Study on Mechanical Properties of Concrete-Filled Steel Tubular Members under Axial Tension

Table 4

Concrete material consumption table.

Strength grade	Material consumption per cubic meter (kg/m^3)
	C	S	G	W	SP
C30	380	1198	648	185	3.9
C40	460	1210	590	182	4.2
C50	510	1220	545	178	4.5