Accelerating Mix Designs for Base Materials

Stabilization of roadway or stockpile materials allows for enhancing strength and stiffness properties of pavement base layers to meet structural requirements in a cost-effective and sustainable manner. Historically, stabilization mixture design criteria relied on compressive strength results and, depending on the treatment and test method, could take nearly a month to complete. Additionally, the different treatments currently require different preparation, curing, and acceptance criteria. This project will develop a harmonized accelerated design procedure for base materials with the objective of producing an acceptable design recommendation within seven (7) days. This project will include stabilizer types such as cement, lime, lime-fly-ash, asphalt emulsion, and foamed asphalt, and will focus on rapid test turnaround time, lab curing techniques to rapidly simulate cured field conditions, inclusion of moisture susceptibility in the mix design, and performance-related design criteria. This project will develop recommended harmonized test procedures, suggested specification modifications as applicable, and perform training workshops.

• Record URL:
  https://library.ctr.utexas.edu/Presto/project=7027

Language

• English

Project

• Status: Active
• Funding: $689885
• Contract Numbers:

  0-7027

• Sponsor Organizations:

  Texas Department of Transportation

  11th and Brazos Streets
  Austin, TX  United States  78701

  Federal Highway Administration

  1200 New Jersey Avenue, SE
  Washington, DC  United States  20590
• Managing Organizations:

  Texas Department of Transportation

  11th and Brazos Streets
  Austin, TX  United States  78701
• Project Managers:

  Dassi, Martin

• Performing Organizations:

  Texas A&M Transportation Institute (TTI)

  400 Harvey Mitchell Parkway South
  Suite 300
  College Station, TX  United States  77845-4375
• Principal Investigators:

  Sebesta, Stephen

• Start Date: 20190710
• Expected Completion Date: 20231031
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Base course (Pavements); Mix design; Stabilizers; Test procedures
• Subject Areas: Highways; Maintenance and Preservation;

Filing Info

• Accession Number: 01714839
• Record Type: Research project
• Source Agency: Texas Department of Transportation
• Contract Numbers: 0-7027
• Files: RIP, STATEDOT
• Created Date: Aug 26 2019 2:44PM