Optimization of Cement Modified Recycled Base (CMRB) Mixture Design

CMRB has been a successful reconstruction strategy for the South Carolina Department of Transportation (SCDOT), however, minimal changes have occurred to optimize the design and testing parameters or move towards performance specifications. SCDOT leads the nation in the use of reclamation and is in a unique position to lead the industry in improving the process. The current design practices focus on compressive strength and the current field practices focus on depth of treatment, moisture, and compaction, which may not be the most effective factors for assessment of durability and long term performance. The objective of this research is to review the current practices used by SCDOT in reclamation treatments and determine procedures to update that will optimize the planning, sampling, design, and testing of reclamation treatments. Variables that will be studied include chemical stabilization using cement, lime-cement blends, and lime kiln dust (LKD) in both traditional and synthetic reclamation.

Language

• English

Project

• Status: Active
• Funding: $320,999.00
• Contract Numbers:

  SPR 753

• Sponsor Organizations:

  South Carolina Department of Transportation

  955 Park Street
  P.O. Box 191
  Columbia, SC  United States  29202-0191

  Federal Highway Administration

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

  South Carolina Department of Transportation

  955 Park Street
  P.O. Box 191
  Columbia, SC  United States  29202-0191
• Project Managers:

  Watford, Jade

• Performing Organizations:

  Clemson University

  110 Lowry Hall
  Box 340911
  Clemson, SC  United States  29634-0911
• Principal Investigators:

  Rangaraju, Prasada Rao

• Start Date: 20200701
• Expected Completion Date: 20230831
• Actual Completion Date: 0

Subject/Index Terms

• TRT Terms: Base course (Pavements); Cement; Lime cement; Reconstruction; Recycled materials
• Subject Areas: Pavements;

Filing Info

• Accession Number: 01744172
• Record Type: Research project
• Source Agency: South Carolina Department of Transportation
• Contract Numbers: SPR 753
• Files: RIP, STATEDOT
• Created Date: Jun 26 2020 2:38PM