This research was designed to validate that the Environmental Conditioning System (ECS) can differentiate among asphalt concrete mixtures that will perform well or poorly in the field with regard to water sensitivity. Twelve test sections were identified, at least two in each of the four Strategic Highway Research Program (SHRP) environmental regions. From these 12 sections, specimens were prepared using the original mix design, original aggregates, asphalt, and admixtures. Specimens were tested using three procedures: 1) ECS, 2) the Oregon State University wheel tracker, and 3) the Elf asphalt wheel tracker. Cores were taken from the field test sections to evaluate performance of the mixture in the pavement. The performance of the mixtures in each of the test procedures was compared in an attempt to develop a correlation among procedures. Results indicate that the ECS test procedure can distinguish among the relative performance of mixtures, with regard to water sensitivity, as measured in the field and by the wheel trackers. However, the age of the sections in the field is still relatively young, and water damage is expected to manifest itself in the future in those pavements identified as water sensitive.

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    • Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved
  • Corporate Authors:

    Strategic Highway Research Program

    National Research Council, 2101 Constitution Avenue, NW
    Washington, DC  United States  20418
  • Authors:
    • Allen, W L
    • Terrel, R L
  • Publication Date: 1994-5


  • English

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 194 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00666017
  • Record Type: Publication
  • ISBN: 0309058112
  • Report/Paper Numbers: SHRP-A-396
  • Files: TRIS, TRB, ATRI
  • Created Date: Sep 14 1994 12:00AM