An Experimental Study on Hybrid Noncompression CF Bracing and GF Sheet Wrapping Reinforcement Method to Restore Damaged RC Structures

Table 1

The physical properties of the carbon fibers used in this study.

Classification	Yarn number	Tensile strength (MPa)	Mass per unit length (g/km) (tex)	Density (g/cm^3)	Filament diameter (cm)	Sectional area (cm^2)	Brace diameter (mm)	Tensile force (kN)
Type-A	100	3,790	3,273	1.74	0.155	1.881	15.5	712.9 (310.1)
Type-B	200	4,900	1,761	1.80	0.112	1.957	15.8	958.8 (454.4)

The yarn number data are based on manufacturers’ specifications (type-A: Fyfe, USA, and type-B: Toray, Japan). The CF X-bracing was fabricated in-house. Parentheses indicate the material test results from the institute in Korea.