Effect of Concrete Age and Creep on the Behavior of Concrete-Filled Steel Tube Columns

Table 6

Geometrical and mechanical properties of tests columns.

Number	(mm)	(mm)	(mm)	(MPa)	(MPa)	Aggregate kind	Percent of expansive
1#	133	4.5	400	345	30.4	Recycled	0
2#	133	4.5	400	345	30.4	Recycled	5
3#	133	4.5	400	345	30.4	Recycled	10
4#	133	4.5	400	345	30.4	Conventional	0
5#	133	4.5	400	345	30.4	Conventional	5
6#	133	4.5	400	345	30.4	Conventional	10