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

Evaluation of modified single seal surface treatments.

File Language:
English


Details

  • Alternative Title:
    Final report, evaluation of modified single seal surface treatments.
  • Creators:
  • Corporate Creators:
  • Subject/TRT Terms:
  • Publication/ Report Number:
    VTRC 95-R23
  • Resource Type:
    Tech Report
  • Geographical Coverage:
    Virginia
  • Edition:
    Final report.
  • Corporate Publisher:
    Virginia Transportation Research Council (VTRC)
  • Abstract:
    This report describes a field study of a multicourse asphalt emulsion chip seal, designated as a modified single seal. The treatment, already used in North Carolina, consists of an application of emulsion and coarse aggregate followed by another application of emulsion and a final layer of fine aggregate. Sixty sections were placed in three districts in 1986-88, totaling approximately 400 lane-km of surfacing. These sections were evaluated periodically by a team of local operations personnel and research staff. The operations personnel also provided estimates of service life. for conventional single chip seals, used for a cost-benefit analysis. The modified seals performed better and were more cost-effective than conventional surface treatments. Also, the hazard of broken windshields caused by loose aggregate was virtually eliminated on the modified seal treatments. The report includes recommendations for ensuring that the final product is of high quality. The recommendations include using a pilot vehicle, limiting the speed of construction traffic, using clean dry blot aggregate, applying the coarse aggregate not more than one stone thick, and using the proper nozzles on the asphalt distributor.
  • Format:
    PDF
  • Collection(s):
  • Main Document Checksum:
    urn:sha256:f1f59dbe5a2c812c7c99e90698909e7f0081b233c3914252d1c5dd5aae6067ea
  • Download URL:
  • File Type:
    Filetype[PDF - 2.98 MB ]
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