인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
DBpia AI
AI 에이전트
AI 아이디어
AI 리더
AI 뷰어
Citeasy
크롬 서지관리 다운로드
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
Tensile relaxation is important because of its role in mitigating the possibility of cracking in concrete under constant restraint. This is made possible by the reduction in the induced or applied stress over time. Gradually, the relaxation behaviour of concrete has become clearer in many ways despite the difficulty in testing and carrying out experimental work. In order to better understand the relaxation behaviour of concrete, this aim of this study is to investigate the influence of the initial stress-strength ratio on concrete in tension as well as the rate at which relaxation occurs. Tensile relaxation was determined using dog-bone specimens after 3 and 10 days of curing. Three water-binder ratios of 0.45, 0.55 and 0.65 were investigated respectively. After determining the tensile strength of the samples, they were placed under constant stress levels of 20%, 40%, 60% and 80% of the ultimate failure load. Results show that although the increase in initial stress-strength ratio increases the relaxation, there is no proportionality. The rate of stress loss is not influenced by either one of the parameters varied. While the study adds to our understanding of the relaxation behaviour of concrete, more detailed and longer duration studies are required to validate these findings while also considering the potential effects of micro-cracking.
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.
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