Assessment of Recycled Asphalt Paving Unit Cost Risk: A Case Analysis

The majority of pavements in the United States are made of asphalt materials. Many of these pavements are getting old and they require some form of rehabilitation. In many cases, recycled asphalt pavement (RAP) and recycled asphalt shingles (RAS) can be utilized to create a pavement system while saving money by conserving natural resources. There are four major asphalt production cost categories including materials, plant production, trucking, and field construction. In general, the materials are the most expensive category, in many cases up to about 70% of the cost to produce HMA mixtures. Several thousands of records of various field projects from 2008 to 2013 were obtained from South Carolina Department of Transportation (SC DOT) and all of the mixtures containing RAP or RAS were recorded and analyzed. The main objective of this study was to compare the upper quantiles of the unit cost between two groups of asphalt pavement mixes containing different percentages of aged binder using a Harrell-Davis estimator of the quantiles. In most cases, the asphalt mixes containing more than 15% aged binder actually appear to have a negative effect on cost predictability at higher quantiles.

Language

  • English

Media Info

  • Media Type: Web
  • Features: References;
  • Pagination: pp 627-635
  • Monograph Title: Construction Research Congress 2016: Old and New Construction Technologies Converge in Historic San Juan

Subject/Index Terms

Filing Info

  • Accession Number: 01605865
  • Record Type: Publication
  • ISBN: 9780784479827
  • Files: TRIS, ASCE
  • Created Date: May 24 2016 3:02PM