Group | Slab | Cracking load (KN) | Ultimate load (KN) | Max. deflection (mm) | Max. strain (μe) | Mode of failure | ||
Bars | Concrete | |||||||
I | Steel | S-3C-25-0 | 52 | 78.9 | 44.14 | 10470 | 3820 | A |
II | Circular GFRP | G-3C-25-1.5 | 22 | 63.0 | 45.92 | 5650 | 3705 | B |
Square GFRP | G-3S-25-1.5 | 27.8 | 70.3 | 32.18 | 7370 | 3420 | B | |
III | Square GFRP | G-3S-35-1.5 | 38.5 | 74.4 | 32.98 | 5120 | 3562 | B |
Square GFRP | G-3S-45-1.5 | 41.5 | 80.0 | 36.40 | 8528 | 3730 | B | |
IV | Square GFRP | G-4S-25-1.5 | 37.5 | 77.0 | 28.82 | 5911 | 3501 | B |
Square GFRP | G-5S-25-1.5 | 48 | 90.0 | 23.62 | 5131 | 3800 | B | |
V | Square GFRP | G-3S-25-0 | 19.2 | 64.4 | 28.62 | 4967 | 3201 | B |
Square GFRP | G-3S-25-2.5 | 32.2 | 75.2 | 31.74 | 6208 | 3430 | B |