Cost-effectiveness and performance of overlay systems in Illinois, volume 2 : guidelines for interlayer system selection decision when used in HMA overlays.

Details

• Creators:
  Al-Qadi, Imad L. ; Buttlar, William G. ; Baek, Jongeun
• Corporate Creators:
  Illinois Center for Transportation
• Corporate Contributors:
  Illinois. Department of Transportation. Bureau of Materials and Physical Research
• Subject/TRT Terms:
  Hot Mix Asphalt Pavements Pavement Components Pavement Cracking Pavement Design
• Publication/ Report Number:
  FHWA-ICT-09-045;ICT-009-045, UILU-ENG-2009-2016
• Resource Type:
  Tech Report
• Geographical Coverage:
  Illinois
• Edition:
  Project report, 2005-2008
• Corporate Publisher:
  Illinois Center for Transportation
• Abstract:
  In an effort to control reflective cracking in hot-mix asphalt (HMA) overlays placed over Portland Cement
  
  Concrete (PCC) pavements, several reflective crack control (RCC) systems, including interlayer systems,
  
  have been used. However, the cost-effectiveness of interlayer systems is still in doubt due their performance
  
  and additional costs. In this project, a decision making procedure to aid in the selection of cost-effective
  
  interlayer systems was developed. As a core step in evaluating the benefit-cost ratio (B/C) of interlayer
  
  systems, a user-friendly life-cycle cost analysis (LCCA) program, CIND (Cost-effective INterlayer system
  
  Decision program) was developed. Based on sensitivity analysis, a B/C prediction model was proposed, which
  
  takes into account a performance benefit ratio (PBR) parameter, a material cost ratio (MCR), and a
  
  construction time ratio (CTR). Using the B/C model, a table was developed which allows the user to
  
  determine the most cost-effective interlayer system in a rehabilitation project for a given equivalent single-axle
  
  load (ESAL) level, representative low temperature (TL), and existing concrete pavement joint spacing (JS).
  
  Finally, a decision making tree was constructed to simplify the process of determining the most cost-effective
  
  and compatible interlayer system for a given project. Depending on project significance and/or information
  
  availability, pavement engineers can select from one of three newly developed B/C evaluation tools (in order
  
  of sophistication): application tables, B/C prediction model, and the CIND computer program. Using these
  
  tools, it was found that B/C increases as PBR increases or MCR and CTR decrease. In general, System D is
  
  cost-effective in a wide range of ESALs and TL values; especially in a cold region with lower traffic volume.
  
  The application range is reduced with the increase of JS, however. System E is relatively cost-effective only in
  
  warm regions having higher traffic volume.
  
  
• Format:
  PDF
• Funding:
  ICT-R58
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:393db7fea0e4728c687c0aabb26aa86cc17c637f3b3f4d9a834a312e4e9e8c98b16bb17a9983e0e77cd35373a6e650a608eeec0433f7539da353e9227def3207
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/16721/dot_16721_DS1.pdf
• File Type:
  [PDF - 1.08 MB ]