Repairing and Strengthening of Damaged RC Columns Using Thin Concrete Jacketing

Table 13

Summary of the results for all tested column specimens.

#	Description		Notation	Pu (kN)	Axial displacement (mm)
1	UC unjacketed reference column		UC	331	0.972
2	MC monolithically cast reference columns		MC1	478	0.99
3			MC2	751	1.02
4	NSC-4.75 jacket, [A-B]	Roughening surface by mechanical wire brushing	A-W	517	0.99
5			B-W	713	1.11
6		Roughening surface by mechanical scarification	A-C	642	1.02
7			B-C	812	1.14
8		Bonding by using shear studs	A-S	653	1.05
9			B-S	859	1.2
10	UHPFRSCC jacket, [X-Y]	Roughening surface by mechanical wire brushing	X-W	883	1.908
11			Y-W	1224	1.989
12		Roughening surface by mechanical scarification	X-C	956	1.92
13			Y-C	1280	2.001
14		Bonding by using shear studs	X-S	1030	1.98
15			Y-S	1356	2.04