Asphalt concrete, which is used as a road base material, accounts for >90% of a road pavement. A huge amount of waste concrete and waste asphalt concrete aggregates are generated. Recently, carbon neutrality is promoted across all industries for sustainability. Therefore, to achieve carbon neutrality in the asphalt concrete industry, waste asphalt concrete aggregates should be recycled. Additionally, road base materials are prepared using additives to ensure structural stability, durability, and economic efficiency. In this study, recycled asphalt concrete aggregates were used to evaluate the physical properties of road base materials according to the type of polymer additive and mixing method, and the applicability of road base each material was evaluated. Results showed that when the acrylate-based polymer additive was mixed, the uniaxial compressive strength was 30% higher. Furthermore, the compressive strength of the split mix was improved by ~29% compared to the total mix.

1. 서 론
2. 시멘트 안정처리 기층공법
3. 기층재 재료 및 실험 계획
    3.1 사용 재료
    3.2 실험 계획
4. 실험 결과 및 분석
5. 결 론
ACKNOWLEDGMENT
REFERENCES

• 임희섭(윤성산업개발 기술연구소 연구소장) | Lim, Heeseob (Director; R&D Institute Research, Yoonsung Development Co., Ltd, Siheung, Korea)
• 최유승(윤성산업개발 대표이사) | Choi, Yuseung (President, Yoonsung Development Co., Ltd, Daegu, Korea)
• 조형규(한국세라믹기술원 선임연구원) | Cho, Hyeongkyu (Senior Researcher, Carbon Neutrality & Materials Digitalization Division, Korea Institute of Ceramic Engineering and Technology, Jinju, Korea)