PURPOSES : The use of hydrated lime or other liquid anti-stripping agents (ASA) is the most common method of improving the moisture susceptibility of asphalt mixes. ASAs are also known to have an anti-aging effect, according to several researchers. Therefore, the use of ASAs is expected to enhance the stability of asphalt pavements. The purpose of this study is to investigate the anti-aging effect of ASAs that are found in the domestic market.
METHODS : In this study, an asphalt binder and a mixture mixed with typical domestic solid and liquid ASAs were prepared and aged to evaluate the physicochemical changes. A liquid additive developed by a Korean oil refinery was used as the liquid ASA, and hydrated lime was utilized as the solid ASA. The aging process of the asphalt was determined in the laboratroy based on previous studies to simulate the aging process inh te field.
RESULTS : The result of the laboratory experiment indicates that both the solid and liquid ASAs have an anti-aging effect. Moreover, the liquid additive performed relatively better than the hydrated lime.
CONCLUSIONS : If ASAs have an anti-aging effect in addition to the anti-stripping function, it is expected to improve the stability of the asphalt pavement significantly. However, few studies have been carried out on the anti-aging effect of ASAs found in the domestic market. In this study, we conducted a fundamental study on the anti-aging effect to help in the selection and use of ASAs in the domestic asphalt-paving industry.

ABSTRACT
1. 서론
2. 재료 및 노화모사 방법
    2.1. 사용재료
    2.2. 시험방법
3. 결과분석
    3.1. 노화에 따른 아스팔트 화학적 특성 변화
    3.2. 노화에 따른 아스팔트 물리적 특성 변화
4. 요약 및 결론
REFERENCES

• 정구봉(SK이노베이션) | Chung Ku Bong
• 김기병(SK이노베이션) | Kim Ki Byung
• 이상섭(SK이노베이션) | Lee Sang Sub
• 김우성(SK이노베이션) | Kim Woo Sung 교신저자