PURPOSES: The purpose of this study is to evaluate the long-term physical and mechanical properties of domestic asphalt binders.
METHODS: The physical properties are evaluated by penetration, softening point, penetration index, and binder viscosity. The mechanical properties were confirmed by the changes of G*, phase angle (δ), stiffness, and m-value.
RESULTS: The physical properties of the asphalt binder were not clearly distinguished. In the case of G* flowing after using a pressure-aging vessel, the two types of PG 64-22 (a paving asphalt) showed similar results. However, the PG 76-22 binder was confirmed to have variations in value. The two types of PG 64-22 showed stiffness changes over time at the lowest temperatures, whereas the PG 76-22 binder maintained a constant range of change and exhibited stable behavior.
CONCLUSIONS: The PG 76-22 binder showed stable behavior across physical and mechanical properties, but PG 64-22 binders showed viscosityy changes in some sections.

ABSTRACT
 1. 서론
 2. 아스팔트 바인더 생산 및 시험
  2.1. 아스팔트 바인더 생산
  2.2. 아스팔트 바인더 시험
 3. 아스팔트 바인더 장기모니터링 평가
  3.1. 온도 감온성 평가
  3.2. 점탄성거동 평가
 4. 결론
 REFERENCES

• 박태순(서울과학기술대학교 건설시스템공학과) | Park Tae-Soon
• 강일환(서울과학기술대학교 건설시스템공학과) | Kang Il-Hwan (Dep. of Civil Engineering Seoul National University of Science and Technology) 교신저자