Performances of Concrete Columns with Modular UHPC Permanent Formworks Under Axial Load

International Journal of Concrete Structures and Materials

Table 1 Details of the experimental specimens

Column types		Specimen	Section size (mm × mm)	Height (mm)	Concrete cover thickness^a (mm)	Area of reinforcement^b (mm²)	Reinforcement ratio (%)
Without UHPC formworks	A	A-1	215 × 215	1200	25	4 \(\Phi\) 16 (804)	1.739
	A	A-2	215 × 215	1200	25	4 \(\Phi\) 16 (804)	1.739
	B	B-1	215 × 215	1200	40	4 \(\Phi\) 16 (804)	1.739
	B	B-2	215 × 215	1200	40	4 \(\Phi\) 16 (804)	1.739
	C	C-1	185 × 185	1200	25	4 \(\Phi\) 16 (804)	2.349
	C	C-2	185 × 185	1200	25	4 \(\Phi\) 16 (804)	2.349
With UHPC formworks	D	D-1	215 × 215	1200	40	4 \(\Phi\) 16 (804)	1.739
	D	D-2	215 × 215	1200	40	4 \(\Phi\) 16 (804)	1.739
	E	E-1	215 × 215	1200	40	4 \(\Phi\) 16 (804)	1.739
	E	E-2	215 × 215	1200	40	4 \(\Phi\) 16 (804)	1.739

^aConcrete cover thickness includes the thickness of the UHPC permanent formworks
^bLongitudinal reinforcement