Subject Areas: Highways; Pavements;

Filing Info

• Accession Number: 00207206
• Record Type: Publication
• Files: TRIS
• Created Date: Jan 11 1971 12:00AM