| Title |
An Experimental Study on High Strength Concrete for Concrete Filled Steel Tube Column for Field Application |
| Authors |
Lee Jang-Hwan ; Jung Keun-Ho ; Jung Sang-Jin |
| Keywords |
Concrete Filled steel Tube(CFT) ; High Strength Concrete ; Diaphragm ; Curing method |
| Abstract |
CFT(Concrete Filled steel Tube) is a structure of circular or squared of steel column filled with concrete. The steel tube holds the concrete inside and that makes this structure to perform superior features on stiffness, proof stress, transformation, fire resistance and construction itself. In this study, by over the 800kgf/cm2 of high strength concrete for CFT column, research has been done on the basic property of matter such as fluidity, resistance on segregation, compressive strength, setting icons of the concrete filled in the steel tube under conditions of standard weather. Physical properties of concrete for CFT that Concrete with silica fume, fly ash of air entraining and high-range water reducing agent, that used to CFT column research purpose to find the most ideal composition, which is achieved by the investigation in the concrete's property of matter like ability of Slump,?? Bleeding, and Settlement, etc. For this study, experiments which are bused on obtained the result through physical test are practiced, with all of the experiment, specimens only for control are produced in each method of curing and analyzed to relations with core strength in mock-up test. |