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 percent, 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. This research project addresses research tasks to develop an automated in situ permeability test that takes less than 30 seconds per test location, allowing for spatial analysis of the results. This is possible using an innovative gas-pressurized system. Spatial maps of the in situ permeability can be used as field QC/QA criteria for pavement base/subbase to identify field problems such as segregation and particle degradation.

Record URL:

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: 20080902
Expected Completion Date: 0
Actual Completion Date: 0
Source Data: RiP Project 18977

Subject/Index Terms

TRT Terms: Base course (Pavements); Degradation failures; Pavement design; Pavements; Permeability; Quality assurance; Quality control; Subbase (Pavements)
Subject Areas: Highways; Pavements; I30: Materials;

Filing Info

Accession Number: 01547256
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