Experimental and Numerical Study on the Compression Behavior of Square Concrete-Filled Steel Tube Stub Columns with Steel Fiber-Reinforced High-Strength Concrete

Table 2

Mix proportions of concrete.

ID	W/B (HSC); W/C (NSC)	C	W	SF	S	F	G	SP	StlF
	(%)	Unit weight (kg/m^3)
3	0.25	809	222	80	1052	162		3.01
10/F10	63.2	348	220		1065		666	2.85	157 (100F)

W/B: water binder ratio; W/C: water cement ratio; C: cement; W: water; SF: silica fume; S: fine aggregated; F: filler; G: coarse aggregate; SP: super plasticizer; StlF: steel fiber (volume fraction %).