Tensile Strength of GFRP Reinforcing Bars with Hollow Section

Table 2

Dimensions and characteristics of test specimens.

Specimen		Diameter (mm)		Section hollowness ratio	Number of rovings
Designation	Quantity	Inner	Outer
D19HD0	3	18.58	20.87	0%	217
D19HD6	6	18.63	20.97	10.4%	196
D19HD8	6	18.68	20.83	18.3%	180
D19HD10	6	18.75	20.78	28.4%	159
D19HD12	6	19.03	21.12	39.7%	133