Review Article
Review of Experimental Studies on Application of FRP for Strengthening of Bridge Structures
Table 4
The mechanical properties of FRP bars and prestressing steel [
92].
| | AFRP | CFRP | GFRP | Prestressing steel |
| Fiber volume ratio | 0.65 | 0.65 | 0.55 | — | Density (g/cm3) | 1.28 | 1.53 | 2.1 | 7.85 | Longitudinal tensile strength (GPa) | 1.25–1.4 | 2.25–2.55 | 1.08 | 1.86 | Transverse tensile strength (MPa) | 30 | 57 | 39 | 1860 | Longitudinal E-modulus (GPa) | 65–70 | 142–150 | 39 | 210 | Transverse E-modulus (GPa) | 5.5 | 5.7 | 8.6 | 210 | In-plane shear strength (MPa) | 4.9 | 71 | 89 | — | In-plane shear modulus (GPa) | 2.2 | 7.2 | 3.8 | 72.1 | Major Poisson’s ratio | 0.34–0.6 | 0.27 | 0.28 | 0.3 | Minor Poisson’s ratio | 0.02 | 0.02 | 0.06 | 03 | Bond strength (MPa) | 10–13 | 4–20 | — | 6.6–7.1 | Maximum longitudinal strain (%) | 2.0–3.7 | 1.3–1.5 | 2.8 | 4.0 | Maximum transverse strain (%) | — | 0.6 | 0.5 | 4.0 | Longitudinal compressive strength (MPa) | 335 | 1440 | 620 | 1860 | Transverse compressive strength (MPa) | 158 | 228 | 128 | 1860 | Longitudinal thermal expansion coefficient (×10−6·1/°C) | −2 | −0.9 | 7 | 11.7 | Transverse thermal expansion coefficient (×10−6·1/°C) | 60 | −27 | 21 | 11.7 |
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