[Retracted] Mechanical Behavior of Silica Fume Concrete Filled with Steel Tubular Composite Column

Table 3

Mix proportions for infilled concrete column.

Mix	Cement (kg/m^3)	Silica fume (kg/m^3)	Water (kg/m^3)	Coarse aggregate (kg/m^3)	Manufacturing sand (kg/m^3)	Superplasticizer (kg/m^3)
1	391.35	0	156.54	808.23	1140.02	7.82
2	352.22	39.13	156.54	802	1135.18	7.82