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

• TRT Terms: Environmental impacts; Fuel consumption; Hot mix asphalt; In place density; In-place recycling; Policy making; Pollutants; Recycled materials; Sustainable development; Training programs
• Subject Areas: Education and Training; Highways; Pavements; I30: Materials;

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