Laboratory Evaluation of Thin Asphalt Overlays for Pavement Preservation in Nevada

It is clear that increasing demands on the Nevada highway system will occur in parallel with reduced resources. It is critical for the Nevada Department of Transportation (NDOT) to implement technologies that enable the stretching of available dollars. The application of thin overlays has a strong probability of extensively improving the sustainability and safety of Nevada roadway network with a modest increase in construction price. While the expected specifications of designing and constructing thin overlay mixtures will promote extended overlay life, improved friction resistance, and improved durability, it will be critical to monitor the long-term performance of the thin overlay. It will be possible to estimate the initial cost of thin overlays as well as long-term life cycle cost analysis in order to establish a cost-to-benefit ratio associated with thin overlay mixtures. Such cost analysis results will reveal the benefits and limitations of such mixtures in comparison to its associated cost. The recommendations of this study are tremendously needed to assist NDOT materials, construction, and maintenance groups to evaluate their future usage of thin overlay mixtures.

• Record URL:
  http://www.unr.edu/solaris/research/ongoing-projects

Language

• English

Project

• Status: Completed
• Funding: $68014.00
• Contract Numbers:

  DTRT-13-G-UTC55

• Sponsor Organizations:

  Department of Transportation

  Office of the Assistant Secretary for Research and Technology
  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Performing Organizations:

  University of Nevada, Reno

  College of Engineering
  Reno, NV  United States  89557
• Principal Investigators:

  Hajj, Elie

• Start Date: 20141101
• Expected Completion Date: 0
• Actual Completion Date: 20160131
• Source Data: RiP Project 37023

Subject/Index Terms

• TRT Terms: Benefit cost analysis; Evaluation and assessment; Laboratory tests; Mixtures; Overlays (Pavements); Pavement performance; Service life; Sustainable development
• Geographic Terms: Nevada
• Subject Areas: Highways; Maintenance and Preservation; Pavements;

Filing Info

• Accession Number: 01541228
• Record Type: Research project
• Source Agency: Center for Advanced Transportation Education and Research (CATER)
• Contract Numbers: DTRT-13-G-UTC55
• Files: UTC, RIP
• Created Date: Oct 21 2014 1:01AM