Full-Scale Probabilistic Assessment of Asphalt Surface Treatments: The Case Study of Lee Road 159

Performance models are the key components in a pavement management system (PMS). A weak link of today’s PMS is the lack of reliable estimates on life-extending benefits of preservation treatments. To address the gap, the National Center for Asphalt Technology (NCAT) started a preservation study in 2012 with laying out preservation treatments on a low-volume county road in Auburn, Alabama. Performance measures including rutting, cracking, roughness, and texture are being collected on a regular basis to this date. The present study aims to implement the survival analysis technique to develop performance curves for preservation treatments. The study confirms that preservation strategies significantly increase survival life of a pavement section when compared with a “do-nothing” scenario. It was found that initial conditions, recycled material usage, crack sealing, and the number of layers have an impact on future deterioration. It is concluded that survival techniques are valuable analysis tools for the assessment, comparison, and prediction of future performance of pavement preservation strategies.

Language

  • English

Media Info

  • Media Type: Web
  • Features: References;
  • Pagination: pp 208-219
  • Monograph Title: Airfield and Highway Pavements 2019: Design, Construction, Condition Evaluation, and Management of Pavements

Subject/Index Terms

Filing Info

  • Accession Number: 01717909
  • Record Type: Publication
  • ISBN: 9780784482452
  • Files: TRIS, ASCE
  • Created Date: Jul 18 2019 3:01PM