Extraction of Layer Properties from Intelligent Compaction Data

This project will develop and demonstrate the application of a software tool for assessing physico-mechanical properties of subgrade, subbase, and base and lift layers based on intelligent compaction rollers data during construction. The work will be carried out in two stages. Work in Stage 1 will focus on developing robust models capable of matching intelligent compaction (IC) roller measurements of composite soil stiffness, given individual layer properties and thicknesses. Several different model structures will be pursued, including physical (such as layered mechanics) and non physical-based (such as stochastic) approaches. Field testing will be performed to provide data sets to facilitate model development. The Stage 1 deliverables will include physical and stochastic models to predict IC roller measurements of composite soil stiffness, given individual layer properties and thicknesses. The evaluation metrics for work in this stage will include quantifying the physical and stochastic models' ability to predict observed field behavior. Work in Stage 2 will involve development of an analysis tool based on Stage 1 results to predict layer properties from IC roller measured composite stiffness and thicknesses. Additional field testing will be conducted to evaluate the tool (including ease of implementation) on different types of soil. The deliverables for this stage will include an analysis tool to predict layer properties from IC roller-measured composite stiffness and layer thickness and a final report detailing all the relevant. The evaluation metrics for work in this stage will include quantifying the ability of the analysis tool to predict layer properties from IC roller-measured composite stiffness and layer thickness, the ease with which the tool could be implemented. The final report will detail the development of the analysis tool, its strengths and limitations, and strategies for its implementation by state DOTs.

Language

  • English

Project

  • Status: Completed
  • Contract Numbers:

    Project 20-30, IDEA

  • Sponsor Organizations:

    Federal Highway Administration

    1200 New Jersey Avenue, SE
    Washington, DC  United States  20590

    American Association of State Highway & Transportation Officials (AASHTO)

    444 North Capitol Street, NW, Suite 225
    Washington, DC  United States  20001

    National Cooperative Highway Research Program

    Transportation Research Board
    500 Fifth Street, NW
    Washington, DC  United States  20001
  • Project Managers:

    Jawed, Inam

  • Start Date: 20091027
  • Expected Completion Date: 0
  • Actual Completion Date: 0
  • Source Data: RiP Project 24031

Subject/Index Terms

Filing Info

  • Accession Number: 01547239
  • Record Type: Research project
  • Source Agency: National Cooperative Highway Research Program
  • Contract Numbers: Project 20-30, IDEA
  • Files: TRB, RiP
  • Created Date: Dec 4 2014 1:00AM