International Journal of Highway Engineering (한국도로학회논문집)

Korean Society of Road Engineers (한국도로학회)
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Evaluation of Asphalt Emulsions Curing and Adhesive Behavior used in Asphalt Pavement Preservation (Surface Treatments)

아스팔트 도로포장 유지보수(표면처리)용 유화아스팔트의 양생 및 점착거동특성 평가

  • Im, Jeong Hyuk (Highway Pavement Research Division, SOC Research Institute, Korea Institute of Civil Engineering and Building Technology) ;
  • Kim, Y. Richard
  • 임정혁 (한국건설기술연구원) ;
  • 김영수 (노스캐롤라이나 주립대학교 토목공학과)
  • Received : 2014.10.07
  • Accepted : 2014.11.18
  • Published : 2014.12.18
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Abstract

PURPOSES : The objective of this study is to evaluate the curing and adhesive behavior of asphalt emulsions including polymer-modified emulsions for chip seals and fog seals. METHODS : For the laboratory testing, the evaporation test, the bitumen bond strength (BBS) test, and the Vialit test are used. Also, the rolling ball test and the damping test are employed to evaluate the curing properties of the fog seal emulsions. In order to conduct all the tests in controled condition, all test procedures are performed in the environmental chamber. The CRS-2L and the SBS CRS-2P emulsions are used as a polymer-modified emulsion, and then unmodified emulsion, the CRS-2, is compared for the evaluation of chip seal performance. For the fog seal performance evaluation, two types of polymer-modified emulsions (FPME-1 and FPME-2) and one of unmodified emulsion, the CSS-1H, are employed. All the tests are performed at different curing times and temperatures. RESULTS AND CONCLUSIONS : Overall, PMEs show better curing and adhesive behavior than non-PMEs regardless of treatments types. Especially, the curing and adhesive behavior of PMEs is much better than non-PMEs before 120 minutes of curing time. Since all the test results indicate that after 120 minutes of curing time the curing adhesive behavior of emulsions, the early curing time, i.e., 120 minutes, plays an important role in the performance of chip seals and fog seals.

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References

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