WATER SENSITIVITY OF ASPHALT-AGGREGATE MIXES: TEST SELECTION

The research presented in this report was conducted to identify the important factors influencing the water sensitivity of asphalt paving mixtures, and to develop a test method to evaluate water sensitivity of asphalt concrete mixtures for mix design. The test method was to be performance related. A review of current procedures revealed that no single method was suitable for evaluation and related to field performance. Based on a hypothesis that air voids in the mixture may be the major source and cause of water damage, a test system was developed to evaluate the major factors that influence water sensitivity. The Environmental Conditioning System (ECS) was used to develop a test procedure that includes specimen preparation; measurement of permeability using air, water, or both; vacuum wetting; cycling at various temperatures; and continuous repeated loading while monitoring resilient modulus after each conditioning cycle. Results using four core mixtures indicated that the ECS can distinguish different materials and their relative water susceptibility. A tentative test procedure is recommended.

• Record URL:
  • http://onlinepubs.trb.org/onlinepubs/shrp/SHRP-A-403.pdf
• 
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0309058201
• Supplemental Notes:
  • 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:
  • Terrel, R L
  • AL-SWAILMI, S
• Publication Date: 1994-6

Language

• English

Media Info

• Features: Appendices; Figures; References; Tables;
• Pagination: 183 p.

Subject/Index Terms

• TRT Terms: Asphalt concrete; Loss and damage; Methodology; Performance tests; Permeability; Sensitivity analysis
• Identifier Terms: Strategic Highway Research Program
• Old TRIS Terms: Damage control; Performance testing
• Subject Areas: Highways; Materials; I31: Bituminous Binders and Materials;

Filing Info

• Accession Number: 00666018
• Record Type: Publication
• ISBN: 0309058201
• Report/Paper Numbers: SHRP-A-403
• Files: TRIS, TRB, ATRI
• Created Date: Sep 15 1994 12:00AM