The purpose of this study was to derive an optimal mix design for bridge deck pavements that can compensate for the limitations of latexmodified concrete (LMC). To address the limitations of LMC, this paper proposes the incorporation of silica fume into LMC. Concrete mixtures with varying ratios of latex and silica fume were prepared, and tests for compressive strength, flexural strength, and chloride-ion penetration resistance were conducted to compare and analyze the fundamental performance of each mix. Latex contributed to the improvement of the initial pore structure and significantly affected the chloride-ion penetration resistance in the early stages of curing. However, its influence gradually diminished over time. In contrast, silica fume induced additional C-S-H formation and further improved the pore structure through pozzolanic reactions as time progressed, thus exerting a greater impact in the later stages of curing. The L7-SF8 variable demonstrated the best performance in terms of compressive strength and chloride-ion penetration resistance. Given the characteristics of bridge-deck pavements, this variable is considered the most suitable for ensuring long-term durability. Therefore, this paper proposes a mixture of 7% latex and 8% silica fume as the optimal mix design.

ABSTRACT
1. 서론
2. 이론적 배경
    2.1. 교면포장용 콘크리트 특성
    2.2. 라텍스 혼입 콘크리트 특성
    2.3. 실리카퓸 혼입 콘크리트 특성
3. 실험계획 및 방법
    3.1. 실험계획
    3.2. 사용 재료
    3.3. 배합설계
    3.4. 실험방법
4. 실험 결과
    4.1. 공기량 및 슬럼프
    4.2. 압축강도 및 휨강도
    4.3. 염소이온침투저항성
5. 결론
REFERENCES

• 김연태(한국건설기술연구원 도로교통연구본부 전임연구원) | Kim Yeon-Tae (Research Specialist Korea Institute of Civil Engineering and Building Technology, 283, Goyangdae-ro, Ilsanseo-gu, Goyang-si, Gyeonggi-do, 10223, Korea) Corresponding author