Effect of Loading Conditions on the Magnitude and Variation of Pavement Responses in Accelerated Loading Testing

The objective of this study was to perform a statistical analysis on pavement response data collected from accelerated loading testing at the Virginia Tech Transportation Institute. A heavy vehicle simulator device (model Mark VI from Dynatest) was used to load a test section of asphalt pavement featuring a cold central plant recycled base layer. The test section was subjected to different loading conditions to explore the effect of speed, wheel load, and tire inflation pressure on the pavement responses. Pavement response data were collected through a data acquisition system with an instrument set of 3 pressure cells and 3 strain gauges. A three level full factorial experiment was conducted using speed, wheel load, and tire inflation pressure, which resulted in a total of 27 different loading configurations. Analysis of variance and correlation analysis are conducted on the instrument data to better understand the effects speed, wheel load, and tire inflation pressure on pavement responses. It was found that the instrumentation recorded signals that were repeatable under varying loading conditions. Also, as expected, the pressure and strain responses were highly correlated to speed and wheel load.

Language

  • English

Media Info

  • Media Type: Web
  • Pagination: pp 119-133
  • Monograph Title: Airfield and Highway Pavements 2017: Design, Construction, Evaluation, and Management of Pavements

Subject/Index Terms

Filing Info

  • Accession Number: 01685218
  • Record Type: Publication
  • ISBN: 9780784480922
  • Files: TRIS, ASCE
  • Created Date: Oct 4 2018 4:33PM