Evaluation of Asphalt Rubber and Reclaimed Tire Rubber in Chip Seal Applications

The objective of this study is to improve the durability and to extend the life of chip seal applications in Louisiana using rubber-modified emulsion and reclaimed rubber tires in the aggregate layer. To achieve this objective, the study will review state practices in the use and construction of rubberized chip seal including both asphalt rubber, rubber-modified emulsion, and reclaimed rubber tires in the aggregate layer. Based on this review, job mix formula will be developed for rubberized chip seal and will be evaluated in the laboratory. Crumb rubber will be used as a binder modifier as well as part of the aggregate stone. Construction, short-term field performance, and cost-benefit analysis of this new class of asphalt surface treatment will be evaluated to facilitate implementation in pavement preservation activities.

• Supplemental Notes:
  • 18BLSU16

Language

• English

Project

• Status: Completed
• Funding: $113000
• 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

  Louisiana Department of Transportation

  P.O. Box 94245
  1201 Capitol Access Road
  Baton Rouge, LA  United States  70804-9245

  Louisiana Transportation Research Center

  4101 Gourrier Avenue
  Baton Rouge, LA  United States  70808
• Managing Organizations:

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

  Louisiana State University
  Baton Rouge, LA  United States  70803

  Louisiana Transportation Research Center

  4101 Gourrier Avenue
  Baton Rouge, LA  United States  70808
• Project Managers:

  Hassan, Marwa

• Performing Organizations:

  Louisiana State University and A&M College

  202 Himes Hall
  Baton Rouge, LA  United States  70803
• Principal Investigators:

  Elseifi, Mostafa

• Start Date: 20180515
• Expected Completion Date: 20210531
• Actual Completion Date: 0
• USDOT Program: University Transportation Centers

Subject/Index Terms

• TRT Terms: Asphalt rubber; Chip seals; Crumb rubber; Field studies; Pavement performance; Paving; Reclaimed rubber
• Subject Areas: Highways; Materials; Pavements;

Filing Info

• Accession Number: 01674459
• Record Type: Research project
• Source Agency: Transportation Consortium of South-Central States (Tran-SET)
• Contract Numbers: 69A3551747106
• Files: UTC, RIP, STATEDOT
• Created Date: Jul 4 2018 8:05PM