Frp Rebar Wrap Properties: GFRP_bar
Fiber-reinforced polymer (FRP) reinforcement properties for concrete structures — GFRP/CFRP/BFRP/AFRP bars per ACI 440.1R-15, and CFRP/GFRP/AFRP externally bonded wraps and pultruded plates per ACI 440.2R-17; includes tensile strength, elastic modulus, ultimate strain, density, CTE, bond strength, and environmental reduction factors CE
| product type | record id | CTE longitudinal per C (1/C) | CTE transverse per C (1/C) | area mm2 (mm2) | bar size or width | bond strength MPa (MPa) | density kg per m3 (kg/m3) | diameter mm or thickness mm (mm) | elastic modulus GPa (GPa) | environmental reduction factor CE | fiber type | max service temp C (C) | notes | tensile strength MPa (MPa) | ultimate strain pct (%) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| GFRP_bar | GFRP_bar_No3_Eglass | 0.000006 | 0.000021 | 71 | No.3 | 9.5 | 1,900 | 9.5 | 46 | 0.7 | E_glass | 60 | ASTM bar size No.3; d_b=9.5mm; A_b=71mm2; f_*fu min 690 MPa per ACI 440.1R-15 Table 3.1; E_f=40-46 GPa; CE=0.70 concrete not exposed to earth/weather per ACI 440.1R-15 Table 7.2.1; CTE from fib Bulletin 40 Table 2.1 | 690 | 1.5 |
| GFRP_bar | GFRP_bar_No3_Sglass | 0.000007 | 0.00002 | 71 | No.3 | 10.5 | 1,900 | 9.5 | 52 | 0.7 | S_glass | 65 | S-glass GFRP bar No.3; higher tensile strength than E-glass (~10-15% higher); E_f ~52 GPa (S-glass E ~87 GPa fiber; composite ~52 GPa at 60% Vf); less common than E-glass; used in demanding applications | 760 | 1.5 |
| GFRP_bar | GFRP_bar_No4_CE_exterior | 0.000006 | 0.000021 | 129 | No.4_exterior | 9.5 | 1,900 | 12.7 | 46 | 0.6 | E_glass | 60 | Same as GFRP_bar_No4_Eglass but CE=0.60 for concrete exposed to earth and weather per ACI 440.1R-15 Table 7.2.1; design tensile strength f_fu=CE*f_*fu=0.60*655=393 MPa; note: design strain eps_fu=CE*eps_*fu | 655 | 1.4 |
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