Mitigating Joint Reflective Cracks using Stone Interlayers: Case Study on Louisiana Highway 5, Desoto Parish

The purpose of this research is to monitor the effectiveness of stone interlayers in composite pavements, determine the depth of stone required to prevent reflective cracking at the joints, and measure the movement of the concrete joints under traffic loading. Five test sections, 1000 ft. in length each, will be constructed with stone interlayers ranging in depth from 9 to 21 inches. The control section has an average stone interlayer thickness of 5 inches. On this project, both transverse and longitudinal crack control will be of interest with the transverse cracks occurring due to movement at the joint and longitudinal cracks due to widening the existing Portland Cement Concrete (PCC) lanes with asphalt concrete.

Language

• English

Project

• Status: Active
• Funding: $210000
• Contract Numbers:

  18-2P

  1000218

• Sponsor Organizations:

  Federal Highway Administration

  5304 Flanders Drive, Suite A
  Baton Rouge, LA  United States  70808
• Managing Organizations:

  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
• Project Managers:

  Zhang, Zhongjie

• Performing Organizations:

  Louisiana Transportation Research Center

  4101 Gourrier Avenue
  Baton Rouge, LA  United States  70808
• Principal Investigators:

  Gaspard, Kevin

• Start Date: 20171017
• Expected Completion Date: 20231016
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Case studies; Composite pavements; Pavement interlayers; Pavement joints; Reflection cracking; Traffic loads
• Geographic Terms: Louisiana
• Subject Areas: Highways; Maintenance and Preservation; Materials; Pavements;

Filing Info

• Accession Number: 01648533
• Record Type: Research project
• Source Agency: Louisiana Transportation Research Center
• Contract Numbers: 18-2P, 1000218
• Files: RIP, STATEDOT
• Created Date: Oct 18 2017 9:19AM