Strengthening Effect of Prestressed Near-Surface-Mounted CFRP Tendon on Reinforced Concrete Beam

Table 1

Commercialized AFRP tendons.

Characteristics	Arapree®	FiBRA	Technora®	Parafil®
Fiber	Twaron	Kevlar49	Technora	Kevlar49
Resin	Epoxy	Epoxy	Vinylester	Vinylester
Fiber volume ratio	0.45	0.65	0.65	1.00
Tensile strength (GPa)	1.21	1.11	1.9	1.2–1.9
Elastic modulus (MPa)	501	68.61	53	71–125.81
Bond strength (MPa)	7.7	10–13	10–16	—
Max. strain (%)	2.31	1.61	3.6	1.5–3.51
Thermal exp. coeff. (×10^−6)	−2	−2	−3	—
Relaxation (%)	11–14	12	11.6	6–91
Supplier	Sireg (Italy)	FiBEX Co. (Japan)	Teijin (Japan)	Linear Composites (UK)
Reference	[4]		[4, 11]	[4]