Taking It to the Streets: History of the Federal Highway Administration Trailer Program

This article tells the story of the Federal Highway Administration (FHWA) Demonstration Projects (DP) Program, undertaken in the late 1980s, that utilized a mobile testing lab to test full volumetric properties of the asphalt mix in use. Called “Field Management of Asphalt Mixes,” this project promoted the idea of using mix volumetric properties for quality control and acceptance. The mobile labs could be set up at a plant site and sample mixes during production, measuring aggregate properties and binders, sampling mixes, and determining asphalt content and gradation. Samples were also compacted and tested. The author describes how the program evolved in the mid-1990s to assist in implementation efforts using Superpave. In addition, the binder component of the mobile lab program provided development work for the Multi-Stress Creep and Recovery (MSCR) specification (AASHTO M332). A final section describes mix performance testing that goes beyond Superpave design applications and some of the newer projects of the still-active mobile lab program. Numerous photographs of the testing labs illustrate the article.

Language

  • English

Media Info

  • Media Type: Print
  • Features: Photos;
  • Pagination: pp 35-39
  • Serial:
    • Asphalt
    • Volume: 34
    • Issue Number: 1
    • Publisher: Asphalt Institute
    • ISSN: 0004-4954

Subject/Index Terms

Filing Info

  • Accession Number: 01708005
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jun 17 2019 4:13PM