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
This study investigates the rheological behaviour of 3D-printable mortars incorporating fine recycled concrete aggregates (FRCA), focusing on the influence of 25% and 50% FRCA substitution on key rheological parameters, such as flow spread, penetration resistance, shear stress, and yield stress over time. Rheological tests were conducted at 20, 40, and 60 minutes to capture the time-dependent behaviour of the mixtures. The flow spread test evaluated the mortar’s consistency and ability to maintain workability over time, essential for continuous extrusion during the printing process. The penetration resistance test assessed the stiffening rate of the mortar, providing insights into setting time and early strength development. The vane and slug tests measured yield stress, a critical parameter for ensuring buildability and layer stability, indicating the mixture’s capacity to support subsequent layers without deformation or collapse. The results from the reference mixture were used to compare the performance of mortars with 25% and 50% FRCA content, highlighting the impact of recycled aggregates on time-dependent rheological properties. Mortars containing FRCA exhibited differences in flow retention and yield stress evolution, which are key factors influencing extrudability and printability in additive manufacturing processes.
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.