Long-Term Monitoring of Asphalt Concrete Anti-Stripping

The South Dakota Department of Transportation (SDDOT) has used lime as an anti-strip additive for asphalt concrete (AC) for a number of years, as initial laboratory testing showed it to be a superior anti-strip agent. Recently, Dr. Peter Sebaaly, University of Nevada-Reno, completed SD1999-10 Asphalt Concrete Anti-strip Techniques which compared lime to several alternative anti-strip additives, both in laboratory and field testing. The results of this effort clearly showed lime was a superior ant-strip admixture based on laboratory testing of field samples such as cores and cutouts. Unfortunately, the series of test sections incorporating lime, a latex anti-strip admixture and two liquid anti-strip admixtures onto overlay construction projects near Yankton and Cottonwood did not demonstrate any significant performance differences as the evaluation period for the test sections coincided with a severe drought condition. The researchers' final recommendation was: The field surveys of the test sections indicated that the two-year period is not long enough to assess differences in field performance of the various anti-strip additives. The following extended performance monitoring program is recommended: (1)Conditions surveys of the test sections should be continued on an annual basis (annually using Research staff and biennially by the researcher). (2) Field cores should be obtained after 5 and 8 years of service or as seems necessary by the condition surveys. (3) Field cores should be evaluated through a laboratory program similar to the one used on the two years old cores. This research project is intended to provide further monitoring and field verification of performance differences between the various test sections. The objectives of this research project are to: (1) Provide a field performance evaluation of lime compared to other anti-strip admixtures; (2) Compare initial laboratory test results with long-term field performance and additional laboratory testing of cores; and (3) Assess the appropriateness of current laboratory testing to predicting field performance.


  • English


  • Status: Active
  • Contract Numbers:


  • Sponsor Organizations:

    South Dakota Department of Transportation

    Transportation Building, 700 E Broadway
    Pierre, SD  United States  57501
  • Project Managers:

    Johnston, Dan

  • Performing Organizations:

    University of Nevada, Reno

    College of Engineering
    Reno, NV  United States  89557
  • Principal Investigators:

    Sebaaly, Peter

  • Start Date: 20030701
  • Expected Completion Date: 0
  • Actual Completion Date: 20110430
  • Source Data: RiP Project 12577

Subject/Index Terms

Filing Info

  • Accession Number: 01458300
  • Record Type: Research project
  • Source Agency: South Dakota Department of Transportation
  • Contract Numbers: SD2003-05
  • Files: RiP, STATEDOT
  • Created Date: Jan 3 2013 12:39PM