Experimental Study on Improving the Compressive Strength of UHPC Turntable

Table 1

Chemical and material properties.

Chemical composition (%)	Cement	Silica fume
SiO2	66.8	92
CaO	20.3	0.3
Al2O3	5.1	0.3
Fe2O3	2.7	0.4
MgO	3.5	2.1
Na2O	0.2	1.2
SO3	2.2	0.4
K2O	0.8	3.3
Material properties
Apparent density (g/cm^3)	3.11	2.85
Blaine SSA (m^2/g)	0.38	23.7
Compressive strength (3 days; unit: MPa)	33.8	—