MDOT Specific Design Procedure for Chip Seals

Historically, the Mississippi Department of Transportation has used chip seals as a preventative maintenance treatment on low traffic rural routes. Developing a methodology to design and evaluate the performance of the design is important to produce a cost effective and long lasting product. Currently, the Department sets target application rates for the binder and aggregate based on general material properties. In addition, the current specifications do not make allowance for the condition of the roadway at the time of placement of the chip seal. Basic chip seal design procedures are needed to establish the binder and aggregate application rates considering the actual component materials, environmental factors, traffic, and existing roadway surface condition. As a part of the design procedure, a test method or methods are needed to evaluate the chip seal design to help ensure the durability of the chip seal and help establish construction criteria for rolling, sweeping, and opening to traffic.

Language

• English

Project

• Status: Active
• Funding: $400000
• Sponsor Organizations:

  Mississippi Department of Transportation

  401 North West Street, P.O. Box 1850
  Jackson, MS  United States  39215-1850
• Performing Organizations:

  Mississippi State University, Mississippi State

  2 Research Boulevard
  Mississippi State, MS    39759
• Principal Investigators:

  Howard, Isaac

• Start Date: 20171221
• Expected Completion Date: 20221231
• Actual Completion Date: 0
• Source Data: State Study 272

Subject/Index Terms

• TRT Terms: Chip seals; Design; Durability; Specifications; Test procedures
• Geographic Terms: Mississippi
• Subject Areas: Design; Highways; Maintenance and Preservation; Pavements;

Filing Info

• Accession Number: 01665740
• Record Type: Research project
• Source Agency: Mississippi Department of Transportation
• Files: RIP, STATEDOT
• Created Date: Apr 9 2018 2:23PM