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
The high cement content in repair mortars necessitates the development of sustainable and durable alternatives using supplementary cementitious materials (SCMs). Municipal solid waste incinerator bottom ash (MSWI_BA), generated in substantial volumes annually, is currently being landfilled or used in low-value applications, overlooking its potential as valuable SCM. This study investigates the mechanical properties of traditional clinker-based CEM I mortars modified with fresh (type-V) or matured (type-M) MSWI_BA and ground granulated blast-furnace slag (GGBS). CEM I was partially replaced with 10% and 20% MSWI_BA, and GGBS contents of 0%, 15%, 26%, 56%, and 71% by weight of the 10% MSWI_BA. Tests at intervals up to 120 days examined fresh properties, density, and flexural and compressive strength. Results indicate that MSWI_BA reduces density, while GGBS has a minimal effect. MSWI_BA-mortars exhibited lower flexural strengths, with 10% MSWI_BA outperforming 20%, and 15% GGBS yielding the highest flexural strength among MSWI_BA-mortars. Higher GGBS levels delayed early hydration yet promoted long-term strength development. In compressive strength, 10% MSWI_BA outperformed 20%, with type-M achieving comparable results to CEM II and CEM III/A 32.5 after 120 days, and outperforming type-V. These findings highlight the possibilities of MSWI_BA-GGBS blends as sustainable secondary materials for traditional clinker-based repair mortars.
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.