Rapid, Self-Contained In-situ Permeameter for Field QC/QA of Pavement Base/Subbase Materials

Recent studies have shown that the coefficient of variation of in-situ permeability is as high as 50% to 400%, making base/subbase permeability the most variable engineering parameter in the pavement system. To really understand how this variability is affecting pavement performance, a rapid in-situ test is needed that can be used to collect many data points over a small area. The main objectives of this study are to improve the design of the prototype field permeameter; create a database of soil-water retention characteristics for a wide range of aggregate base materials that are needed for the theoretical calculation of saturated hydraulic conductivity; validate the permeameter measurements by comparing with the standard laboratory measurements; develop a standard procedure for performing the test, guidelines for calibration of the device, and a user manual; and demonstrate the feasibility of using the device as a rapid QC/QA tool for determining the in-situ permeability of pavement base course layers.

Language

  • English

Project

  • Status: Completed
  • Sponsor Organizations:

    National Academy of Sciences

    500 5th Street, N.W.
    Washington, DC    20001
  • Performing Organizations:

    Iowa State University, Ames

    Center for Transportation Research and Education
    2711 South Loop Drive, Suite 4700
    Ames, IA  United States  50010-8664
  • Principal Investigators:

    Jahren, Charles

    White, David

  • Start Date: 20070605
  • Expected Completion Date: 0
  • Actual Completion Date: 20100831
  • Source Data: RiP Project 14366

Subject/Index Terms

Filing Info

  • Accession Number: 01460271
  • Record Type: Research project
  • Source Agency: Midwest Transportation Consortium
  • Files: UTC, RiP
  • Created Date: Jan 3 2013 1:21PM