VARIATION IN TEMPERATURE AND MECHANICAL PROPERTIES OF ASPHALTIC CONCRETE DUE TO STORAGE IN SURGE BINS

This study was initiated to seek data relative to the effects of storage time and temperature on the physical properties of asphaltic concrete. Thermocouples were installed at various locations within an unheated insulated surge bin to record temperatures. Specimens for Marshall stability and flow were molded at different time intervals during loading and unloading of the surge bin. The asphalt cement, recovered by the Abson Method, was tested for penetration and viscosity. The study was confined to wearing course sand gravel mix. The data indicated oxidation of asphalt cement and increase in stability value with storage time. Some minor segregation of finer fractions was indicated by the gradation analysis. The temperature recordings indicated considerable variation at different depths within the surge bin. However, the data indicated that the storage time can be increased from the presently allowed two hours to a maximum of 12 hours without any detrimental effect on the mix. /FHWA/

  • Corporate Authors:

    Louisiana Department of Highways

    Research and Development Section
    Baton Rouge, LA  United States 
  • Authors:
    • Hearld, J L
    • Lag, L D
  • Publication Date: 1973-3

Media Info

  • Pagination: 12 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00081907
  • Record Type: Publication
  • Source Agency: Federal Highway Administration
  • Report/Paper Numbers: Final Rpt.
  • Files: TRIS, USDOT, STATEDOT
  • Created Date: Apr 22 1975 12:00AM