Sustainability and Training Materials for In-Place Recycling

Hot and cold in-place recycling techniques recycle one-hundred percent of a hot mix asphalt (HMA) pavement during the maintenance and rehabilitation process. The three most common agency reported drawbacks to in-place recycling usage are: 1) lack of data on performance benefits, 2) lack of guidelines on construction procedures (training materials), and 3) limited information on input parameters for pavement thickness design. There is a need to provide pavement design professionals and highway agencies with the knowledge and tools necessary to use in-place pavement recycling as a feasible, sustainable, competitive alternative to traditional pavement maintenance and rehabilitation strategies. The two main objectives of this study are to develop (1) a sustainability calculator for in-place recycling and (2) training materials regarding in-place recycling for use in web-based training courses. The study will quantify the on-site fuel consumption and emissions of nitrogen oxides (NOₓ), particulate matter (PM), hydrocarbons (HC), carbon monoxide (CO), and carbon dioxide (CO₂) resulting from various asphalt recycling procedures, including cold in-place recycling (CIR), hot in-place recycling (HIR), and full-depth recycling (FDR). The major outcome of this study will be a methodology that compares the on-site energy and environmental impacts of each of the recycling procedures to conventional asphalt construction. The major output of this study will be a spreadsheet-based fuel use and emissions calculator that will be made available for widespread use by owners, contractors, practitioners, policy-makers, and other asphalt industry stakeholders. Additionally, an interactive web based training course will be made available to students and agency personnel working with or wanting more information on hot-in-place recycling and full depth reclamation. Implementation will provide pavement design professionals and highway agencies with the knowledge and tools necessary to use in-place pavement recycling as a feasible, sustainable, competitive alternative to traditional pavement maintenance and rehabilitation strategies.

    Language

    • English

    Project

    • Status: Active
    • Funding: $79716.00
    • Contract Numbers:

      DTRT13-G-UTC36

      SPTC 14.2-12

    • Sponsor Organizations:

      Asphalt Recycling & Reclaiming Association

      #3 Church Circle - PMB 250
      Annapolis, Maryland  United States  21501

      Research and Innovative Technology Administration

      University Transportation Centers Program
      1200 New Jersey Avenue, SE
      Washington, DC  United States  20590
    • Performing Organizations:

      Oklahoma State University, Stillwater

      School of Civil & Environmental Engineering
      207 Engineering South
      Stillwater, OK  United States  74078
    • Principal Investigators:

      Cross, Stephen

      Lewis, Phil

    • Start Date: 20141001
    • Expected Completion Date: 0
    • Actual Completion Date: 20160930
    • Source Data: RiP Project 37458

    Subject/Index Terms

    Filing Info

    • Accession Number: 01543089
    • Record Type: Research project
    • Source Agency: Southern Plains Transportation Center
    • Contract Numbers: DTRT13-G-UTC36, SPTC 14.2-12
    • Files: UTC, RiP
    • Created Date: Nov 5 2014 1:01AM