International Journal of Highway Engineering (한국도로학회논문집)

Korean Society of Road Engineers (한국도로학회)
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Characteristics of Dynamic Shear Modulus Mastercurve of Aged or Unaged Asphalt Binders

동전단 마스터곡선을 이용한 아스팔트 바인더의 노화 특성 평가

  • 윤태영 (한국건설기술연구원 도로연구실) ;
  • 함상민 (한국건설기술연구원) ;
  • 유평준 (한국건설기술연구원 도로연구실)
  • Received : 2012.12.06
  • Accepted : 2013.01.22
  • Published : 2013.02.15
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Abstract

PURPOSES: To characterize the aging effect on asphalt binder, dynamic shear modulus mastercurve of two typical asphalt binders are developed. METHODS: To develop dynamic shear modulus mastercurve, dynamic shear modulus at high temperature and creep stiffness at low temperature are measured by temperature sweep test and bending beam rheometer test, respectively. RESULTS: It is observed that the aging effect on asphalt binder can be clearly observed from dynamic shear modulus mastercurve and the mastercurve can be utilized to predict behavior of asphalt binder at wide range of temperature. CONCLUSIONS: It is confirmed that SBS 5% modified binder has more desirable mechanical property at low and high temperature as a pavement material comparing to PG64-22 binder and the mastercurve is an effective tool to evaluate the property of asphalt binder.

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References

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