In-situ Mechanical Characterization for Compacted Aggregates

The evaluation of compacted unbound aggregate layers is perhaps the most common undertaking in transportation related projects. The assessment of compaction compliance in engineered fills, subgrades, subbases, and bases in roadways and railways is central to ensure the longevity of ground transportation infrastructure. As such, this study tackles one of the most common preventable causes of premature failure in pavement structures. The technical objective of this project is to conduct a review of theoretical methods for the determination of strength and stiffness. The scope of this project includes two specific tasks: to identify the barriers to the adoption of available in-situ test devices and to explore untapped theoretical advances that could be translated into new in-situ test devices. The research team will outline a pathway to automation for the highest ranked test method identified. By exploring the basic measurement requirements, the team will identify compatible electronics (sensors, controllers, data loggers, and communication systems), and create a blueprint for an automated prototype and prepare a proposal for its development. In the case of the most promising theories identified, the research team will formulate a needs assessment that outlines a series of steps needed for the translation from theory to application.

• Supplemental Notes:
  • 17GTNMS02

Language

• English

Project

• Status: Completed
• Funding: $52000
• Contract Numbers:

  69A3551747106

• Sponsor Organizations:

  Office of the Assistant Secretary for Research and Technology

  University Transportation Centers Program
  Department of Transportation
  Washington, DC  United States  20590
• Managing Organizations:

  Office of the Assistant Secretary for Research and Technology

  University Transportation Centers Program
  Department of Transportation
  Washington, DC  United States  20590

  Transportation Consortium of South-Central States (Tran-SET)

  Louisiana State University
  Baton Rouge, LA  United States  70803
• Project Managers:

  Newtson, Craig

• Performing Organizations:

  New Mexico State University

  Las Cruces, NM  United States  88003
• Principal Investigators:

  Cortes, Douglas

  Bandini, Paola

• Start Date: 20170508
• Expected Completion Date: 20181108
• Actual Completion Date: 20181108
• USDOT Program: University Transportation Centers Program

Subject/Index Terms

• TRT Terms: Aggregates; Pavement performance; Pavements; Stiffness; Strength of materials; Subbase (Pavements)
• Subject Areas: Construction; Geotechnology; Highways; Materials; Pavements;

Filing Info

• Accession Number: 01635010
• Record Type: Research project
• Source Agency: Transportation Consortium of South-Central States (Tran-SET)
• Contract Numbers: 69A3551747106
• Files: UTC, RIP
• Created Date: May 21 2017 10:30AM