콘크리트 충전강관구조(CFT) 적용을 위한 일반강도 콘크리트 물성에 관한 실험적 연구

A Study on Characteristics of Normal Strength Concrete adapted to Concrete Filled Steel Tube

As a rule, in case of CFT for high-rise building, high strength concrete is required since it should have high fluidity, segregation resistance and large proportion of cement per unit considering the fi11ing beneath the diaphragm. However, regarding the low-rise building under 20 stories, it is somewhat difficult to use high strength concrete. This is a fundamental study to develop a concrete with normal strength and high fluidity for CFT of low-rise building, whose purposes are in speculating several kinds of changes in concrete's characteristics through various experiments and offering basic documents for practicalization in si to and production through mock-up test.