Study on Mechanical Behavior of Fully Encased Composite Slender Columns with High-Strength Concrete Using FEM Simulation

Table 2

Summary of mechanical properties of the concrete.

Materials	f ck (MPa)	f cm (MPa)	f ctm (MPa)	E cm (GPa)
Concrete	90/105	98/115	5.045/5.355	43.631/45.775	0.2
	100/115	108/125	5.232/5.518	44.921/46.935
	120/140	128/150	5.564/5.878	47.27/49.574