인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
Abstract This study investigates the synergistic effects of nanosilica (NS) and graphene oxide (GO) in enhancing the performance of untreated recycled brick aggregate (RBA) concrete, using both 100% ordinary Portland cement (OPC) and a 50:50 OPC–LC 3 (limestone-calcined clay) binder system. The experimental work focuses on multi-performance optimization across mechanical, durability, and environmental parameters. Statistical analysis confirmed significant improvements in compressive strength and durability when NS and GO were used in combination, achieving a 23.8% increase in 180-day compressive strength (44.8 MPa) and a 64% reduction in chloride migration. The optimization process, utilizing Response Surface Methodology (RSM), identified the optimal combination of 3% NS and 0.05% GO for OPC and 2.5% NS with 0.04% GO for LC 3 , balancing mechanical performance and environmental sustainability. Life cycle assessment (LCA) showed that LC 3 -based mixes reduced Global Warming Potential (GWP) by 19%, while maintaining comparable mechanical and durability performance to OPC systems. This study demonstrates the potential of nanomodification combined with low-carbon binders to produce sustainable, high-performance concrete, offering a data-driven framework for optimizing RBA-based concrete for infrastructure applications.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.