PURPOSES : This study was conducted to evaluate the physical properties of micro-foamed asphalt binders. Surfactants and water-soluble anti-stripping agent were used to improve the performance of the foamed asphalt binder, and a domestically developed foamed asphalt generator was used for the micro-foamed asphalt binder. The results of this study can be used as technical data for the domestic application of foamed asphalt technology.
METHODS : To evaluate the physical properties of the micro-foamed asphalt binder, basic properties such as penetration, viscosity, softening point, and ductility were evaluated. Additionally, DSR and BBR tests were performed to confirm the change in the performance grade of the micro-formed asphalt binder when using surfactants, water-soluble anti-stripping agent, and water.
RESULTS : Of the results of evaluating the physical properties of the micro-foamed asphalt binder containing surfactant confirmed that the kinematic viscosity was reduced by 12.5% compared with the straight asphalt binder, which indirectly confirmed that compaction is possible even at low temperatures when producing the asphalt mixture. In addition, the PG grade of straight asphalt and micro-foamed asphalt binder was PG 64-22. This result indicates that surfactants, water-soluble anti-stripping agent, and water did not significantly affect the PG grade of the asphalt binder.
CONCLUSIONS : The properties of the micro-foamed asphalt binder were confirmed through the evaluation of the physical and rheological properties of the foamed asphalt binder to which the surfactant and water-soluble anti-stripping agent were applied, and we determined that it can be used as a technical material for the revitalization of Korean foamed asphalt technology.

ABSTRACT
1. 서론
2. 기포 아스팔트 바인더의 특성
3. 계면활성제가 함유된 미세 기포 아스팔트
    3.1. 미세 기포 아스팔트 생산을 위한 계면활성제의 적용
    3.2. 기포 아스팔트의 수분저항성 향상
4. 계면활성제가 함유된 미세 기포 아스팔트의실내실험
    4.1. 물리적 특성 평가
    4.2. 유변학적 특성 평가
REFERENCES

• 이강훈(한국건설기술연구원 전임연구원 · 인하대학교 토목공학과 박사과정) | Lee Kanghun Corresponding author