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Fundamental Study on Development of Sealants used for WIM Sensor Installation

WIM 센서 설치에 적합한 실런트 개발을 위한 기초적인 연구

  • 임치수 (전북대학교 토목공학과) ;
  • 김두병 ((주)로드씰 연구소) ;
  • 김용주 (한국건설기술연구원 도로연구소) ;
  • 이강훈 (한국건설기술연구원 도로연구소) ;
  • 이재준 (전북대학교 토목공학과 방재연구소)
  • Received : 2017.01.10
  • Accepted : 2017.03.28
  • Published : 2017.04.17

Abstract

PURPOSES : This study aims to develop a sealant for use in the installation of Weigh-In-Motion (WIM) sensor for asphalt concrete or cement concrete pavements. METHODS : In order to investigate the properties of various sealants that were mixed with latex and carbon fiber, various test methods were adopted, such as bituminous bond strength test, softening point test, and cone penetration test. To evaluate moisture susceptibility, the BBS test was conducted under moist condition. The bond strength ratio (BSR) was calculated based on tensile strength ratio method. RESULTS : The sealant's properties significantly varied according to the amount of latex or carbon fiber. The usage of latex marginally enhanced the cone penetration test result, notwithstanding reduced asphalt content. This implies that the sealant will be proper cold temperature reason. Moreover, the addition of latex and carbon fiber evidently increased the softening point. This indicates that the tendency of the material to flow at elevated temperatures is encountered during service. With the addition of latex and carbon fiber, the moisture susceptibility measured with BSR improved marginally, while the bond strength under dry condition decreased marginally. Sealant F displays the highest bond strength and BSR under limited test conditions. CONCLUSIONS : According to the proportion of latex and carbon fiber mixed, properties of sealant, such as softening point, cone penetration, and BSR varied marginally. This indicates that the sealant has to be applied considering the environmental condition, to improve service life.

Keywords

References

  1. AASHTO,(American Association of State and Highway Transportation Officials). Standard Test Method of Test for Dertermining Asphalt Binder Strength by Means of the Asphalt Bond Strength (ABS) Test. AASHTO TP:91-11.
  2. Al-Yagout, Mohammad A., Mahoney, Joe P., Pierce, Linda M., and Hallenbeck, Mark E. (2005) Improving Traffic Characterization to Enhance Pavement Design and Performance Load Spectra Development, Washington State Transportation Center (TRAC) University of Washington, Box 354802 University District Building; 1107 NE 45th Street, Suite 535 Seattle, Washington 98105-4631.
  3. ASTM D 5329, (1996), Standard Test Methods for Sealants and Fillers, Hot-Applied, For Joints and Cracks in Asphaltic and Portland Cement Concrete Pavement, American Society for Testing and Materials.
  4. ASTM D 6690, (2015), Standard Specification for Joint and Crack Sealants, Hot Applied, For Joints and Cracks in Asphaltic and Portland Cement Concrete Pavement, American Society for Testing and Materials.
  5. Fernando, Emmanuel G., Middleton, Dan., Carlson, Todd., Longmire, Ryan., Sepulveda, Edward., Ruback, Leonard., Freeman, Tom. and Oh, Jeongho. (2009), Development Weight-In-Motion Installations on Asphalt Concrete Pavements, Texas Transportation Institute, The Texas A&M University System, College Station, Texas 77843-3135.
  6. Im, JeongHyuk., Kim, Y. Richard., and Yang, SungLin. (2014), Bond Strength Evaluation of Asphalt Emulsions used in Asphalt Surface Treatments, International Journal of Highway Engineering, Vol. 16, No. 5. pp. 1-8. https://doi.org/10.7855/IJHE.2014.16.5.001
  7. Lee, Hyun-Seok, (2015) The Improvement Measures of the Legal System Related to an Enforcement for Overweight Vehicles on Expressway, Transportation Technology and Policy Vol. 12, No. 1.
  8. Vaziri, Shahram H., Hass, Carl. Rothenburg, Leo., Ponniah, Joseph., and Hass, Ralph. (2011) Weight-In-Motion Sensors' Installation and Calibration Efforts on Highway 401 Perpetual Pavement, Woodstock, 2011 Annual Conference of the Transportation Association of Canada, Edmonton, Alberta.
  9. Zhang Lixin., Haas, Carl., and Tighe, Susan L.(2007) Evaluation Weight-In-Motion Sensing Technology for Traffic Data Collection, 2007 Annual Conference of the Transportation Association of Canada, Saskatoon, Saskatchewan.