Application of High-Strength Concrete to Fill Tubular Steel Columns

摘要

When high-stength concretes are conveyed by pumping, the pumping pressure may increase and the flowability of high-fluidity concrete may be greatly decreased. This is a problem for construction of concrete-filled tubular steel columns. In this study ,pjmping tests and iflling tests of steel tubular model columns with several kinds of high-fluidity concrete having a water:cementitious ratio of 30