U.S. flag An official website of the United States government.
Official websites use .gov

A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS

A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

i

Laboratory Evaluation of Anti-Strip Additives in Hot Mix Asphalt

File Language:
English


Details

  • Creators:
  • Corporate Creators:
    Clemson University. Dept. of Civil Engineering
  • Corporate Contributors:
  • Subject/TRT Terms:
  • Publication/ Report Number:
    FHWA-SC-06-07
  • Resource Type:
    Tech Report
  • Geographical Coverage:
    United States
  • TRIS Online Accession Number:
    1090577
  • Corporate Publisher:
    South Carolina. Dept. of Transportation
  • Abstract:
    The use of hydrated lime or other liquid anti-stripping agents (ASA) is the most common method to improve the moisture susceptibility of asphalt mixes. However, most laboratory test conditions used to evaluate the moisture susceptibility of the mixes are only for a short duration of time. This might not be a good representation of the field conditions (i.e., several months or years of service). Thus, a study to evaluate the effects of conditioning the mixes for longer durations was initiated. Also, another problem with the use of the liquid anti-stripping agents is their heat storage stability. This report addresses these two issues, by preparing and testing mixtures made with fresh binder for indirect tensile strength after conditioning the samples for 1, 7, 28, 90 and 180 days, and samples prepared from binder stored for 3 days at 163o C after conditioning them for 1, 28 and 90 days. The results of this study indicated that hydrated lime and the liquid anti-stripping agents were equally effective for the mixes used in this research when conditioned beyond 1 day. In the case of samples prepared from stored binder, there was no significant difference in the effectiveness of hydrated lime and the liquid anti-stripping agents even after conditioning for 1 day. Though it was observed that none of the ASA treatments performed better than others in the case of samples prepared with stored binder, it was also observed that almost all mixes gave significantly similar wet ITS and TSR values as samples prepared from fresh binder.
  • Format:
    PDF
  • Funding:
    Research Project No. 650
  • Collection(s):
  • Main Document Checksum:
    urn:sha256:af9bb8011aa8a48d7f2ee72be74f04074f3ebfebc2ac66ef34f90f265d262047
  • Download URL:
  • File Type:
    Filetype[PDF - 711.78 KB ]
PREVIOUS
File Language:
English
ON THIS PAGE
Details
ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners. As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.
BACK TO TOP