Optimizing the Sustainability of Asphalt Pavements through Incorporating Crumb Rubber in High-Modulus Asphalt Concrete (HMAC) Mixtures in Louisiana

The proposed research study will build on the results of the authors’ initial study, titled “Viability Assessment and Cost-Effectiveness of Using High-Modulus Asphalt Concrete (HMAC) as Base Course in Asphalt Pavements in Louisiana.” In specific, this project aims to optimize the performance, cost-effectiveness, and sustainability of HMAC mixtures using crumb rubber and local materials in Louisiana. To achieve this objective, high-modulus asphalt mixtures mimicking the European approach will be prepared using the Superpave specifications. These mixtures will include different percentages of crumb rubber, two PG grades, and different binder contents. The dynamic modulus as well as the performance of these mixtures against rutting and cracking will be evaluated in the laboratory. In addition, the field performance and cost-effectiveness of these mixtures will be predicted. The results of this study will provide solutions for fatigue and rutting failures in asphalt pavements in Region 6 enhancing the durability and service life of the road infrastructure. Furthermore, it will enhance the sustainability of the road infrastructure through using crumb rubber from scrap tires.

• Supplemental Notes:
  • 22BLSU02

Language

• English

Project

• Status: Active
• Funding: $58832
• Contract Numbers:

  69A3551747106

• Sponsor Organizations:

  Office of the Assistant Secretary for Research and Technology

  University Transportation Centers Program
  Department of Transportation
  Washington, DC  United States  20590
• Managing Organizations:

  Transportation Consortium of South-Central States (Tran-SET)

  Louisiana State University
  Baton Rouge, LA  United States  70803
• Project Managers:

  Dhasmana, Heena

• Performing Organizations:

  Louisiana State University, Baton Rouge

  P.O. Box 94245, Capitol Station
  Baton Rouge, LA  United States  70803
• Principal Investigators:

  Dhasmana, Heena

• Start Date: 20220401
• Expected Completion Date: 0
• Actual Completion Date: 0
• USDOT Program: University Transportation Centers Program

Subject/Index Terms

• TRT Terms: Asphalt concrete; Asphalt pavements; Cost effectiveness; Crumb rubber; Durability; Dynamic modulus of elasticity; Fatigue strength; Optimization; Pavement performance; Rutting; Service life; Sustainable development
• Geographic Terms: Louisiana
• Subject Areas: Highways; Maintenance and Preservation; Materials; Pavements;

Filing Info

• Accession Number: 01844775
• Record Type: Research project
• Source Agency: Transportation Consortium of South-Central States (Tran-SET)
• Contract Numbers: 69A3551747106
• Files: UTC, RIP
• Created Date: May 6 2022 11:52AM