PURPOSES : In this study, experimental findings regarding the frost resistance of concrete incorporated with mineral admixtures such as fly ash (FA) and ground granulated blast-furnace slag (SG) are presented.
METHODS : To evaluate the performance of the abovementioned concretes under repeated freezing and thawing environments, based on the ASTM C 666 standard, the relative dynamic modulus of elasticity and mass ratio measurements are performed regularly. Furthermore, based on the ASTM C 672 standard, the concretes are exposed to 4% CaCl2 and NaCl salt solutions along with repeated 50 cycles of freezing and thawing. Subsequently, the scaling resistance is evaluated based on the scaled-off mass content and visual examination.
RESULTS : SG is less effective in enhancing the scaling resistance of concrete compared with FA. However, the concrete incorporated with SG is more resistant to repeated freeze-thaw actions compared with OPC concrete. Meanwhile, compared with OPC concrete, the concrete incorporated with FA indicates a similar performance in terms of scaling resistance and better resistance against repeated freeze-thaw actions.
CONCLUSIONS : The frost resistance of concrete depends significantly on the types of mineral admixtures used in concrete. This emphasizes the importance of selecting the appropriate binder to achieve durable concrete pavements in cold climate regions.

ABSTRACT
1. 연구배경 및 목적
2. 실험개요
    2.1. 사용재료
    2.2. 콘크리트 배합
    2.3. 실험방법
3. 실험결과 및 고찰
    3.1. 역학적 특성
    3.2. 공극특성
    3.3. 스케일링 저항성
    3.4. 동결융해 저항성
4. 결론 및 요약
REFERENCES

• 박세호(군산대학교 토목공학과) | Park Se-Ho (Department of Civil Engineering, Kunsan National University)
• 이승태(군산대학교 토목공학과) | Lee Seung-Tae (Department of Civil Engineering, Kunsan National University) 교신저자