Evaluation of Rapid Mix Design for Lime Treated Materials

There is a need to develop guidelines for a rapid mix design with small samples for lime-treated materials for Texas Department of Transportation (TxDOT). Thus, the objectives of this project are to: (1) conduct a literature review and summarize state-of-the practice and key findings; (2) review and summarize mix design methods currently in use for lime treated materials; (3.) conduct a comprehensive lab program comparing existing procedures with small sample methods; (4) develop a lab mix design method for lime treatment that is similar in methodology, with accelerated methods of mix design currently in use or under development for asphalt-based and cement-based treatments; (5) demonstrate the procedures for upcoming construction projects; (6) develop recommended test procedures and updates to specifications. To achieve these objectives, the research team will conduct comprehensive testing and analysis program for a set of carefully selected soils and base course, with a range of plasticity index and clay minerals, and will develop a mix design procedure that will result in a significant reduction in turnaround time and amount of materials required for mix design. The research team will evaluate and compare physical, chemical, and mechanical test properties of the samples designed according to the current method and the selected potential methods, to recommend the most optimum curing, moisture conditioning and testing methods. The research team will provide conclusions and recommendations in the form of specification updates for effective implementation.

Language

  • English

Project

  • Status: Active
  • Funding: $545000
  • Contract Numbers:

    0-7225

  • Sponsor Organizations:

    Texas Department of Transportation

    125 E. 11th Street
    Austin, TX  United States  78701-2483
  • Project Managers:

    Souraphath, Danny

  • Performing Organizations:

    University of Texas at El Paso

    El Paso, TX  United States 
  • Principal Investigators:

    Mallick, Rajib

  • Start Date: 20240901
  • Expected Completion Date: 20270831
  • Actual Completion Date: 0

Subject/Index Terms

Filing Info

  • Accession Number: 01932652
  • Record Type: Research project
  • Source Agency: Texas Department of Transportation
  • Contract Numbers: 0-7225
  • Files: RIP, STATEDOT
  • Created Date: Oct 3 2024 10:34AM